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What (who) is colour depth - definition

RANGE OF COLORS IN A DISPLAY

Colour depth; Bits per pixel; 32-bit color; 16 million colors; 24-bit color; Pixel depth; 24 bit colour; 64-bit color; 64bit color; 64 bit color; 40 bit color; 40bit color; 40-bit color; 48-bit color; 56-bit color; 12-bit color; 6-bit color; 4-bit color; 2-bit color; 2bit color; 2bit colour; 2-bit colour; 2 bit color; 2 bit colour; 4 bit color; 4 bit colour; 6bit color; 4bit colour; 6 bit color; 4-bit colour; 12 bit color; 6-bit colour; 12bit color; 6 bit colour; 6bit colour; 48 bit color; 12bit colour; 48bit color; 12 bit colour; 56bit color; 12-bit colour; 56 bit color; 40bit colour; 40 bit colour; 40-bit colour; 48-bit colour; 48 bit colour; 48bit colour; 56bit colour; 64bit colour; 56 bit colour; 64 bit colour; 56-bit colour; 64-bit colour; 24 bit color; 24bit color; 24bit colour; 24-bit colour; 32-bit colour; 32bit colour; 32 bit colour; 32 bit color; 32bit color; Color bits; Deep color; Millions of colors; Image depth; Deep Colour; Bits Per Pixel; Colour Depth; Deep colour; DeepColor; DeepColour; Real color; Deep Color; Pixel bit-depth; Pixel bit depth; Bits per color; Bits per sample; Bits per channel; Bits per pixel component; Bits per component; Bits-per-pixel; Bits-per-pixel component; Bits-per-component; Bits per color channel; Bits-per-color channel; Bits-per-channel; Direct color; 16 colors; Radiometric resolution; 16 colours

colour depth

bits per pixel

bits per pixel

<hardware, graphics> (bpp) The number of bits of information stored per pixel of an image or displayed by a {graphics adapter}. The more bits there are, the more colours can be represented, but the more memory is required to store or display the image. A colour can be described by the intensities of red, green and blue (RGB) components. Allowing 8 bits (1 byte) per component (24 bits per pixel) gives 256 levels for each component and over 16 million different colours - more than the human eye can distinguish. Microsoft Windows [and others?] calls this truecolour. An image of 1024x768 with 24 bpp requires over 2 MB of memory. "High colour" uses 16 bpp (or 15 bpp), 5 bits for blue, 5 bits for red and 6 bits for green. This reduced colour precision gives a slight loss of image quality at a 1/3 saving on memory. Standard VGA uses a palette of 16 colours (4 bpp), each colour in the palette is 24 bit. Standard SVGA uses a palette of 256 colours (8 bpp). Some graphics hardware and software support 32-bit colour depths, including an 8-bit "alpha channel" for transparency effects. (1999-08-01)

Color depth

Color depth or colour depth (see spelling differences), also known as bit depth, is either the number of bits used to indicate the color of a single pixel, or the number of bits used for each color component of a single pixel. When referring to a pixel, the concept can be defined as bits per pixel (bpp).

https://en.wikipedia.org/wiki/Color_depth

Wikipedia

Color depth

Color depth or colour depth (see spelling differences), also known as bit depth, is either the number of bits used to indicate the color of a single pixel, or the number of bits used for each color component of a single pixel. When referring to a pixel, the concept can be defined as bits per pixel (bpp). When referring to a color component, the concept can be defined as bits per component, bits per channel, bits per color (all three abbreviated bpc), and also bits per pixel component, bits per color channel or bits per sample (bps). Modern standards tend to use bits per component, but historical lower-depth systems used bits per pixel more often.

Color depth is only one aspect of color representation, expressing the precision with which the amount of each primary can be expressed; the other aspect is how broad a range of colors can be expressed (the gamut). The definition of both color precision and gamut is accomplished with a color encoding specification which assigns a digital code value to a location in a color space.

The number of bits of resolved intensity in a color channel is also known as radiometric resolution, especially in the context of satellite images.

https://en.wikipedia.org/wiki/Color depth