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Thread: calling PS experts, how to achieve this colour tone?

  1. #21

    Default Re: calling PS experts, how to achieve this colour tone?

    Quote Originally Posted by eyes View Post
    The tone can be achieved in 2 ways:

    2. Digital processing: Channel swopping.
    Could you illustrate that technique on the image below and explain which channels you swapped?


  2. #22

    Default Re: calling PS experts, how to achieve this colour tone?

    Going for aesthetic compromises rather than specific focus.







    Tum podem extulit horridulum...日出東方﹐唯我不敗。

  3. #23

    Default Re: calling PS experts, how to achieve this colour tone?

    You converted to CMYK????

    Quote Originally Posted by eyes View Post
    Going for aesthetic compromises rather than specific focus.








  4. #24

    Default Re: calling PS experts, how to achieve this colour tone?

    I'ld recommend not shifting to CMYK, and to shift to it only at the printing stage if such a shift is necessary for output...
    Quote Originally Posted by eyes View Post
    Going for aesthetic compromises rather than specific focus.
    seems abit oversaturated and the colour shifted abit too much into the cyan and magenta... I'ld suggest something along the lines of:

    CHANNEL MIXER
    Red
    R: +79, G: 0, B: 0
    Green
    R: 0, G: +82, B: 0
    Blue
    R: 0, G: 0, B: +113

    HSL
    Hue: 0
    Sat: -19
    L: 0

    Not really channel swopping, but using the same tool and getting in my opinion a closer result... add salt to taste... many ways to achieve the same results... YMMV
    Last edited by theRBK; 15th July 2010 at 11:54 AM.

  5. #25

    Default Re: calling PS experts, how to achieve this colour tone?

    Quote Originally Posted by theRBK View Post
    I'ld recommend not shifting to CMYK ...
    Indeed. If you're editing an image for the web, converting RGB to CMYK is a good way to wreck the colors beyond repair.
    Once you've converted, you can't recover the original colors by converting back to RGB.


  6. #26

    Default Re: calling PS experts, how to achieve this colour tone?

    Very Chim~~~

  7. #27
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    Default Re: calling PS experts, how to achieve this colour tone?

    Quote Originally Posted by Peano View Post
    ...
    Once you've converted, you can't recover the original colors by converting back to RGB.
    Sorry, not asking to be spoonfed, but do you have a reference for this?

    It's very hard to understand......

  8. #28

    Default Re: calling PS experts, how to achieve this colour tone?

    Quote Originally Posted by aspenx View Post
    Sorry, not asking to be spoonfed, but do you have a reference for this?

    It's very hard to understand......
    Not sure what sort of reference you have in mind. CMYK is a smaller color space than even sRGB (which is smaller
    than AdobeRGB). When you convert an image from a larger space to a smaller one, you lose the colors that lie outside
    the smaller space. You can't get them back by converting back to the original, larger space.



    Suppose you have five gallons of water and you pour it into a one-gallon container (and toss out
    the extra four gallons). If you pour the one gallon of water back into the five-gallon bucket, you still only have
    one gallon of water. The four gallons you threw away won't magically return.

  9. #29
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    Default Re: calling PS experts, how to achieve this colour tone?

    Thanks for the easy to understand explanation.

    I know how there is loss in information when mapping from AdobeRGB to sRGB and then back to AdobeRGB but never imagined CMYK to be an even smaller colour space than sRGB since it's used for printing.

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