i was just tinkering with some images from my dslr. captured it with the d70 using srgb Ia (?)

im using Photoshop cs2 and the color settings are set to adobe rgb.

after some tweaks affecting color balance, when i use "Save for Web" the final image came out redder (skin tones) than what i edited.


why is this? after discovering i set it before to adobe rgb i reverted to srgb and the "save for web" now doesn't change the color balance.

oh wait. it still does make my images a little redder when i use "Save for Web"

have to lessen the reds just so i can get the desired skin tones when i "Save for Web" :(

still shoot in adobe rgb and edit using that profile. when you plan to save for the web, convert the image's profile to sRGB under the edit menu. it becomes more saturated as compared to adobe rgb. that's perfectly normal.

the shift is because of the profile difference. rely on the fact that the web only supports sRGB even if you embed another profile in your image.

When you go from Adobe RGB to sRGB you see more reds? I would think it would be the other way because Adobe is a much wider color space than sRGB. Going from wide to narrow usually mutes the colors rather than the other way around. It would be safe to guess that skin tones lie in the same color gamut of Adobe and sRGB. Maybe its the reduction in color data saving for web that makes this shift.

Also do you Convert to Profile or Assign Profile? Two differences here. Assign profile keeps the same RGB numbers and plots it into a different color space thus giving you different colors. Convert to Profile changes the RGB numbers and will maintain the same colors that are within gamut. The only change will come from out of gamut colors from going wide (Adobe) to narrow (sRGB). The color change is then handled by your Rendering intent.

ok. many thanks to you guys. much to learn here. :D

main problem lies with the shift to reds in "save for web".

speaking of adobe RGB and sRGB, which should I choose? (sorry, am so lost.) except for size, what are the other differences?

Dindin,

Just imagine pouring a 1L bottle of coke into a 500ml glass. 1L (Adobe RGB) holds much more colors than 500ml (sRGB). So if you pour that 1L into the 500ml glass, you get some spillage which is like throwing out some colors. The colors you throw out are gone and can't be used.

The idea is to capture images in a wider space such as Adobe RGB to ensure that you get as much of the colors at the beginning. You should set your camera to this for jpegs or convert to this when processing RAW to make sure you get the most colors. Why do this? Because if you plan to print your images, most printers today can print wider than sRGB. Printers may not be able to print the entire Adobe RGB but they can go wider than sRGB so it is better to be use all your colors rather than throw them away.

Now if you are like many people here who only take pictures and post it on the internet, stick with sRGB since the web only handles sRGB. But even then, I would still recommend Adobe RGB because you can always convert your file to sRGB. You might capture that winning sunset photo or that festival portrait with bright colors only to learn it looks drab and flat when printing because you decided to stay in sRGB.

set my camera to adobe RGB the other night... 15mb per image (RAW)...

:-)...

dindin,

you won't regret it. it might be bigger, but it is definitely better.