Difference between revisions of "Color depth"

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#REDIRECT [[bit depth]]
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{{also wikipedia|color depth}}
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'''Color depth''' is a term describing the number of bits used to represent the color of a single pixel in a computer display. This concept is also known as '''bit depth''' or '''bits per pixel''' (bpp), particularly when specified along with the number of bits used.  Greater color depth gives a broader range of distinct colors.  Along with monitor [[resolution]] it is one of the two factors determining how much [[video memory]] a Macintosh uses.  Macs can be set to one of several color depths:
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* 1-bit (2¹ = 2 colors) monochrome/black and white
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* 4-bit (2⁴ = 16 colors)
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* 8-bit (2⁸ = 256 colors), called "hundreds" in the control panel
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* 16-bit (2¹⁶ = 65,536 colors), called "thousands" in the control panel
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* 24-bit (2²⁴ = 16,777,216 colors), called "millions" in the control panel
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Because memory is most conveniently accessed by programs in even multiples of a byte (8 bits), these are the only color modes supported.

Revision as of 20:30, 7 November 2007

Note icon color.pngWikipedia has more information about color depth.

Color depth is a term describing the number of bits used to represent the color of a single pixel in a computer display. This concept is also known as bit depth or bits per pixel (bpp), particularly when specified along with the number of bits used. Greater color depth gives a broader range of distinct colors. Along with monitor resolution it is one of the two factors determining how much video memory a Macintosh uses. Macs can be set to one of several color depths:

  • 1-bit (2¹ = 2 colors) monochrome/black and white
  • 4-bit (2⁴ = 16 colors)
  • 8-bit (2⁸ = 256 colors), called "hundreds" in the control panel
  • 16-bit (2¹⁶ = 65,536 colors), called "thousands" in the control panel
  • 24-bit (2²⁴ = 16,777,216 colors), called "millions" in the control panel

Because memory is most conveniently accessed by programs in even multiples of a byte (8 bits), these are the only color modes supported.