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Paper adds color cast?

Discussion in 'Paper & Other Media' started by apetitphoto, May 31, 2017.

  1. Jun 8, 2017
    Roy Sletcher

    Roy Sletcher Indolent contrarian Platinum Printer Member

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    There is a method to the madness if I correctly remember my colour science from college over 50 years ago.

    In broad concept the dominant or strongest colour will visually modify surrounding colours towards the COMPLIMENTARY of the dominant colour.

    Hence consider a pictures of yellow sand and a blue sky.

    The yellow sand will tend to cause the surrounding colours to visually move toward blue (The sky) and the blue sky with cause the surrounding colours to move visually towards yellow (The sand).

    Carefully used this can aid reproducing the colours in your images, especially if a beach or desert scene.

    Another example being red fruit and green foliage.

    Enough for now - let's keep it simple.

    rs
     
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  2. Jun 8, 2017
    apetitphoto

    apetitphoto Getting Fingers Dirty

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    Therefore neutral grey causes no "movement."

    Ok, I've learned something. Nap time…
     
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  3. Jun 8, 2017
    Roy Sletcher

    Roy Sletcher Indolent contrarian Platinum Printer Member

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    it does cause movement - LUMINANCE. Neutral grey in the absnce of other factors, and if sufficiently dominant will tend to visually affect the luminance NOT the chroma (Colour values).

    At least based on my 50 year old theory. And please note we are talking VISUAL PERCEPTION. The measurement of the colour values does not change. Hence my earlier facetious comment, "Don't believe your lyin' eyes" :)

    Always open to peer review and corrections where necessary.

    rs
     
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  4. Jun 8, 2017
    mikling

    mikling Printer Master Platinum Printer Member

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    Robots can be trusted to overcome this or can they? Actually,They can be trained to have the same deficiencies as humans or taught to have the same lyin eyes bias. Deep learning is around the bend. Kinda scary stuff.
     
  5. Jun 19, 2017 at 2:50 AM
    apetitphoto

    apetitphoto Getting Fingers Dirty

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    But will they care?
     
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