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Thread: Color Issues

  1. #1

    Default Color Issues

    I do most of my processing in Raw and PSD using CS2.

    But when I convert to jpg, the colors become slighty washout and desaturated.

    What happened?

    I am using Adobe RGB (1998) as the Color Working Space.

    Can anyone enligthen me?

  2. #2

    Default Re: Color Issues

    Quote Originally Posted by Composition
    I do most of my processing in Raw and PSD using CS2.

    But when I convert to jpg, the colors become slighty washout and desaturated.

    What happened?

    I am using Adobe RGB (1998) as the Color Working Space.

    Check discussion mentioned at
    http://forum.clubsnap.com/showthread.php?t=151668
    http://forum.clubsnap.com/showthread.php?t=107402
    http://forum.clubsnap.com/showthread.php?t=92804
    http://forum.clubsnap.com/showthread.php?t=102766
    Last edited by Squid; 2nd October 2005 at 01:33 AM.

  3. #3

    Default Re: Color Issues

    Thanks a Million Squid.

    Just solved my problem which has plagued me for weeks.

    Another question, under the "Convert to Profile" box, there is Conversion Option where you can choose between "Perceptual", "Saturation", "Relative Colorimetric" and "Absolute Colorimetric".......what should I choose?

  4. #4

    Default Re: Color Issues

    Quote Originally Posted by Composition
    Another question, under the "Convert to Profile" box, there is Conversion Option where you can choose between "Perceptual", "Saturation", "Relative Colorimetric" and "Absolute Colorimetric".......what should I choose?

    See http://steves-digicams.com/techcorner/July_2005.html for long explaination on item you mentioned above. In simple words, for most situation, go for perceptual difference as it is more pleasing to the human eye.

  5. #5

    Default Re: Color Issues

    Ah now I know.......

    Thanks again Squid.

  6. #6

    Default Re: Color Issues

    Hi Squid,
    To clarification: if the JPG is meant for printing (rather than web), do we still convert it to sRGB first ?
    Thanks !

  7. #7

    Default Re: Color Issues

    Depends on how you want to print.

  8. #8

    Default Re: Color Issues

    Quote Originally Posted by f1.4
    Hi Squid,
    To clarification: if the JPG is meant for printing (rather than web), do we still convert it to sRGB first ?
    Thanks !
    I have tried developing the following at the printshop (ask them not to do any modification)

    1) 1 picture taken straight from camera
    2) Same picture but have been converted to sRGB in photoshop

    and the result is that for 1), the colour is more natural while for 2) the colours is slightly more saturated. Both pictures looks good and it really depends on personal perference for saturation. Hope this helps.

  9. #9

    Default Re: Color Issues

    Quote Originally Posted by f1.4
    To clarification: if the JPG is meant for printing (rather than web), do we still convert it to sRGB first ?
    Quote Originally Posted by Zerstorer
    Depends on how you want to print.
    As Zerstorer mentioned, depending on what your will be printing on. If your JPEG file is created with colour space other than sRGB colour space, it is advisable to convert to sRGB colour space before printing at most photograph developing shops because these printers accept only sRGB colour space.

  10. #10

    Default Re: Color Issues

    Sorry, i sort of have the same problem. My photos have slightly different colour in different programmes. However, all this stuff is real greek to me. Can't figure out what all the thread is talknig about. I've tried to follow the instructions but some options ain't even there. Can someone explain in real dummy's term?

    p.s. I'm using a PC and adobe CS.

  11. #11

    Default Re: Color Issues

    Quote Originally Posted by dts_spawn
    Sorry, i sort of have the same problem. My photos have slightly different colour in different programmes. However, all this stuff is real greek to me. Can't figure out what all the thread is talknig about. I've tried to follow the instructions but some options ain't even there. Can someone explain in real dummy's term?

    p.s. I'm using a PC and adobe CS.
    Hi,

    The thing about some programs that can display images is that they do not care what colourspace the file is. What colourspace means is this:

    Imagine a colourspace as a kind of currency. If I give a person $10, the number value is 10, but obviously it is not the same actual value as S$10 or 10 or 10. So, if a program cannot tell what colourspace an image is in, similarly, the value for one colour in that program will not be the same as the colour in another.

    Of course this a gross simplification of the issue. The important thing is, to trust Photoshop, (no, they don't pay me $$ to say that... :-) ) cause it can tell what colourspace the image is in.

    Usually it is the choice to print in the sRGB colourspace cause most printers accept colour files from this colourspace. Of course, if you are into really good colour accuracy, you would also need to calibrate, ie. match the colour of the screen with that of the printer...but that is a different story.

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