color depth

(redirected from 32bit 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 ?
It consists of a special cuvette (50 mm x 60 mm x 30 mm) with a thin transparent wall (80 [micro]m), optical fibres (material: quartz-polymer; NA = 0.48; diameter = 600 [micro]m), a b/w 32bit color depth camera (VideoScan-415; VideoScan, Moscow, Russia), and two lasers, that is, a helium neon (HeNe) laser ([lambda] = 632.8 nm, P = 150 mW; Biospec, Moscow, Russia) and a continuous diode ([lambda] = 532 nm, P = 150 mW; Biospec, Moscow, Russia).
Version 2.0 of Filing Cabinets introduces true 32bit color icon support (new to Windows XP) allowing for higher resolution, more brilliantly colored Cabinet icon graphics for your shortcuts.
In compliance with the new icon format introduced by Windows XP (32bit color with 8 bit alpha channel), IconXP enables the user to create icons that contain a smooth edge over any background.