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8-bit color, with three bits of red, three bits of green, and two bits of blue. In order to turn a true color 24-bit image into an 8-bit image, the image must go through a process called color quantization. Color quantization is the process of creating a color map for a less color dense image from a more dense image.
The Tiki 100 uses an 8-bit RGB palette (also described as 3-3-2 bit RGB), with 3 bits for each of the red and green color components, and 2 bits for the blue component. It supports 3 different resolutions with 256, 512 or 1024 by 256 pixels and 16, 4, or 2 colors respectively (freely selectable from the full 256-color palette).
In an 8-bit color palette each pixel's value is represented by 8 bits resulting in a 256-value palette (2 8 = 256). This is usually the maximum number of grays in ordinary monochrome systems; each image pixel occupies a single memory byte.
24 bits almost always use 8 bits each of R, G, and B (8 bpc). As of 2018, 24-bit color depth is used by virtually every computer and phone display [citation needed] and the vast majority of image storage formats. Almost all cases of 32 bits per pixel assigns 24 bits to the color, and the remaining 8 are the alpha channel or unused.
The most common incarnation in general use as of 2021 is the 24-bit implementation, with 8 bits, or 256 discrete levels of color per channel. [7] Any color space based on such a 24-bit RGB model is thus limited to a range of 256×256×256 ≈ 16.7 million colors.
The main characteristic of all of them is the quantization of the possible values per component (technically a sample) by using only integer numbers within some range, usually from 0 to some power of two minus one (2 n − 1) to fit them into some bit groupings. Encodings of 1, 2, 4, 5, 8, and 16 bits per color are commonly found; the total ...
Sixteen bits per sample (65,536 levels) is often a convenient choice for such uses, as computers manage 16-bit words efficiently. The TIFF and PNG (among other) image file formats support 16-bit grayscale natively, although browsers and many imaging programs tend to ignore the low order 8 bits of each pixel. Internally for computation and ...
In 8-bit Y'C' B C' R, black is (16, 128, 128) and white is (235, 128, 128). Quantized color coordinates outside the nominal ranges above are allowed, but typically they would be clamped for broadcast or for display (except for Superwhite and xvYCC). However, the 8-bit values 0 and 255 and the 10 bit values 0..3 and 1020..1023 are reserved for ...