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1-8-16 colour

  • 07-12-2009 11:30pm
    #1
    Four of a kind
    Registered Users, Registered Users 2 Posts: 3,055 ✭✭✭


    Just would like to know whats the difference in the above colour formats when you create a new document in photoship CS2? Its opposite the RGB colour in the new document settings?

    Mine is currently set at 8 bit.


Comments

  • #2
    Ghost Train
    Registered Users, Registered Users 2 Posts: 30,565 ✭✭✭✭Ghost Train


    Four of a kind wrote: »
    Just would like to know whats the difference in the above colour formats when you create a new document in photoship CS2? Its opposite the RGB colour in the new document settings?

    Mine is currently set at 8 bit.

    it to do with the number of colours
    3bit=8 levels
    8bit=256 levels or colours

    In photoshop 8bits per channel means 256 levels of red x 256 levels of green x 256 levels of blue. This gives you 24bit colour or 16million different colours

    monitors are typically 24bit colour so working in 8bit photoshop matches that

    16bit mode (48bit) is useful for working with raw files from camera or scanners


  • #3
    Four of a kind
    Registered Users, Registered Users 2 Posts: 3,055 ✭✭✭Four of a kind


    Ghost Train wrote: »
    it to do with the number of colours
    3bit=8 levels
    8bit=256 levels or colours

    In photoshop 8bits per channel means 256 levels of red x 256 levels of green x 256 levels of blue. This gives you 24bit colour or 16million different colours

    monitors are typically 24bit colour so working in 8bit photoshop matches that

    16bit mode (48bit) is useful for working with raw files from camera or scanners


    So is it no harm to have it set at 16 bit the whole time?


  • #4
    Ghost Train
    Registered Users, Registered Users 2 Posts: 30,565 ✭✭✭✭Ghost Train


    Four of a kind wrote: »
    So is it no harm to have it set at 16 bit the whole time?

    Not sure really, I suppose not. You mightn't see any differance though since the screen only shows 8-bit. When saving for a website or to jpeg it will be converted to 8-bit


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