Found a weird "color glitch"

[sk66]

I just noticed that if I copy an image and paste it into PS (CS5) the colors change. It's not always very noticeable but in this one case it's rather significant.... I've checked my color settings, color space, tried several different browsers (firefox, chrome, safari).
I even tried different backgrounds in PS since the luminance levels affect perception....

WTF? No matter what I do I cannot get the "browser version" to look the same as the PS version..

I don't think recalibrating will change anything significant since it's only been a couple weeks....(I use ColorEyes Pro)

Any Suggestions????

[LeeR]

I think you are looking in the right place. It almost has to have something to do with your color space. Which one are you using in PS? If I am not mistaken, the preferred RGB color space in PS is the older version.

[ravncat]

I've been thinking about this, and I'm not sure of the answer. I've found the following tidbit of information, which may or may not be related... It looks like Firefox is not yet compatible with ICC version 4 profiling, and thus Firefox will not be able to display this tutorial properly if your monitor profile is ICC v4.

Version 4 ICC Specification

I also came across this jumbled website in the process WEB BROWSER COLOR MANAGEMENT Tutorial - Test Page FireFox Safari Chrome Internet Explorer IE 9- FILES have embedded ICC profiles Photoshop ColorManagement

So that may or may not help.

The only other thing that I can think of is that you are saving to a lower bit and possibly a different colorspace from what you are working in. (For example 16 bit to 8 bit - there's loss of color information there, but probably not enough to cause perception differences).

It is however possible if you are going from say prophotorgb to srgb that your conversion method is causing the differences (perceptual, absolute, relative) - especially in images that have color in the range outside of the gamut of the colorspace you are going to - and would be most notable with high saturation of color.

That too may or may not help...

If not the above, I'm with Lee, it's probably some setting somewhere, and I have no idea - i'd need to be at the computer myself to have a chance of diagnosing it. So good luck to you! Isn't color management fun

[katia]

i had that problem a little while ago, as well. could not for the life of me figure it out, i assume something simple was changed within the program. whenever i would open up a photo in PS, it would look a whole lot duller (more dull?) and also it would lighten.

i think it fixed itself somewhere in a reformat/reinstall of CS4, but it could have happened when i got a new computer.

sorry i don't have much to offer, but i'd like to follow up and know the answer!

[OsmosisStudios]

... and you wont. CS5 uses your entire GPU and most of the CPU/RAM to show you the image: The browser doesnt. There simply isnt that kind of dedication in a browser.

[sk66]

Originally Posted by ravncat

I've been thinking about this, and I'm not sure of the answer. I've found the following tidbit of information, which may or may not be related... It looks like Firefox is not yet compatible with ICC version 4 profiling, and thus Firefox will not be able to display this tutorial properly if your monitor profile is ICC v4.

Version 4 ICC Specification

I also came across this jumbled website in the process WEB BROWSER COLOR MANAGEMENT Tutorial - Test Page FireFox Safari Chrome Internet Explorer IE 9- FILES have embedded ICC profiles Photoshop ColorManagement

So that may or may not help.

The only other thing that I can think of is that you are saving to a lower bit and possibly a different colorspace from what you are working in. (For example 16 bit to 8 bit - there's loss of color information there, but probably not enough to cause perception differences).

It is however possible if you are going from say prophotorgb to srgb that your conversion method is causing the differences (perceptual, absolute, relative) - especially in images that have color in the range outside of the gamut of the colorspace you are going to - and would be most notable with high saturation of color.

That too may or may not help...

If not the above, I'm with Lee, it's probably some setting somewhere, and I have no idea - i'd need to be at the computer myself to have a chance of diagnosing it. So good luck to you! Isn't color management fun

Those two links above give the answers...thank you!

Basically it comes down to this, most web browsers are not color managed regardless.

Safari is color managed and is ICCv4 compliant which means it reads all color spaces correctly (even untagged) and displays them accordingly. This also means there will be some differences when viewed on your computer.

Firefox *can be* color managed but is not ICCv4 compliant. What this means is you have to turn on color management (instructions are in second link) and I also had to recalibrate my monitor to a V2 ICC (I use color eyes and it took me a few minutes to figure out how to change it). Firefox is then *fully color managed*. What this means is that all images are displayed the same on your monitor. This is a little different than Safari in that Safari shows you what it looks like on the originating monitor and Firefox shows you what it should look like on your monitor.....

I can't decide which is "better".

I don't think any of this is an issue *if* the images have Srgb color space EMBEDDED in the image.

I found the images with issue were Srgb, but unembedded.....If I copied the files directly to desktop and then used an exif reader on them they had no/invalid header.

[ravncat]

Good to know, glad it`s solved