Monday, July 21, 2008

The Photoshop Options You Should Never Use

Amongst the plethora of screens and functions and the thousands and thousands of options that you have in Photoshop and Elements for correcting, changing and composing your images, there are some options, features and functions you should never use. It might seem inconceivable that Adobe would put options you shouldn’t use in the program, but they are there, and some of them are named to sound downright savory. These features lurk in the user interface, and users make the same mistakes over and over by using them. The features and functions that you shouldn’t use span every nook and cranny of the program, from opening your images, to correcting, through saving/printing. Users apply them again and again until they learn what these features and functions are and to avoid them because of the damage they do to their images.

The list of features is tremendously long spanning all versions of Photoshop and Elements. Instead of listing all the features, let me simplify the list by making a few generalizations:

  • Don’t ever apply features just because they appear on a dialog and you feel obligated to move a slider or click a button.
  • Don’t ever apply features that don’t improve your image or your vision for it.
  • Don’t ever apply the features you have not experimented with enough to know how to apply with predictable results.

The crust of this biscuit is simply: don’t feel obligated to use features just because they appear on screen and in the program or ‘sound good’. What you should use are the features and functions (and buttons) that make sense, fit your workflow, and improve your images. Features that ‘make sense’ means that you know what the features do before you apply them to finish images, and not that you ‘click-and-pray’.

For example say you open the Levels dialog — which is an imperative tool for image correction. Once the dialog opens, you could click the Auto button. You could also click the White Point, Black Point and Gray balance eyedroppers and apply those — some tutorials may even suggest it. But, even if your image seems to improve on your screen, you may not be doing the image integrity any favors. The fact is that even brilliant features used incorrectly can run counter to what you really want to do for an image or even ruin it. It may be easy to go the fast way and click an Auto button, and it may produce pleasing results at a glance, but it can also compromise your images. And what is the biggest objection to applying things the right way? People want it quicker, and they will ultimately accept speed while sacrificing quality…For my images, it is unacceptable to sacrifice quality to save a few moments. It doesn’t make sense to spend lots of time to learn how to take the best pictures, lots of money to get good equipment, and toss away the quality of the images you captured because you can’t be bothered to spend time getting the corrections right.

Tools you shouldn’t use include those that might damage your images, as well as those you simply don’t know well enough to apply. That is, the list of tools you shouldn’t use is virtually different for every Photoshop user based on their level of experience and what they know. The list will change as you learn and gain experience with the program.

Regretfully learning the tools takes time. However, you can use your time learning more efficiently and cut time from experimentation and exploration. The first thing to do: make a short list of tools you know you should explore. Just start listing those you think you should know better. Don’t list more than 30. Make them tools that you think are important (you may find out otherwise). Next set aside a time — 15 or 20 minutes a day — to explore those features/functions. Plan to explore just one tool a day for as many days as there are tools on the list. To begin your exploration, learn the basics of any feature using the Help materials provided by Adobe. The information there will tell you the way the function was designed to perform and how to apply it. This is a useful starting point: you’ll find out how a feature is applied. Help will tell you little or nothing about the best way to use a feature. Reading up shouldn’t take more than 5 minutes.

Next try applying the feature/function on an image according to the instructions to see how it behaves in practice. Try to give it a workout using all the possibilities you can think of. Apply it to several different images. Spend between 10 and 15 minutes ‘playing’ with the tool. That should serve as your introduction, and you will probably learn a few things you didn’t know before. However, you’ve probably learned just enough to be dangerous…you may be able to apply the tool, but that may not tell you what it really does and why it works, and that can affect how you use it productively.

To learn proven techniques for the best way to apply features, may take a lot more effort, and sometimes weeks, months or even years of study, depending on the complexity of what you are trying to accomplish. It is the kind of time that not everyone can dedicate to learning. Sampling tutorials found on the web may be helpful, but choosing the right tutorials can be tricky and may not be cohesive with a holistic approach to image editing. Some tutorials may actually contradict one another, and it will be hard to sort the good tutorials from the bad, and the harmful. Beware of tricks and tips that you can’t get to work on images other than those used in the tutorial. Even some books that promise quick results or that are a series of effects may never do much to improve your process with image editing. A scattered approach that does not rely on solid process may prove more confusing than helpful. Many tutorials may be well-meaning, written by people who are excited about sharing their new-found successes. However, good intent doesn’t make for a good tutorial — and it may be that what you apply can harm your images…and it may be difficult to tell the difference.

Consulting books and courses by experts in the field, designed to get you up to speed, can save you time and effort. An expert’s years of experience can go to work for you by helping you steer toward the best features and how to use them — saving time in exploring the program. Just as you would invest in your camera or additional equipment like lenses, invest in yourself to gain the skills you need to make the best images…don’t expect the equipment or the program to do-it-for-you (you may want to read my blog about “magic tools”).

So, do yourself a favor and start a list of tools you shouldn’t use today, before you damage another image. Stop oogling at tools that sound like the solution to all your problems, and learn about yourself and what you really need to know. Focus on those that you know and that you can use productively to make your images better. I’d be glad to hear which tools are on your lists, and happy to help you answer your questions about them!

PS — There have been some changes and updates on the hiddenelements.com and photoshopcs.com layers websites that you may want to check out…with more to come. I added some elements 6 materials to hiddenelements.com and a switch to php page building so the site will be easier for me to maintain. I also added some materials to fill out the ‘under construction’ pages on the photoshopcs.com site. I look forward to hearing from visitors about the changes.

Labels: , , , , , ,

Friday, November 02, 2007

Magic Tools in Photoshop and Elements

The Entertainer and the Entertained

Magicians in their magic acts are entertainers. They perform mystical feats designed specifically to cleverly trick us -- those being entertained -- into believing something miraculous is happening when they waive their wand or perform an incantation. Deep down, we know it is somehow explainable, but we want to be entertained, suspend our disbelief, and enjoy the show. We may half-heartedly try to figure out what really happened behind the scenes, but in a way, perhaps, we almost don't want to know: it might ruin the illusion and we'd no longer be entertained. The entertainer practices his craft building the clever and believable deception, and the entertained soak it in without thinking all too hard. That is the difference between the entertainer and the entertained.

Juggler.jpg
The Juggler

Photoshop and Magic
People beginning to edit images with Photoshop and Elements often scour the menus looking for the tool that will do something spectacular to their images believing great images are just a few clicks away. It is almost as if they want the program to entertain them with an element of magic or a fantasic feat of mind reading. Photoshop and Elements have lots of tools whose behavior may seem mysterious and unexplainable at first, at least one named specifically 'Magic Wand', but regretfully there are no 'magic' tools that read your mind. No matter how clever the implementation of a function or how well it seems to work there is never anything 'magic' about a tool itself. There is a calculation -- however complex -- that drives any tool application. The behavior can be described and predicted, no matter how we might resist knowing.

To Be the Magician
A true magician doesn't waive a wand and hope magic will happen -- imagine what would happen to a magician doing that on stage. The magician knows the secrets of the tricks and what goes on behind the scenes, utilizing props and tools with purpose to craft the perfect deception. Likewise, the imaging magician, must be a master of the tools and craft of post-processing. Just clicking a filter or auto function and being elated or disappointed by the result isn't mastering Photoshop and Elements, it is being entertained. Being entertained can be pleasing at times, but generally it is not how you make a magical image. The tools themselves have no way to see and evaluate the images they work on except as a calculation. They are lifeless props and props never make magic either.

Magicians practice their craft and develop their art, and you will want to do the same to achieve desired results with your post-processing in Photoshop. Changes do not have to be mystical, spectacular or flamboyant to get the most from your images, and post-processing is only a portion of the photographic craft. There is a place for being both the entertainer and the entertained, the magician and the audience. Learn and be awed by other people's craft, but strive to understand the magic of their images like a magician in the audience watching the craft of the magician on stage.

To Learn More
My courses teach the timeless fundamentals for Photoshop and Elements that you'll use as the core of your craft. I talk about magic tools in my Photoshop 101 class...namely the "read my mind" and "do it for me" tools: mythical tools designed in the minds of users hoping there is an easier way. But it is the only mention of magic tools in my courses. You get practical methodology for Correcting and Enhancing Your Images, solid techniques for matching your images on your Monitor and In Print, and advanced exploration of
Layers: Photoshop's Most Powerful Tool. Each is a facet of the tools you have to master to perfect your image editing craft. My latest book, The Adobe Photoshop Layers Book, is the perfect companion to these courses.

Labels: , , , , ,

Sunday, September 23, 2007

When to Upgrade Photoshop

Are You A Photoshop Junkie?
Photoshop junkies are people who religiously upgrade from one version to the next without thinking as if a new release were some type of signal that the current version of the program would soon expire and stop working. Others upgrading without a second thought may believe that owning the newest version of Photoshop automatically makes their images better. Regretfully, "cool" new features may sound enticing, but in the long run these enhancements may be something you rarely use -- or use once in a lifetime -- that isn't a reason to upgrade. The boring reality is that sometimes what you have is really what you need. While it does not carry the social status of owning Photoshop, it is easily possible that Photoshop Elements may serve every need you have even if you are a demanding digital technician (and at a savings of 90% (!) of the cost of Photoshop). Upgrading out of habit, obligation or anything other than a clearly defined need makes you a junkie.



The Truth About Upgrades

It is Adobe's job to make their product compelling enough so that you want to upgrade. In the early years of Photoshop, every version had a significant new feature. Digital imaging had a lot of maturing to do from the first release in 1988, so the room for improvement seemed endless. Now, as Photoshop has matured, the list of enhancements for any version may be as long as your arm, but it may be less clear if you really need to upgrade because features are not always something every user will benefit from.


Richard's Philosophy of Upgrades



  1. Don't automatically upgrade to a new release of Photoshop. You don't owe it to Adobe, and your version of the program will still work months and years from now.

  2. It is not a social embarassment to skip an upgrade version of Photoshop. For example, if you are on CS2 already, you can probably wait for CS4. People may point and wisper under their breath, but how long can they do that for? Just ask them for a compelling reason to upgrade.

  3. Know the Photoshop upgrade cycles. You can count on a new version every 18 months or so. Don't get the last version after it's been out 17 months when it suddenly goes 'on sale' or you'll be looking and yearing to get the next version in a month all over again.

  4. Don't be swept away by the hype of the 'cool' factor of new Photoshop tools. Advertising can make features look more promising than they are. Find out what tools and functions actually do by reading reviews before you upgrade, and weigh how much you think you'll actually use them.

  5. Find at least two actual must-have features in any new Photoshop upgrade that will save you time, effort or improve image quality on a daily basis before considering an upgrade.

  6. Don't upgrade if there are a significant number of tools and features that you already don't know how to use. Learn the tools you have. New features will take weeks, months and perhaps years to incorporate into your workflow. Give them time to sink in before looking for more features you won't use.

  7. Find out about system requirements and compatabilities BEFORE you purchase a Photoshop upgrade. If you purchase a version that requires a new operating system, it may trigger a reaction where you'll have to buy a whole new system at many times the cost of the upgrade just to run it.

  8. Just because it costs more doesn't mean it does more for you. Know what you are buying. For example, don't get the extended version of Photoshop CS3 instead of the vanilla version if you have no interest in medical imaging, 3D modeling and video editing.


Adobe has consistently put out an enticing product that gives users a real reason to upgrade. Adobe does work hard at it, they have a fabulous, well-tested product, and have generally productive reasons for upgrading. However, there is no reason to feel pressured, rushed or obligated. The new version will be there when you are ready for it, and your old, tried and tested techniques for image editing will not soon be worn out and displaced by the latest tool if you learn the right techniques. The real task is to learn the right techniques and theory to make your image editing efforts less tool-centric.





A Short List of Photoshop Enhancements by Version


This is an extremely abbreviated list of enhancements for Photoshop versions. Versions 2 through 7 list the major enhancements only. CS versions are listed in greater detail so it will be evident what was added in the newer versions and what you may gain by upgrading from prior versions.


  • Photoshop 2 (no, not CS2, Photoshop 2.0 released in 1991) added Paths

  • Photoshop 2.5 added a Windows version

  • Photoshop 3 added Layers (which makes my Leveraging Layers course possible)

  • Photoshop 4 added recordable Actions

  • Photoshop 5 added editable type, the History palette, and the dreaded Color Management

  • Photoshop 5.5 added Image Ready for web development

  • Phtooshop 6 enhanced the user interface, added layer styles and Blending Options dialog, and 16-bit editing

  • Photoshop 7 introduced the Healing brush, paint engine enhancements, and introduced RAW image handling

Note: At this point Photoshop broke into the CS versions, the first of which was released on October of 2003. As more users still own these versions I'll use more comprehensive (but still partial) lists...


  • Photoshop CS (8) added:
    — Camera RAW 2.x

    — Highly modified "Slice Tool"

    — Shadow/Highlight command

    — Match Color command

    — Lens Blur filter

    — Smart Guides

    — Real-Time Histogram

    — Detection and refusal to print scanned images of various banknotes[2]

    — Macrovision copy protection based on Safecast DRM technology


  • Photoshop CS2 (9) added:
    — Camera RAW 3.x

    — Smart Objects

    — Image Warp

    — Spot healing brush

    — Red-Eye tool

    — Lens Correction filter

    — Smart Sharpen

    — Smart Guides

    — Vanishing Point

    — Better memory management on 64-bit PowerPC G5 Macintosh machines running Mac OS X
    10.4

    — High dynamic range imaging (HDRI) support (32 bit per channel floating point)

    — Scripting support for JavaScript and other languages

    — More smudging options, such as "Scattering"

    — Modified layer selection, such as ability to select more than one layer.


  • Photoshop CS3 (10) added:
    — Smart Filters

    — Quick Selection and Refine Edge tools

    — Advanced compositing

    — Streamlined interface

    — Better raw image processing

    — Improved Adobe Bridge

    — Enhanced Vanishing Point

    — Enhanced 32-bit HDR support

    — Peak performance

    — Black-and-white conversion

Note: The waters get further muddied here by a release of more than one version of CS3; CS3 and CS3 Extended.


Labels: , ,

Monday, September 03, 2007

Building the Ultimate Image Editing Computer

As a Photoshop professional and author of Photoshop and Elements books, people looking to buy a computer to use for image editing often ask my opinion about what I recommend. I use Mac as my main work station, and have a PC laptop. Though Mac is a preference for me, I think the platform isn't as critical a decision for image editing as it once was. However the peripherals and accessories I put into my 'ultimate system' whether on mac or PC can be fairly extensive and. To me, the additional expense is not only unavoidable, but essential to handling image safely and getting the best results. All the items I choose are not necessary for every system and all level of user, and some of your personal preferences may differ. But some core elements should be considered beyond just the platform to enhance your image editing experience.

The following are all part of my main work station:

*Dual, matching monitors

*Spyder monitor calibrator

*2+ GB of RAM

*4 matching hard drives

*dual core processor

*Kensington Turbomouse

*DVD Writer

*External backup drive

*Card reader

*Power backup system

Keep in mind that for my work with professional photographers I need a lot of processing oomph. If you are a more casual user you may not really need all this stuff, and some of that is personal preference. But here is a breakdown of what advantages each of these provides:

Dual, Matching Monitors
Dual monitors provide a lot of visible landscape, generally at a fraction of the cost of a larger monitor. Another option may be a very large screen, like the 30" Mac Cinema Display, but that is not in the price range of many users. Two monitors may require an additional video card depending on your setup, but really a large monitor may demand an upgrade as well. The goal of increased viewing area is to allow for room to open multiple palettes while viewing your images large on screen.

Spyder monitor calibrator
Monitor calibration is essential for getting good results with your images consistently, in print and on the web. If you don't calibrate, your monitor color may be off, and you can't possibly trust what you see on screen. Dark monitors will find you overcorrecting images and thee results will be light in print; monitors with a color shift will find you compensating toward the shift's complement color -- a monitor with too much red may find your prints consistently leaning toward a cyan hue. Hardware calibration can measure thee color on your screen with great accuracy and will be the cornerstone of good color practice and workflow.

2+ GB of RAM
One of many complaints I hear from users as they upgrade to new versions of Photoshop and Elements has to do with the program running slower. Often running slower can be attributed to keeping an old system and trying to run a more demanding program with the same equipment. Current system requirements for Photoshop suggest a minimum of 512 MB of RAM, this is in addition to what you need for your operating system (Windows Vista requires 1GB of RAM), and really the size of your images. There is almost never too much RAM and you may want 4GB to stay ahead of the curve.

4 matching hard drives
I use 4 hard drives on my system: 1 for system/programs, 2 for images/work in a RAID array, 1 more for a dedicated scratch disk. Drives should all be fast, and it is handy to have them in matching size and manufacture so you can swap them out in emergencies (e.g., for example if one drive in your RAID goes out, you can sub in the scratch disk while waiting for a replacement). Keeping work separate from your programs allows you to run a RAID array to make instantaneous backup of your work to protect you from losing anything. A dedicated scratch disk allows photoshop plenty of room to scale its memory needs without conflicting with image saves and program activity. A RAID can easily be set up on a Mac; PCs will require additional software.,

dual core processor
Photoshop is a processing and memory hog, and having a fast processor at the core is essential for peak performance. Photoshop has been built for a long time to handle dual core processing, and that capability leads to less wait and more productivity.

Kensington Turbomouse
There are various input devices to choose from, and my input of choice is a Kensington Turbomouse, and has been for many years. Mice require a lot of wrist movement and potential strain, and Wacom tablets while interesting and unique, do not provide the kind of accuracy and control I can get with a trackball (try stopping in the middle of a stroke with a graphics pen, for example). The trackball is really a huge inverted mouse with the advantage that it never needs to be moved, takes up little desk space and offers the ultimate in control of your cursor. Don't get a flimsy trackball with a small controller...it just isn't the same.

DVD Writer
As images mount on your drives you will eventually need to back them up to make room for new ones. One of your best long-term options for high capacity storage/archive are DVDs, which offer about 6 times the space of a CD. They are also quite durable, and likely your best option currently for image archive and storage.

external backup drive
For daily or weekly backup, to keep your current work safe should you experience some type of computer meltdown, you can make use of an external drive with at least the same storage capacity as your work drives. Doubling the capacity will allow you to retain the original backups while making the new, and considering the low cost of hard drive space these days, a single large backup drive will save you infinite worry and offer the capability to restore work easily.

card reader
A device that I have found to have ultimate utility on the road as well as for daily download of images is my portable Wolvarine drive. It sports additional slots for a variety of card types, and an 80GB capacity which allows me to take approximately 12,000 photos before having to touch base with my main desktop. It has an internal power pack so it can operate anywhere, and attachments for car lighter plugs. Great for backing up cards on the road, and reading them into the computer.

Power backup system
Power backup allows you to stave off the ultimate, unpredictable catastrophe: power loss. Power can go out at any time, and some types of power/surge protectors offer surge protection and full switched power that automatically stores and kicks in during a power outage. A must if you live in an area where unpredictable power outages occur.

Of course, my image editing program of choice is Photoshop, but Photoshop Elements is often just as good for most users who will never need the additional non-photo-editing features (CMYK generation, Actions/Scripting, Web development tools). Some of this list is equipment you can accumulate and reuse between systems as you upgrade.

You may notice the glaring omission of a home printer. I am not big on printing at home, and send everything to a service. To get the equipment I’d want for that I figure I am saving about $80,000 in a printer cost which I assume is worth it ;-). You can also save yourself the headaches associated with maintaining supplies and printer maintenance. I discuss this in a lot more detail in my From Monitor to Print: Photoshop Color Workflow course.

If you are looking for the ultimate system for editing images, or even to begin upgrading as you begin to take image editing more seriously, this list of key components should prove helpful in your consideration of building the ultimate system. I'd be glad to answer additional questions on the subject (Contact Richard: richard@betterphoto.com)

Labels: , , , ,

Monday, July 30, 2007

The Adobe Photoshop Layers Book Released!

I am pleased to announce that my new book The Adobe Photoshop Layers Book was officially released today! This book is the first of its kind, focusing on Layers -- Photoshop's most powerful tool. It is a great companion to my successful online course: Leveraging Layers: Photoshop's Most Powerful Tool.

I quick reminder that my two new 4-week betterphoto courses start this Wednesday (August 1):

* Photoshop Color Workflow -- helps you get a handle on making your prints match what you see on your monitor by standardizing your workflow.
* Correct and Enhance Your Images -- helps you make any image better by showing you a standard approach to take in correcting and enhancing images to make them their best.

I hope you will support me in checking out the new book!

Labels: , ,

Saturday, July 21, 2007

Choosing an Image Editing Program

Question:
Where can I find in-depth, unbiased reviews of software for photographers? I have looked on the net but what I mostly find are pretty abbreviated descriptions. No real in depth analysis and suggestion of what works well together.

Short Answer:
All reviews are biased; you are your own best reviewer.

Long Answer:
Any review of software is necessarily biased. Asking this question of me you will likely find my preference for Photoshop and Elements, but I'll do what I can to make sense first.

Reviewers need to be familiar with software to do a good, in-depth review. This usually means reviewers have to be users of what they review, which forms a bias. There are many packages on the market, some more and less obscure. Popular packages like Photoshop, Photoshop Elements, Lightroom, Aperture, Paint Shop Pro, Corel Draw, and GIMP all have their supporters. But even somewhat more obscure packages like Microsoft's Digital Image Editing Suite, PhotoImpact and Photoline32, can be substantially powerful options for image editing and show pockets of advocates. It has been my experience that many of these programs can function reliably at a high level. There are likely other programs as well.

What really makes an image editing software package "the best" is what makes it the best for you and your needs. If you are looking for full-featured image editing, many of the packages will provide what you need with a variety of different abilities and tools--some of these options may have been packaged with your camera (Photoshop Elements is popular as software bundled with digital cameras and scanners). If you are looking for a robust package that will handle web graphics, animation, video editing, vector graphics/type and multiple file formats, you may have no other choice than Photoshop. If you are looking for ease-of-use and quality results, then you may want to consider looking at newer programs specifically designed to provide easier image-editing solutions, like Lightroom or Aperture.

Ultimately, if you are looking for an opinion that will absolutely tell you which is best, it won't happen. Your choice should be based on your needs and interests, with a nod to the popularity of the package. Package popularity becomes important when it comes to finding help, tutorials, courses and additional support. Where there are lots of users, there are lots of tutorials and help.

I prefer Photoshop and Elements because I use them, and have for a very long time. I have an aging comparison page that looks at Photoshop vs. Elements vs. Paintshop Pro:
http://www.graphic-design.com/Photoshop/vs_elements.html
These are three programs that I have used and have written about. A lot of the information still holds true.

As far as 'what works well together', I like to keep it simple, and stick to one program that covers it all. To me that is Photoshop OR Photoshop Elements. Using either of those, I can steer away from plugins and add-ons by using a full featured program that doesn't require integration. I do have exceptions for add-ons that I have made myself that extend the functionality/ease-of-use of Elements and Photoshop. Other hardware would include an additional monitor and video card, trackball, and calibration device. You really shouldn't need several software packages to get your image editing done, unless you like the added complexity. For every software package and plugin you add, you increase the learning curve. If you are having trouble doing a particular task, it may not be the image editing program that has to be changed, and you may not really do any better adding a plug-in that promises to 'do it for you' : it may be that you will need to change your approach to tasks, and changing your approach to tasks may be facilitated by learning more about the program (through the Help feature, tutorials, and possibly books and courses). Learning from others can save tremendous amounts of time.

Postscripts:
* Richard now teaches 4 courses on betterphoto.com
  1. A beginner-level introduction to Photoshop: Photoshop 101

  2. An intermediate-level course for mastering color management Color Management for Digital Photographers

  3. A second intermediate-level course dedicated to core imaging techniques Correct and Enhance Your Images

  4. And an advanced-level, specialized focus on using layers Leveraging Layers: Photoshop's Most Powerful Tool

* Richard's new book The Adobe Photoshop Layers Book will be out at the end of July!

* Listen to Richard talk about image editing in a recent two-part interview with Jim Miotke on BetterPhoto Radio: Part 1, Part 2

Labels: , , , ,

Tuesday, June 19, 2007

What Color Space Do I Use (Part 2)

[Continued from Part 1]
In the previous entry in this blog, I discussed some of the theory involved in choosing a color space. Let's look at my current workflow as an example.

My Choices
I choose to use an AdobeRGB (camera)>sRGB (convert to sRGB in Photoshop)>sRGB (add an sRGB profile to send to print) workflow for what I believe are sensible reasons based on my long experience in digital imaging.

I capture in AdobeRGB for a few reasons:

*I have a high-bit digital image sensor that captures at least 12-bits -- or 16 times the number of colors captured in 8-bit images. With 16 times the number of colors as 8-bit, most or all of the 8-bit sRGB colors will be captured If a few are not, I’ll never know.
*The added range may come in handy at some point when technology becomes enhanced and if not, conversion to 8-bit RGB for output should not create much unusable color.

On the other hand, I work in sRGB as a working space for several reasons:

*I like the concept of working with color in ranges that can be properly displayed on my monitor.
*I seldom output to CMYK, but instead use light-process (LED/color laser) printing.
*The process and service I use all the time requests sRGB files, and tests with AdobeRGB have proven the service’s request to be right--for this closed system.
*sRGB is a broadly-used 'default' color standard, that even in systems where profiling fails to make a good translation, the results are within a predictable range. AdobeRGB images where the profile is dropped will usually desaturate drastically. I don't want that problem for the small potential benefit.
*I am not sure that I can define it as a benefit when "better images" would mean NOT matching what I see on screen...I'd have to define it as luck.

I print to light process as it is more efficient than using ink, and the results are closer to what I see on my monitor, as well as more durable.

My closed process (closed, meaning I just about always do the same thing) ending with a need for RGB dictates most of the rest of the workflow, and my decided preference for seeing all the color I work on, solidifies the outline. One of the keys to any successful workflow is testing, which means taking an image and trying to process it both ways, and seeing if the result is better either way. "Better" to me can only be defined by the ability to match the screen...and that really eliminates AdobeRGB as a benefit, as if I can't see the colors that Adobe RGB can produce, any benefit of additional color – beyond what I see on screen -- would naturally not match.

All that said, if you are more adventurous than me and don't mind working on color that you will not see on your monitor, an AdobeRGB workflow may be adopted and used with success mostly in a closed workflow where results go to a CMYK printer. However, should the AdobeRGB workflow be adopted, you will need to be diligent about following the process and being sure the profiles are not dropped, or the result will be a sometimes serious desaturation and compression of dynamic range. This happens because when a profile is dropped (or if it is not included on save), devices will likely assume an sRGB profile, or something very close, and remap the colors in the image: the 'broader' range of colors is mashed down into the 'smaller' space and the result is less impressive than just starting with sRGB and sticking with it. Also, images with AdobeRGB profiles posted to the web either using browsers that do not recognize profiles, or which drop profiles as part of processing will result in the same desaturation and loss of dynamic range.

Why Do I choose This?
My conclusion to this point is that I can certainly get an AdobeRGB workflow to produce results, but I am not convinced that these are 'better' – and I am not convinced that the added risk of color trouble is worth the potential gain. AdobeRGB images may be brighter in print, and in some cases may show a difference, but that surprise may not be accurate in the sense that what you see on your monitor is NOT what you get in print. Things may change in the future, but now, with the broad popularity of the RGB workflow (having shifted with the advent of digital cameras and inkjet printing conversions), sRGB seems a more stable and reliable flow. That may change at some time in the future.

Your Choices
If you have read all the way through this entry and the last, hopefully the sense of this comes through. You can get results with either color space –- or other color spaces not mentioned. But what you choose to use needs to make sense to you, to where your images originate, the processes you choose, and those choices need to blend with your workflow rather than being considered as independent. My considered opinion is that my workflow is best –- for ME. Yours may be different, but hopefully you have made your choices for good reason. If you have not calibrated your monitor, have no real concept of how to make the best corrections to your images, and don’t make other sensible choices in your digital imaging, don’t be quick to blame your color space. There is more to making good images than choosing a color space.

Those are all considerations for a latter blog entry.

Postscript
If you have enjoyed this entry or found it useful, you might like my new book The Adobe Photoshop Layers Book. It will be out in July of 2007!

Labels: , , , , ,

Sunday, May 06, 2007

What Color Space Do I Use? (Part 1)

Question:
I've been trying to come to terms with color management and working color space. What color space do you use, and which is best?

Answer:
Short Answer: I use sRGB. There is not really a 'best' color space, though I find sRGB best and most consistent for what I do.

Color spaces are confusing to most people, and become a heady topic for debate. It is good to know at least the basics before making a choice between which to use. I have my preferences after 15 years of working with digital color, and they have changed with the technology...but let's look at some concepts. In part two of this entry, I'll add in a discussion of why I choose the color management settings that I do.

The "Best" Way...
Working color spaces have trade-offs and advantages, or there wouldn't be choices. If there were a 'best way' to handle color it would likely be handled automatically (e.g., Adobe would put best practices in place programmatically). I consider sRGB as a "realist" color space. It is based on standard monitor display--you deal with colors that can be safely seen on screen (16 million of them in 8-bit). AdobeRGB portends to make color that is better apt for printing--it extends beyond the model of colors you can safely see on your monitor to map colors available in print that are not 'seen' on a monitor (also 16-million in 8-bit). The fallback of sRGB is that it doesn't have a representation of a broader color set. AdobeRGB is said to have a 'broader' color model, but most people don't know what that means: to me it means the set number of colors is mapped differently--not that there are more or even necessarily 'better' colors. People do a LOT of arguing about the potential advantages of using either sRGB or AdobeRGB as a working color space.

In a perfectly theoretical arena, you'd want to work with images in optimal conditions: colors that you would be able to see on screen would readily translate into print. There-in lies the rub. RGB and CMYK reproduce different color sets. RGB is color theory based on light where red, green and blue make up all the potential colors on your monitor; CMYK is color theory based on ABSORPTION of light, as inks of cyan, magenta, yellow and black that represent all colors in print. While slightly over-simplifying here, RGB favors reds, greens and blues to the slight failing in representation of cyan, magenta and yellow. CMYK favors cyan, magenta and yellow with a failure in being able to represent the brightest reds, greens and blues. Though CMYK has an additional 'color' (black), it does not add representation to the theoretical space: black is added to compensate for the inability of ink to be perfectly efficient in absorption...black helps compensate the CMY model so that it will have a full dynamic range. Such things as the physical properties of the ink, paper, and available light will contribute to the lack of perfect performance in ink absorption. All this really means is: the colors represented by CMYK and RGB are different, and what you see on your monitor is not the same as what printing in CMYK can represent.

Making Compensation
There are all sorts of ways that technology tries to compensate for the difference, such as providing printers with additional colors, or allowing translation using color mappings and embedded profiles. Adobe claims that AdobeRGB is a better model in representing the potential of CMYK, because it maps to more CMYK colors than sRGB. It is generally argued that AdobeRGB is more geared to printing images because of its mapping to print colors and that sRGB is better on screen based on its mapping for colors associated with monitor display. The idea is intreguing, in that the color sets promise to allow you to do more direct correction of assoviated colors optimized for a particular use. Yet the reality is, just like RGB and CMYK have different colors, you can't see AdobeRGB color with reliability on an RGB screen...it becomes a conundrum. One solution used to lie in converting to CMYK and that works for those doing certain types of printing, but is really not as helpful for most people who just send images to a service, or run them out on a home inkjet.

There are practice of using color profiles (and embedding them in your images) helps describe the color in an image to different devices, acting like a type of translator. If you work in a color space and place a profile in your image, the THEORY is that you will be able to send that file to other devices (printers, monitors) that will recognize the color mapping and interpret it correctly. Once the device can interpret the color, in theory it shouldn't matter what color space it is in: If the colors can be translated and interpreted, the results should have a reasonable chance of matching.

The problem becomes defining what is supposed to be matched. If you are in sRGB, and you match what it looks like on screen, that may make sense, but using Adobe RGB if you match what is on screen you aren't taking advantage of the broader color space; if you match what is not on screen, you can't ever see what you are adjusting. But the problems just start there whether you use sRGB or AdobeRGB. Add to the problem the fact that not everything prints as CMYK. If AdobeRGB gives you better CMYK and you print to a light process or display images on the web, it may not really offer an advantage. Another issue is the reality that color management theory doesn't always work in the real world: profiles can get dropped (intentionally or not) or remain unused by devices. When you consider the world might not be perfect, you have a better picture of the real mess and why color management becomes such an issue for debate. One person swears by how they achieved success in their workflow and another opposes as they achieved success a completely different way. The fact is that they may both be right, either for the right or wrong reasons.

And the Answer Is?
So the answer to the question of whether you should use one working space or another is: either sRGB or AdobeRGB can work...but you need to accept the advantages and disadvantages of either workflow. Which will work better for you may be answered by taking a look at your workflow as an entire process. That is, based on how you work with images, your choices for what is best in adopting a workflow should be based on what you do with images, rather than what someone else does--whether or not they do it with success. In the next entry we'll look at the workflow I use and why I've made the choices I have to give you a peek into a considered workflow.

POSTSCRIPT
I've just finished writing my new book The Adobe Photoshop Layers Book. It will be out in July of 2007.

Labels: , , , ,

Tuesday, April 03, 2007

What Do I Do With Photoshop?

Question:
I am fairly new to Photoshop, but rarely use it because I don't know what to do with an image. In your last blog entry you mentioned having a 'workflow'. I guess you mean by that a process to follow when editing images. Can you tell me what I'm supposed to do?

Answer:
Short Answer: Yes. Have a workflow and use it with every image.

Working with images isn't random. You shouldn't just fiddle with some filters and auto-corrections and hope to suddenly stumble on something to make your images look good. What you really want to do is outline a process to follow so you are sure your images will look their best every time.

A good workflow takes setup into account as well as image correction.

  1. Calibrate your monitor, create an ICC profile, and make color management decisions
  2. Store your original images safely
  3. Evaluate the image (composition color and tone) to develop a list of things to correct (in steps 4-8)
  4. Make general color and tone corrections
  5. Make small damage corrections (dust, etc.)
  6. Make composition changes (cropping, replacing, removing objects...other 'heroic' measures)
  7. Make targeted color and tone corrections.
  8. Add enhancements (soft-focus, sharpening, etc.)
  9. Save the working/layered version of the working image
  10. Save a purposed/final image for output/use

Even long-term users of Photoshop may not have a sensible workflow in place, but the fact is that it can save tons of time and account for consistent results.If asked which is the most important of the 10 items above...I'd have to say you need every one of them to get the most out of your images. If you are missing any of them, you'll want to consider adding them to your workflow.
  • Calibration and color mangement decisions can greatly affect your outcome
  • Storing your images is essential to ward off data loss
  • Evaluating an image tells you what to do and keeps you on track with corrections
  • Having an order to your corrections helps you correct logically so you aren't taking on the wrong issue at the wrong time (color correcting a hat that is the wrong color before color correcting the whole image makes no sense)
  • Storing your layered work can save tons of time in making later changes or enhancements
  • Saving your final image separately allows you to make the best image for any purpose (e.g., a downsized JPEG for the Web, a full-sized EPS or TIFF for print)

With a workflow established, you'll never be puzzled about what to do with your images and you'll be ready to explore them the same way every time, checking over your list so nothing gets missed.

I teach a course on betterphoto.com that will help with workflow issues. It is called From Monitor To Print, and helps you establish a full workflow, covering all 10 items in the list. You can find the course here:
http://www.betterphoto.com/photocourses/RIC01.asp

If you are simply uncomfortable with Photoshop, you may need even more basic help, which I can provide in my Photoshop 101 course, found here:
http://www.betterphoto.com/photocourses/RIC03.asp

But whether you take a course or not, take notes on what you want to do and establish a workflow. It will save you time, and probably money as well!

Labels: , , ,

Sunday, March 18, 2007

Learning Photoshop

Question:
What is the best way to learn Photoshop?

Answer:
Short answer: There is not one 'best way'.

Many people are daunted by trying to learn Photoshop. There are hundreds of tools and infinite possibilities. Infinite. You can pick an image and do anything with it...even create an entirely different scene. But the point of working with images would seem to be to improve what you have taken, and not to turn a picture of a cat into an elephant (by applying the "turn this into an Elephant" filter, of course!). Most people will not expect to accomplish such transmogrification, and what would be the point when you could make the result simpler with a visit to the local zoo?

One of the reasons users find Photoshop daunting is that they try to learn too much—or even all of it—at once. A better approach for most people will be to learn a-tool-at-a-time. Pick a tool, read about the tool in Photoshop or Elements Help (press Command+/ or Ctrl+/ [mac/pc]), then open an image and explore the tool by applying it. Don’t look so much for expert results as the opportunity to learn how the tool behaves. That experience will go a long way toward incorporating it into your workflow. 15 or 20 minutes a day puts a new tool into your belt.

Further, and following this line of logic, you can limit the tools you look at to only those that are more practical for what you want to do. If you will be working with digital photographs for the sake of editing and improving them, you can virtually ignore whole sets of tools, and in the case of Photoshop, an entire application (Image Ready). in my courses and books I have a list of 30 or so core functions and tools that you can pretty much expect to incorporate into your work with any image. Some of these are terribly obvious, like Open and Save, but you quickly get into the heart of a tool set that helps you stay focused on correction and the task at hand. People hem and haw about Curves and how important they are to correction, and honestly I think they are a bit of a hack the way it is often described to use them, and at this point in my editing I rarely use them at all. Levels are a far more accurate and useful tool, except in specific circumstances. But the point is that with a significantly limited set of tools, you can accomplish what you need to in editing almost any image...as long as you know which to use.

That said, some people will find books most helpful, some DVDs, some online courses, some live seminars, a rare few personalized instruction, and others just poking about in the program. Having learned Photoshop at a time where there were no books or tutorials, I would suggest that poking around can be effective, but it is likely to be the slowest method of learning unless you already have a lot of digital imaging experience with another program. Any one of the products that help you learn Photoshop will likely cut months and years off learning. Here are a few things that will help:

1. Get acquainted with the interface. Learn about palettes and menus and where the tools are stored. ( See my Photoshop 101 course on betterphoto.com for an outline).

2. Have a goal in mind when opening Photoshop rather than just hoping it will do something for you or that you will suddenly feel inspired. Do you want to improve images from a recent shoot? Learn color correction? create a new logo? The answer to the question "what do I want to do?" will give you direction and save time.

3. Take a note from your own learning history and follow the path that has been most successful for you in other endeavors. If you have been successful learning in a classroom, take a course; if you learn from books, take a look at the books in a local store and see what looks most interesting to you.

4. Don't expect to be an expert overnight. Personally I have been using Photoshop daily for about 15 years. I learn something new every day. It could be about the program, about my images, about seeing, composition, settings, whatever...but there is always something new in thee program as long as I allow myself to see it. Becoming an expert will likely take months or years.

5. Establish a base workflow, including a solid color management setup, good step-by-step correction practices, and test your output. You will be following a similar set of steps for most images unless you will be doing a lot of work to them. Outline your process or borrow someone elses (see my Workflow course on betterphoto.com).

6. Experiment with limitations. Don't give your self open-ended amounts of time to try and achieve an effect by applying filters willy-nilly. Again, have an idea of what you want to achieve, and allow yourself 10-15 minutes to experiment with a result rather than running all over with it. At the end of the time, post the image to a Photoshop forum somewhere and ask for help in what you want to achieve. Try my forums found through http://hiddenelements.com

I hope that helps people get on track toward learning Photoshop in their own way. If you have questions feel free to send them for future editions of the blog. Send to Richard Lynch thebookdoc@aol.com

Labels: , , , , ,

Friday, February 16, 2007

Input Devices: Wacom Tablet, Mouse or Trackball for Image Editing

Question:
I am considering a Wacom tablet. Do you use one? If so, do you recommend it for image editing?

Answer:
Short Answer: I use a trackball by choice for all image editing.

I was once allowed by a former employer to sample about every device known on the market for input. The range included cordless, optical mice, tablets/pens and trackballs of all shape and size. I ended up the beneficiary of some experience that is hard to get otherwise, and my image editing likely improved because of it. By the end, I'd selected the Kensington Turbo Mouse (http://aps8.com/kensington.html) as my input of choice above tablets and any mega-mouse you could find. I still use the device for digital photo-editing work to this day, though in a newer and even better model. I don't know that a trackball is the solution for everyone, but for my skills and experience, this item is better.

Just to review the benefits of a trackball as I see them:

1) They don't require lift-and-move motions like a mouse, so they are easy on the wrist, and likely help keep you from getting carpal tunnel or other computer stress syndromes.

2) They have a small footprint on your work desk, don't need to move, and don't require a mouse pad, so they take up little desk space, and can always be found where you last left them (even in the dark). You don't ever fuss with wires, so being wireless is redundant.

3) The large ball on the Kensington device offers stability and control that you will not get in devices that have smaller controllers. The software has a very neat variable speed option which lets you slow the cursor movement as the ball speed slows. A big, slow ball means pixel by pixel pinpoint accuracy--and you can rest between or during moves (unlike with a pen).

4) Maintenance/cleaning requirements are near nill. Tip it over to get the ball out, and blow. Replace the ball and you are ready to go.

5) The replacement and service for Kensington products is excellent (the one time I had a problem after 5 years of service, the item was completely replaced with a new device).

6) I am not drawing oriented. If I were I would likely draw more often. I take pictures because I don't draw as well as I'd like, and likely that is because I am not so good with a pen/pencil. Pens seem unstable and difficult to control to me.

7) There are four programmable buttons and chords (combinations of buttons) that allow you to assign custom commands and menu calls for customization.

Don't be fooled by cheap immitations. I was. I'd used bad trackballs before my testing and thought they were completely useless devices. Regretfully the ones I used were stiff, small and inaccurate. With the Kensington I have great control and comfort. When my daughter was 3, I had both the mouse and trackball hooked to the machine, and once she knew how to use both, she always used the trackball...It isn't a great study, but I think it says something. The only thing a tablet can really do that my trackball can't is pressure control, and while I see that it could be useful to those with artistic skills in drawing, it isn't, again, for me.

I have been using a Kensington since 1995, and I have sampled new devices and even other Kensington products, but nothing has swayed me from the Turbo Mouse. I highly recommend it!

PS -- My courses are signing up for the Spring semester at betterphoto.com. I'll be teaching From Monitor to Print, Leveraging Layers, and Photoshop 101. New additions from my good friends include: Right-brain Photoshop, by Al Ward and Photographing Fast-Action Sports, by Greg Georges

Labels: , , , , , , , ,

Monday, February 05, 2007

Spot Application of Photoshop / Elements Filters

Question:
Is there a way to spot apply filters?

Answer:
Short Answer: Certainly, several ways -- and the best one.

There are many reasons that you might want to apply spot filtering. For example you might want to sharpen only a portion of your image, or add special effects (glows or color enhancement) in spots to more creative ends. You can apply filters as spot correction just by making a selection and applying the filter, but almost always I want a little more control, and the ability to adjust the changes I made later in the image editing process. As long as you use the right techniques, any filter or filter combination can be applied to spots in the image rather than the entire thing, and you can make adjustments whenever you want.

Filters are mostly mathematical calculations that have to be applied to content in the image. They look at content, and make a change based on how the calculations are set up behind the scenes, sometimes dependent on user input (the filter controls). When you apply filters, you have to apply them directly to content, or nothing will happen. That is, if you just create a layer and apply the filter, the layer is blank, so the filter has nothing to calculate. In that case you won't see any change. On the other hand if you have an image with a lot of layers, you can't apply the filter to one layer and have it necessarily effect every part of the image.

What you have to do to apply the filter correctly is create what I call a layer snapshot...collect all the image information you see in a layer and then apply the filter to that. Once the filter application is in its own layer, you can mask it however you want to spot apply the filter changes.

To use filters on a layer you have to do something like the following:
1. create a new layer, and name it Layer Snapshot 1
2. stamp visible to the new layer (ctrl+shift+alt+E)
3. apply the filter and re-name the layer as appropriate

Step 3, stamping visible, collects all the currently visible parts of the image into the target layer. You need to do this type of collection every time you have several layers producing a result and you need to work on ALL of the content of the image. While the visible image does not change, the change in the image is an important one: everything you saw in the image is collected into one source layer. Once the content is collected, you can apply a filter directly to all of it -- even if before it was scattered on different layers (with different modes, styles etc.).

You can use these layers to spot apply filters if you combine them with masking. For example, after the filter is applied to all of the content, you can mask the layer (either using layer clipping or Hidden Power tools for those with Elements [ http://hiddenelements.com ], or layer masks for those with Photoshop) to limit where the filter is applied.

I would apply different filters to different snapshot layers so that you have separate control over each. Using the layer snapshot and masking techniques should give you ultimate control over the result.

PS - My Photoshop 101 course on betterphoto.com is starting in a few days:
http://www.betterphoto.com/photocourses/RIC03.asp

Al Ward, master of the special effect in Photoshop, will be starting a brand-new course on betterphoto: Right-Brain Photoshop. It starts in just a few days!

http://www.betterphoto.com/courseOverview.asp?cspID=155

Labels: , , , ,

Thursday, January 25, 2007

Calibrating My Home Printer

Question:
I am struggling a lot with thee idea of color management and how it is best to approach it. I am not completely happy with my home printing results. I think I need printer profiling. I can have a printer profile made for $40 each, but I've also considered packages like X-Rite that cost about $1,000. What is the best route to take?

Answer:
Short Answer: I wouldn't do either.

One of the strangest things occurred to me several years ago when I was asked about how I process my images. At the time I was working on my fourth book, after years of doing digital processing and even working pre-press. I had a calibration device, gave people advice, made prints for shows...and my main workstation didn't even have a printer connected to it. In fact, I had a printer or two still in boxs that I never bothered to open. It may seem downright unnatural, but to me there is no need for a printer.

Now, that may seem strange at first, but there is a good reason why I don't have any printing equipment running. I am in the habit, and I think it is a good one, of sending my work out to be printed at a service. To me this has many advantages, not the least of which are cost, convenience, and consistency. These three C's may be a little different than the way most people look at them who are considering working with printers at home, but hear me out.

I use a service for image output and forgo the color profiling for the printer, printer cost, paper expense and maintenance entirely. I save time conceptually and actually not having to worry about issues of profiling for specific paper types, calibrating the monitor, and maintaining the additional software/hardware. I get to print on the most expensive equipment around (these are machines you would never buy for the home) for virtual pennies, and I lose all of the headache that goes with having my own printer, buying and maintaining supplies, potential for maintenance and repair, and finding a place to put it in my office. As long as I go with a good service (that calibrates regularly and uses top-notch equipment, processes, materials, and is responsible for mistakes), my result should be better than I could ever achieve at home.

If you look at cost alone in the proposed scenario, I save $1000 on the X-Rite, another $500 on a top notch home printer, more on paper and inks...and with a few inexpensive tests I can upload images to my service via ftp with confidence in the results, and have far more flexibility for sizing and format than I would at home. In other words, the $1500+ budget for my printer and supplies is something I spend directly on prints instead, without the hassles and headaches, and responsibility for keeping the equipment at peak performance. I am also not fussing with shopping for paper sales, and keeping a stock on hand. I don't have to have a paper cutter...and I am not limited to a smaller size print.

Each print may cost a little more if you look at it as materials alone (paper and ink--though the machines I print on don't use ink). The actual difference is pretty slight. But let's not forget the difference in equipment costs between using a service and printing at home in this scenario: $0 and $1500. It would take me a while to spend that $1500+ dollars in prints, and meanwhile it is earning extra money in interest, or I can invest it in other equipment. At the same time, I might never match the quality of the prints I get at the service, where I get beautiful, digital LED photographic prints on quality photographic paper. I am never longing to upgrade to the next better printer that comes down the pike, I don't have to read articles about home printer technologies, and I can rely on the service to absorb those periodic equipment upgrade expenses.

So, while I am probably fully qualified to run a printer at home and coulkd probably get good results, working without a printer, I can focus on what I do best -- working with my images and focusing on the capture and editing process.

Labels: , , , ,

Monday, January 15, 2007

Selling My Prints

Question:
I'm looking for a Gallery with a sales function that will take care of the orders, collection, printing, and shipping to get started selling my images. There just does not seem to be a photo site that has "everything" for a reasonable price/commission.

Answer:
The short answer: You may have to take matters in your own hands.

I don't know of a site that will provide everything from genuine sales opportunities to printing and drop shipping. It is an interesting idea, but I don't know if it is entirely practical from a business standpoint. First, you are asking the business owner to specialize in a lot of things, spanning web commerce, understanding of the market for arts, and knowledge of printing. Second, there is an awful lot of risk in taking on that challenge. Risk comes with a price, and that is why as you get closer to your ideal the services cost more.

A photo gallery site might have a technical web expertise and that might not correspond to having much knowledge of print at all. The site would expose themselves a risk to offer print services for redistribution, unless they were already a service or partnered with one. If you submit files that are not correct and haven't been tested and the service prints them, you will blame the service...and the service will either have to wrangle with disputes, or publish an almost irrational disclaimer. It may be a risk no portfolio-type site is currently willing to take for minimal profits that they'd make on the prints if they job them out, or the investment they'd need to make in printing equipment to provide the necessary services.

On the other hand, if you post your images for sale on a commission-free site ( see http://thefineartoriginals.com for example ), you'd be able to post your images for sale, collect your fees through any service like paypal ( http://www.paypal.com ), and choose any printing service you like to fulfil the job ( I use http://www.color-tech.com which will drop ship ). I send in images via FTP and have tested the prints on their equipment so there is no question that those making a purchase will be satisfied.

My suggestion may be one or two more steps than you'd prefer to take on your own, but you can get started for almost nothing, and you will have better control and understanding of the process -- and ultimately YOU reap more rewards from your sales. As distasteful as it is, artists may have to assume some responsibility for sales and marketing, or pay the premium for those services.

Labels: , , , ,

Monday, January 08, 2007

Making Conversions to Infrared

QUESTION:
I have been trying to follow a tutorial for converting my color images to Infrared using Channel Mixer. After moving my Blue slider to said position (-200), the image becomes VERY pixelated and low-res, while the original looked crisp and clean. The magazine mentions nothing about possible pixelation. How can I prevent this ugly pixelation?

ANSWER:
Short answer: You can't. At least not using that exact method with this particular image.

What is probably happening (and this is a PURE GUESS based on looking at the channel information in about 50,000 images and not having seen this image) is that the blue component of the RGB image has some voluminous JPEG artifacts and/or noise present, as sometimes happens, and that is introduced to the result by mixing in the blue component. By going -200 on Blue in the Channel Mixer, it doesn't mean you are removing the influence of the blue component, but you are INVERTING the influence -- and quite strongly. The result will be that any ugliness/damage/compression/artifacts in the blue component will be enhanced in the result.

[ For Elements users, you will need to use at least a component separation to extract RGB or the Hidden Power Channel Mixing tools found on the Hidden Power website http://hiddenelements.com ]

SO, the first thing I would do is check the RGB components and have a good look at the Blue component, and I think you'll see why this technique makes for a bad IR conversion -- at least with that particular image. I have seen images before where the blue component had more compression artifacts than the rest of the components before. You can likely tone it down. For example, you could potentially use a Luminosity and Color (or LAB) conversion to isolate the tone and then perhaps blur the color a little (perhaps not at all). This will lower image color noise.

[ Again, Elements users will probably want to seek the help of Hidden Power tools in making Luminosity and Color separations ]

There are MANY different ways to make an IR conversion, and I have pioneered one myself in my B&W and IR Custom Conversion tool for color images ( see http://hiddenelements.com/elements5_tools.html ). The tool was built for Elements users, but can be used in Photoshop just as well by extracting the files and loading the actions into the Photoshop Actions palette. The places where I think Channel Mixing conversions fail to imitate real infrared is that they don't address standard qualities in IR photos, like black skys, film grain, glowing skin. The conversions may work on one image type and not another, and any conversion that works that was is, more-or-less, an accident that just makes things look a little different than you are used to. Even with compensations, all you get is a mock result: an imitation of infrared and never the equivalent of the real thing.

The only real way to make IR images is to shoot IR exposures, because IR wavelengths are not just a calculation of other image components, they are a completely separate set of qualities that are part-and-parcel of the infrared spectrum. Many digital cameras filter out the IR wavelengths so they don't taint exposure results. Some digital cameras can be modified to remove filters and capture IR light in a more traditional fashion, and/or when used with proper lens filters (e.g., infrared filters that block visible light or key to favor orange or red wavelengths), you may get passible IR results.The results, however, will depend on your camera's ability to capture IR light, as well as the filter you use (more opaque IR filters limit the exposures more to infrared light qualities).

Your end result can only be as good at imitating infrared as your initial capture...or rather it can be better in the end (because you can make heroic adjustments), but you need to have the right info in the initial capture to give you the image information you need to make fabulous infrared images. The choice to filter or not, or modify or not will lead to you needing to use different techniques in adjustment to achieve your desired results. But images with inherent damage (such as a highly compressed blue channel) will likely lead to bad results using any process without further processing to correct the image.

The new Hidden Power Infrared and Custom B&W tool will help you make customized B&W conversions and mock IR. See some sample images with conversions made with the tools here:

http://www.hiddenelements.com/infrared5_tool_samples.htm



Labels: , , ,