color depth

(redirected from 48 bit color)

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


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References in periodicals archive ?
Unlike CT and MRI, in sectioned-images of high resolution (0.1 mm X 0.1 mm X 0.1 mm sized-voxel) and real color (48 bit color), the terminal branches of the portal triad and hepatic vein can be seen (Park et al., 2005, 2015).
For this study, the 651 sectioned-images of the abdominal region (intervals, 0.2 mm; pixel size, 0.1 X 0.1 mml; bit depth, 48 bit color) and the color-filled-images, including the liver and inferior vena cava, were used.
Planes Intervals Numbers Resolution Pixel size Bit depth Frontal 0.2 mm 466 1,154 X 928 0.1 mm 48 bit color Dorsal 0.2 mm 464 577 X 466 0.2 mm 24 bit color Sagittal 0.2 mm 577 464 X 466 0.2 mm 24 bit color
A total of 4,935 sectioned images of the whole body were prepared (an image file size, 120 MB; total file size, 580 GB; color depth, 48 bit color) (Figs.