color depth

(redirected from Bit-depth)

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 number of bits per pixel. For example, 8-bit color and 24-bit color can mean the same system. The 8-bits refers to each red, green and blue subpixel, while the 24-bit means all three subpixels. Likewise, 10-bit color (subpixels) and 30-bit color (pixels) are the same. See indexed color and bit depth.

Bits Per Pixel    Total Colors

    4    16  (Standard VGA)
    8    256 (Super VGA, indexed color)
   15    32K (option on earlier cards)
   16    65K (High Color)
   24    16M (True Color)
   32    16M (True Color + alpha channel)
   30     1B (Deep Color)
   36    68B (Deep Color)
   48   260T (Deep Color)

References in periodicals archive ?
The number of bits in the bit-depth for digital capture equates to the number of stops or range of latitude for older film cameras.
and MP3 sources are upscaled, expanding sampling frequency and bit-depth beyond
The 10-bit HEVC processing enables greater than 1bn colours, creating smoother colour transitions that resolve colour-banding issues plaguing lower bit-depth formats.
When combined with the quad 3Gb/s input board, the Communicator software becomes a powerful input analysis tool, enabling postproduction professionals to visualize the picture content via a bit-depth analysis of the different inputs.
The solution is to increase the intensity of the transmitted light source and/or reduce the bit-depth of the images from the software interface.
HDR imagery offers a more representative description of real world lighting by storing data with a higher bit-depth per pixel than more conventional images.
Many of our customers have been asking for our uVGA-PICASO-MD1 module to support higher resolutions and a higher bit-depth of colours.
The former is determined by the sensor resolution and the latter relates to the bit-depth of the image.
DisplayPort offers twice the bandwidth of DVI, and is poised to deliver low-cost high resolution and bit-depth panels.
Chapter two contains exercises designed to familiarize readers with color space, color management, color profiles, and bit-depth.
It covers everything from identifying requirements (type of scanner, resolution, bit-depth, bundled software, etc.