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

Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
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.