Color management problem-Photoshop 7

Have been printing for years with no problems, MAC G4, OS 10.4 to Epson 2400 using Photoshop 7 print controls. Suddenly, the color of my prints are way off. Soft proof in Photoshop looks good, printer preview looks like the bad print. Reloaded the printer software, no change. Made print using Preview (not through Photoshop), print has correct color. Printer OK? Somehow printer is getting wrong profile from Photoshop, or managing on its own even though color control is "off". Any thoughts?

Your list appears incredibly short compared to what I see, missing whole sections...
That could imply that the ProPhoto RGB profile file (and others) are missing from your Windows subfolder for profiles... Check to see if this file exists on your computer:
C:\Windows\System32\spool\drivers\color\ProPhoto.icm
This file is on my Windows 7 x64 Ultimate system. Assuming it's not there on your system, the question then becomes "why not?" Have you uninstalled something after having installed Photoshop CS5?
Check also for the file here; I found another one there on my system.
C:\Program Files (x86)\Common Files\Adobe\Color\Profiles\Recommended\ProPhoto.icm
-Noel

Similar Messages

I have a color management problem. I have OS X v 10.5, Adobe Photoshop Elements 6, and an Epson Stylus Photo R800. I want to print images I have scanned on a Epson Perfection 1660 Photo and corrected in Photoshop and get the colors accurate.

i have a color management problem. I have OS X v 10.5, Adobe Photoshop Elements 6, and an Epson Stylus Photo R800. I want to print images I have scanned on a Epson Perfection 1660 Photo and corrected in Photoshop and get the colors accurate.

I used the ColorSync utility to verify, and it came back with this report:
/Library/Printers/EPSON/InkjetPrinter/PrintingModule/SPR800_Core.plugin/Contents /Resources/ICCProfiles/SPR800 Standard.icc
   Tag 'dmnd': Tag size is not correct.
/Library/Application Support/Adobe/Color/Profiles/Recommended/CoatedFOGRA27.icc
   Tag 'desc': Tag size is not correct.
/Library/Printers/EPSON/InkjetPrinter/ICCProfiles/Standard.profiles/Contents/Res ources/Epson IJ Printer.icc
   Tag 'dmnd': Tag size is not correct.
/Library/Printers/EPSON/InkjetPrinter/PrintingModule/SPR800_Core.plugin/Contents /Resources/
I did not know what to do next. At the bottom of the window it said to go to www.apple.com/colorsync to find a tutorial. I got a message saying that link does not work. Tried to find the tutorial by searching at apple.com, but could not seem to locate it. Does anyone know what the report above means and what I should do about it?
Also, how to find that tutorial?
Re Using RGB all the way through, When I print from Photoshop Elements, I select Adobe RGB, Photoshop Manages under "Color Handling", Relative Colometric under "Intent" and "ColorSync" i the Epson printer box. Do you mean to do something different in this sequence?

Lightroom (ACR 4) color management problems

Lightroom (or ACR 4) has some color management problems. When I develop a DNG into Photoshop (sRGB) everything looks great. Then I proof colors for the web (monitor RGB) the reds become oversaturated. I don't see this problem when I develop the same DNG using Bridge (ACR 3).
Any picture that I develop using LR that looks great in Photoshop, becomes way too red when published on the web.
Whats going on here?

I have confirmed this finding using Photoshop CS3 beta - same problem in converting to the web - too red!

Color Management problems

Hello to all!
I have bought a new monitor lately, a Dell Ultrasharp U2410 and my very pleased with it but I have encountered some problems, mostly with sRGB and AbobeRGB color spaces.
I have calibrated my monitor correctly with Spyder3Elite (5800 - 120 - 2.2) and I'm using Europe Prepress 3 color profile in Photoshop and Illustrator as I am a graphic designer and I mostly work in CMYK color spaces.
This means that I use AbodeRGB and Coated Fogra 39 in the programs.
I begun having problems with RGB color space when I realised differences in images I was trying to export from Photoshop and Illustrator for Internet use ("save for web" menu) both in Firefox Broswer which I have calibrated too ("about:config" menu).
And I will give you and example:
I am using the "Color Index 2" book very often for easily finding color tones both in RGB and CMYK. I have use it for finding and matching the colors for my id and website.
So I have selected a blue color tone #00adef which according to the book and my monitor is R:0 G:173 B:239. This is actually Cyan 100% accoriding to the book (my monitor reads 90% but no big deal there).
When I see the color tone though AdobeRGB color space in Photoshop and Illustrator, it looks very close to the book. When I see it though sRGB the difference is huge!
And let's say that this quite normal as AdobeRGB is a lot wider color space compairing to sRGB. And let's say that I have to get used to it as I use a wide gamut monitor now.
The real problem is this: No matter how I export my files for web ("save for web" menu) both in AdobeRGB, by checking Embeded ICC, and in sRGB, when I use "Print Screen" to take a color sample, the color values change!
So to sum up:
1. I know that it's different to have a wide gamut monitor but how "normal" is to see such huge difference in RGB color spaces?
2. If browser color management if OFF and I use AbobeRGB color space, everything looks the same. If browser color management is ON no matter if I USE AbobeRGB or sRGB I have problems (color differences + "print screen" inaccurate color tones).
Can anyone tell me what I do wrong here, if I should or should not do something to fix all this because guess what, if I can't fix the problem with my own color palletes for my site and id, I can't work correctly either. Help!
I have alredy read lots or forums, reviews etc about color management but I am still confused about where I am doing it wrong.
Thanks for reading this and I hope that someone will have an answer help...

when I use "Print Screen" to take a color sample, the color values change!
windows Print Screen (screenshot on Mac) I believe is based on the monitor profile, the Mac embeds the monitor profile in its screenshots
i may suggest that you get a handle on how colormanaged apps apply the source profile and Convert (or transform) the colors to the Monitor or Print profile
whereas unmanaged apps (for practical purposes) send the RGB numbers straight through to the monitor unaltered
moreover, some windows apps that claim to be color managed only transform (or Convert) the color to sRGB (they are not fully color managed like Photoshop, Photoshop converts to the monitor profile)
all this is pretty easy to observe (especially on a wide gamut monitor) if you apply the basic theory...

How to Turn off Color Management in Photoshop 7

Wondering if anyone can guide me through the steps of turning off Color Management in Photoshop 7 so that my Epson 2200 manages the color?
I've already tried turning off color management in photoshop color settings and also in the printing box. My photographs print out perfect in iPhoto
but I am limited in printing size.
Thanks

Agree, turning off color management in the color settings is 100% the wrong thing to do.
Under printer profile, select the DocumentRGB profile.
NO! Select the PRINTER profile (and paper type, etc. as needed).
The instructions you gave will give unmanaged color, and offer no chance for the printer to do it's thing at all. (guaranteed fail)
Having Photoshop manage the color, converting to the printer profile, and telling the printer driver to get the heck out of the way is far more likely to give useful prints.

How to disable the printer's color management in Photoshop CS5 with Mavericks?

Hi there, does anyone know how to disable the printer's color management in Photoshop CS5 with Mavericks? There doesn't seem to be an option. Could you help? Many thanks

Just select Photoshop Manages Color, and the printer driver color options should be disabled.

Print Color Management Problem ?

I have a print color management problem I cannot solve. It reminds me of the print color management problem I had over a year ago when the compatibility conflict between LR and MAC Leopard produced horrible prints. I have Snow Leopard now and been out of the country for some months and yesterday when I tried to make some prints the same problem reemerged. So I downloaded current drivers (and ICCsfor Premium Luster) from Epson and LR 2.6 and spent a good part of the day with Martin Evening's book. I followed (I think) his instructions to make the basic print step by step but the prints still were terrible. My problem is with the color management pop up in the print settings dialog -- it says "color matching" not color management and I cannot check either "no color management " if I want LR to control the process (Kelby) or check "color sync" if I want my Epson R800 take over. I have no idea where the "color management" pop up went. I'm clueless as usual and probably omitting a step because of frustration or brain numbness. Any help would be appreciated. WJS

The settings in Lightroom are simple. and contain in the Print Job panel in the Print module. You either select manage in printer (and then select the profile in the printer drivers) or select the profile here and then turn of all colour management in the printer drivers. The second option will usually produce the best results. What you don't want is to have the profile selected in both LR and the printer drivers, so if the driver doesn't have an option to turn of colour management then you may be forced down the first route. However it would be an unusual decision for a printer manufacturer to make drivers that can't turn off colour management, so you may wish to ask how to do it to your printer manufacturer or check the printers handbook.

Print Color Management Problem w. Photoshop Elements and Tiger/Leopard

Has anyone tried printing with ICC profiles through Photoshop Elements 6 for Mac? Apparently, it does not work on Tiger nor Leopard? My prints look very dark and over-saturated.
The Datacolor folks, who make the Spyder3 calibrators I'm using, say my prints look like they are being "double color managed," possibly once by PSE and once by the printer driver (even though it's turned off).
Over at the Adobe Forums some say it's a problem with Leopard. I'm not so sure, because I found that printing color management works fine on a Mac with Photoshop Elements 4.01 and Tiger. Any comments? Thanks.

Aha! Got it. Adobe has confirmed that the problem is on their end. PSE 6 is double color managing the images. Here's what one user got in reply from Adobe on the subject. There are two separate answers:
Thank you for contacting Adobe Technical Support.
After consulting with my colleagues about the issue you raised, I can let you know the following:
The issue is both on our as well as the driver software side and the workaround we have given is the best available at this time. This issue is affecting all printers, not just Epson or Canon.
The soft proofing effect that you are seeing in the print preview is indeed an attempt at soft proofing. However since Photoshop Elements managed prints are incorrectly double colour managed it is not as useful as it was initially designed.
As to the exact details of why this occurred, we have no official information.
We believe that this will resolve the issues you are experiencing, however, should the reply not help solve the problem, please contact us again, quoting the case number given above, and we will re-open the case.
Answer # 2
We have had word back from our engineers regarding your issue.
The Photoshop Elements team are aware of the problem and are working with Apple and the printer manufacturers to get this to work correctly. In the meantime, the only workaround is to switch off colour management in Photoshop Elements and let the printer handle the colour management.
Unfortunately we can not make an estimation as to when a fix will be provided. We will close the case for the time being as there really is nothing more we can do about this issue besides offering the suggested workaround. Closing this case does not mean that the research will stop however and the engineers are working on a solution to this.
As the tech noted, let the printer handle the color instead. Tell PSE not to manage color so it is the step sending the data unaltered. When the print dialogue comes up, under the Color Correction heading, change the pull down menu to "ColorSync". In the menu below that, choose the correct profile for the paper you're using. If the Brightness menu is still active, look for any choice that allows you to turn it off. If none exists, leave it on Normal. If the options below that for Color Balance and Intensity are not grayed out, make sure they are at the center positions (no effect).
These steps are the same as before, except you're doing them in reverse. Photoshop is doing nothing and the print driver is handling the ColorSync chores rather than the other way around.

Officejet pro 8600 plus e-all-in-one color managment problem.

please help, I'm a photographer and I own officejet pro 8600 plus e-all-in-one printer. I want to print my photos using this printer, but it never print them right, so I bought Colormunki photo to calibrate my monitor and my printer and match them together. The problem is I can't control the printer color management !!! I want to disable it, so I can use the printer profile in Photoshop or other applications to get the right prints. my prints are darker when I set the color management to be handled by the application, or I make the printer handle it but I will end up with wrong colors. I really really need to change the profile of the printer. how ?????? otherwise I really have no use of it in my work.

Jassim,
Kudos to you for figuring out how to better control the outcome for what you require.
I have learned something new today. Smiling!
Did you create the new profile manually or add it in from a previously saved setting? Filename / filetype?
It has been a while since I used Photoshop. I am thinking I may take another look at my old favorite.
Edits << 27-Dec-2014 >> Added the following links:
Profile Support Center
How to use ICC color printer profiles for inkjet printers
Click the Kudos Thumbs-Up!
It is a nice way to say “Thank You" for the help.
Although I strive to reflect HP's best practices, I do not work for HP.
Kind Regards,
Dragon-Fur

Color management in Photoshop Elements...

Hello all
I know this is an Apple forum, but I also know many of you use Photoshop Elements as well, and I think there is a wealth information here.
So, I am very perplexed about something in PSE. I currently have PSE3 for Mac (although the version should not matter for my question).
My question has to do with the color settings in PSE preferences. As you know, one can choose No Color Mgt., Limited Color Mgt. = sRGB, or Full Color Mgt. = Adobe RGB. When I choose full color mgt., overall tones are VERY red. When choosing limited color mgt., colors are slightly red, and no color mgt., colors are fairly neutral. This is all by default. I know how to clean up the color casts, but for general printing, where should I be? I typically only print 4X6 or occasionally 8X10, nothing professionally. When printing, what is the ideal, or preferred Source Space? I have found that if the source space is the same as how the image is tagged, things look pretty good. I also keep the Print Space set to my monitor settings which is the iMac profile. I suppose the issue is that I do not want to have to constantly correct the reddish tones for every photo I manipulate in PSE, although I typically do.
So my basic question is this: What settings are you using in the PSE print dialog box that give you the best looking prints, i.e., source space, print space? How do you color manage you photos? And, what are your color settings in preferences?
Many thanks in advance…

mikwen:
If you compare the sRGB and Adobe RGB color profiles with ColorSync Utility you'll see that the Adobe profile is much wider. I understand it is used for high end CMYK printing or similar. The Adobe profile gives me a much darker onscreen image. Haven't printed with it in quite a while so don't remember what the output was.
Apple uses the sRGB profile in their books and other printed products. So I've setup PSE to use the sRGB profile and set my monitor to sRGB but with a 2.2 gamma. That seems to work for me.
I don't know which camera you have or what color profile it embeds but the Canon's, and others, have a camera profile that is very close to the sRGB. If you installed the software that came with your camera it probably added the camera's profile to the system and you can view it with ColorSync Utility.
Do you Twango?
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've written an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.

Color management problems - help please!

Hello, I'm trying hard to understand color management and to make colors consistent throughout my workflow, and I'm failing miserably despite reading and re-reading the help files. I'd REALLY appreciate some help with my specific problems, which I'm going to detail here.
WHAT I DO
I make pictures for use on the Web. I do both this by photoshopping existing photos, and by digitally drawing and painting in photoshop starting from a blank document.
HOW MY SYSTEM IS SET UP
1) I have my monitor set to sRGB, and I've calibrated the colors using the Viewsonic calibration app that came with the monitor. The resulting colors look good, to my eyes at least.
2) I've set up Photoshop to use sRGB as the working RGB colorspace, and to convert RGB images to the working colorspace
3) I've set up Photoshop's Save For Web to embed the color profile, to Convert to sRGB, and to Preview with Use Document Profile
THE PROBLEM I'M HAVING
The preview I see in the Save For Web preview screen exactly matches the source document. However, after saving for web, the color of the jpg or gif is significantly different to that of the original document.
If I change the preview mode to Monitor Color, it does show an accurate representation of the jpg or gif that will be saved, but of course as I've explained that is drastically different to the source document.
WHAT I NEED
1) I need the output jpg or gif to match the source document
2) I need to understand what's going wrong so that I can gain some insight into this process. I'm finding it very confusing
Any help would be greatly appreciated.
Thanks,
Mark

Mark,
What model of viewsonic do you have? And is it a CRT or LCD?
If it's a CRT, there are some software based "eyeball" calibrators which can get you in the ballpark. If you have an older version of Photoshop you can use the Adobe Gamma utility that was included in CS2 and earlier versions.
After that, my previous advice still stands, but the best results are still going to be to bite the bullet for a colorimeter and live with the peace of mind that will give you.
If your Viewsonic is an LCD, you're much more limited, as the eyeball calibrators were never designed for LCD's. You can try them and they may be better than nothing, but no guarantees.

Color Management Problem

I just installed Photoshop CS3 on my home PC, and seem to be having a problem with color management. When opening photos taken with my Canon G9, or even pictures downloaded off the web, in Photoshop they appear badly posterized. Viewing the same photos in the Canon ZoomBrowser, or with the standard Windows XP tools, they appear correct.
Obviously, my color management is not properly configured. I am using the standard North American defaults with sRGB for my RGB working space, and I've tried every RGB color management policy. My monitor is an older Dell 24" LCD (I don't have the model number in front of me right now). My monitor is not calibrated, but that would not account for the dramatic difference I see in Photoshop vs. other viewing applications.
The best I can achieve is by switching the RGB working space to Monitor RGB (or proofing with that configuration), and discarding the embedded color profile (sRGB in my Canon images). And yes, Photoshop does list the specific color space profile for my Dell monitor. This still results in a different color rendition from that which I see when viewing the same photo in other applications, with blues shifted slightly toward purple.
I have several other Mac and PC based Photoshop systems in my office, but I haven't had the chance to see how the same pictures look on those. It seems to me that this is something particular to the color space of my Dell monitor, but I'm not sure of the appropriate way to correct it.

Your prints are too dark. So you need to either make your monitor darker,
or your prints lighter. Given that you are probably fairly happy with your
monitor for cruising the web, etc, let's focus on your printer.
If it's like my HP, there is a brightness adjustment in the printer driver
under Start>Settings>Printers and Faxes><"printer name">. Adjust it until
the overall brightness of the print matches, as closely as possible, the
appearance of your screen.
To save paper and ink, I recommend that you print a thin strip at the top
of the page, and snip off the strip after each test.
Here is a test strip that you can use, with a variety of blurred skin tones
as well as a gray test strip. The procedure is documented here:
http://curvemeister.com/downloads/TestStrip/digital_test_strip.htm
As a final check, download images from any well-known web gallery and print
them, or use one of the calibration images from www.drycreekphoto.com . If
they are too dark or too light, you may want to revisit the brightness of
your monitor.
Trust your vision, and treat this as a learning experience. With a little
patience, and a systematic procedure, you can get good results without a
calibration device.
Monitor calibration devices are a valuable tool in a professional or high
end amateur setting. No one is saying they are a complete solution to
matching display to printer, and some final tweaking may be necessary for
matching print and display.

Color management problems printing to Epson R2880 from CS3

I recently purchased an Epson R2880 printer. I am having a lot of trouble getting good color when printing from Photoshop CS3. I am running OS 10.4 on a G4 Mac. I have a high-quality monitor and an EyeOne calibrator. I have spent a total of a few hours on the phone with tech support from the store where I bought the monitor and calibrator, and with Epson. To try and keep it simple, I am using all Epson products (ink, paper, their ICC profiles downloaded from their site). I have calibrated my monitor to brightness: 80, white point: 5000 K, Gamma 2.2.
All that tech support has brought me to the point where prints I get on Epson Velvet Fine Art paper and almost where they match what I see on the monitor, though they still could use a touch more red. I've tried making a slight curves adjustment to the red channel but I still don't quite have it. But it's basically acceptable.
So then I tried Epson Premium Presentation Matte paper. After a lengthy session with the Epson tech, we determined that I can get a print that's almost right by printing out of Preview and letting the printer manage colors. If I make a levels adjustment and brighten it a good bit, I get a very good print. But if I try printing on that paper from CS3 I get something that looks like a washed out black-and-white print with a hint of color in it. The Epson tech (a level 2 tech) told me to use the SPR 2880 Matte Paper-HW profile. Didn't help. At that point he said that he'd done all he could do and that for further assistance I needed to contact Adobe about "advanced settings in Photoshop." Of course, I'd prefer to print out of Photoshop because it gives more options in terms of placement and size of the print on the paper.
So here are my questions:
- Is this kind of thing par for the course, and will I eventually figure out a system that gives me good results all the time with any Epson paper I choose with a minimum of tinkering with levels and curves?
- Or should I expect more from a printer that costs almost $1,000 and should I return it for, say, a Canon?
- Is there information online about those "advanced settings" the Epson tech was referring to?
- Or would I be advised to purchase a one-on-one phone consultation from Adobe Photoshop tech support to resolve these problems?
Thanks,
Helen

Mike,
Gee Ramón, I am guessing Mike did a search for Epson R2880/CS3 and noticed that a Mac user was having the same problem he was. If together, maybe Windows users and Mac users can come together and solve the problems of the Epson R2880, maybe we can set a good example for the Republicans and Democrats in Congress :-).
Anyway, since I posted this problem, I have been working on it getting input from a variety of people. The person who finally helped me was Jim, a tech at ColorHQ.com. If you are in the US or Canada and have to buy a monitor and/or calibrator, definitely consider buying it from them, because they offer free tech support to their customers!
So regarding yellowness, one thing that you definitely should look at is how you're calibrating your monitor. Despite some of the replies above that recommend calibrating to 6500K, ColorHQ, which specializes in solutions for the printing industry, told me that calibrating to 5000K is the print industry standard. (While 6500K is the standard for working on images for the web or for editing video.) 5000K will make the monitor look yellower, so see whether that's a better match to what you're printing. I have an Eizo monitor and am running their Color Navigator software. The nice thing about that is something called Color Navigator Agent that allows me to switch between calibration profiles on the fly if I'm doing some web work and then want to work on images for printing.
Calibrating to 5000K was helpful, but not the solution in my case. The ultimate solution to my problem was more of a Mac issue, so I don't know if this will help you, but I'll post it in case anyone refers to this discussion in the future: there evidently IS an issue with ColorSync Utility in the Mac interfering with Photoshop managing colors in OS 10.4. In my case, ColorSync was causing the printer to preserve RGB values rather than use the ICC profile. The afore-mentioned Jim suggested that I go to Edit: Convert to Paper Profile, then pick the profile from the list. When printing, in the first Photoshop dialog box choose Color Handling: No color management. All the other settings in the next dialog box are the same as when you don't want the Epson to manage colors. So what you're doing is making it so the profile is built into the file, and neither Photoshop nor Epson are managing colors.
The result to this was MUCH better. The soft proof is a little redder than the print, but I can adjust that by creating a curves adjustment layer and pulling down the red curve in the middle a little bit if I want to see what the print will look like. I can live with that.
Also Jim pointed out that those papers that you mentioned are in fact a little warm in tone -- put Velvet Fine Art next to a piece of ordinary copy paper from say, Staples, and you'll see the difference. He suggested that if it's the matte look I want (it is) that Hahnemuhle makes a couple of papers that are brighter: Photo Rag Baryta and Bright White He also likes Ilford Gold Fiber silk, but that's a luster satin finish. You can download the Hahnemuhle profiles from Hahnemuhle's web site and compare them in "Soft Proof" mode in Photoshop with the Epson papers you mentioned and get an idea of the difference with your images. I haven't actually printed on them yet, but I see what he means.
Good luck, and I'd be interested to know how it goes for you.
--Helen

No color management in Photoshop plugin!?

Today, I finally started playing with PixelBender in order to make some Photoshop filters for color and tonal corrections. Unfortunately, I seem to have hit a snag. Unlike any of the other filters, the preview window of the PixelBender plugin is not color managed. This means you're essentially flying in the dark when making adjustments. Not a big problem for a mosaic or warping filter, but it's pretty fatal for color adjustment filters.
This probably has something to do with the fact that PixelBender uses its own display path (GPU/CPU). Then again, Photoshop itself also uses some 3D acceleration without breaking color management, so why can't the PB plugin do the same? Does anyone know if there is a way to enable color management? If not, is there any chance that this will be improved in the plug-in? Just in case this could depend on configuration: I'm testing this on a Windows XP SP3 laptop with integrated intel graphics (so I get CPU mode), running Photoshop CS4.
As it stands, PixelBender has a lot of potential as a cross-platform plug-in platform for Photoshop, but it still has a few major drawbacks:
The plugin preview window is not color managed.
The plugin processes all pixels, regardless of zoom level and visible image area. This makes it slower than necessary.
There is no way to determine the color space of the input image [or a way to use a standard space such as ProPhotoRGB/RIMM]. Without this facility, a 'color-aware' plugin must be written to match a particular color space.
No access to UI controls beyond sliders.
If only the new actionscript wrapper for Photoshop gave access to the image data, then most of the above could be addressed. For now I'll wait and see what, if anything, is around the corner...
Regards,
Simon

Thank you for your response. It's good to know that a color-managed plugin could be in the cards. This would really be useful to me. Among other things, I'd like to port this plugin to PixelBender: http://21stcenturyshoebox.com/tools/tonability.html . It's currently written in C/C++, but programming for the combined Photoshop and win32 SDKs is such a pain that I'd prefer to move on sooner rather than later. Not to mention that a single PixelBender kernel could run on win/mac and 32/64-bit.
I realize that getting access to the color space of the image would require a language change. Furthermore, it would probably require a library (supplied or self-made) to make sense of all possible color spaces, or to transform images to and from standard color spaces. A simpler possibility would be to add a checkbox in the plugin (or a simple kernel option) that imposes a particular reference color space on all inputs and outputs. The plugin container would then take care of transforming the image to the proper space and back again. My personal favorite for such a space would be the linearized ProPhoto space used by Lightroom and ACR, because it's linear and sufficiently large. And if I may dream a little: this choice would also make it easier to insert PixelBender filters into the Lightroom workflow at some point in the future...
About the UI: a particular limitation I am running into is that I cannot control/restrict the sliders based on the values of other sliders. In my case, some inputs should always be higher than other inputs (and using relative numbers is not an option for the UI). The evaluateDependents() function is great for making sure that the kernel gets the right numbers, but there is no way to feed this information back to the user. For example, you cannot disable a slider, restrict its range or change its position from within the kernel. This is no surprise, given the one-way programming paradigm that the GPU is so good at, but a hindrance for writing 'stand-alone' plug-ins. Rather than changing the language to accomodate these features, would it be possible to have a flex/AIR container in the control section of the plugin? The Flex/AIR program could handle the UI, including feedback and other advanced functions, and could feed the PixelBender kernel with the correct parameters. Just another far-fetched suggestion, but it would make my life a lot easier.
Simon

How do I turn off color management in Photoshop 5?

There are three selections, only the first two clickable, in PS5 under Color Management in the Print dialouge:
Printer Manages Colors
Photoshop Manages Color
Separations (grayed out/unclickable)
Under Printer Manages Colors - there is no option to turn off color management for my Canon 9500 Mark ii
Under Photoshop Manages Color - there is no option to choose "No Color Management"
You can chose "No Color Management" in PS3, but not PS5? What happened to this option?
How is it possible to create a profile from a print of color swatches if I can not turn off color management?
(I am running Mac OS 10.6.4)
PS> this is the second time I'm contacting Adobe. First was by phone but I couldn't understand the message left on my voice mail after the phone technician had to ask for help from upper management - the english was so bad. I'm hoping by the written word I'll be able to understand. Please help.

I have researched the matter a lot and I,
along with many others, still have problems with this complicated
subject.
Color management is as simple in theory as Honoring a Source Profile and CONVERTING it to a Target Profile (monitor or printer) for Proofing.
But yes, we work at the mercy of the rocket scientists who try to dumb an extremely complicated process down so regular folks (like me) can make it work — trouble is I think their approach needs a bit more distilling and common sense sometimes...but it is very doable once you put in the time to figure it out, just follow the CHAIN in your workflow if you're still having problems.
If you want a "simple button" try staying in sRGB and printing out of Apple Preview app using OEM standard papers matched to your printer and OEM ink set.

Color management problem-Photoshop 7

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