color depth

(redirected from Bitdepth)

color depth

The number of bits used to hold a screen pixel. Also called "pixel depth" and "bit depth," the color depth is the maximum number of colors that can be displayed. True Color (24-bit color) is required for photorealistic images and video, and modern graphics cards support this bit depth.

Per Pixel or Per Subpixel
The color depth of a screen can be referenced by the number of bits in each subpixel or by the total bits per pixel. For example, 8-bit color and 24-bit color often mean the same thing (see table below). The 8-bits refers to each red, green and blue subpixel, while 24-bit means all three. Likewise, 10-bit color subpixels and 30-bit color pixels are the same. See indexed color and bit depth.
Bitsper   BitsSub   per   Total   Common Pxl.  Pxl.  Colors  Designation

        1       2    (monochrome)
        2       4
        3       8
        4      16    (VGA)
        8     256    (Super VGA)
 5-6** 16     65K    (High Color)
   8   24     16.7M  (True Color)
   8   32     16.7M  (True Color + alpha)
  10   30      1.1G  (Deep Color)
  12   36     64G    (Deep Color)
  16   48    256T    (Deep Color)

 ** Red/Blue 5 bits; Green 6 bits


References in periodicals archive ?
At the encoder side of proposed CVS system, the block size BxB of each frame is 8 x 8, the bitdepth b of each quantization is set to 8 in order to guarantee a fair comparison among all quantization methods, the subrate [S.sub.K] of key frame is set to 0.7, the subrate [S.sub.NK] of non-key frame varies from 0.1 to 0.5, and the measurement matrices [[PHI].sub.K] and [[PHI].sub.NK] both use the structurally random Hadamard matrix proposed by [37].
For confocal analysis, images were acquired at a bitdepth of 8 bits with the Zeiss LSM 510 confocal microscope with LSM 5 3.2 image capture and analysis software (Zeiss).
Bitdepth The number of bits per sample for the audio content of the described audio object.