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It must be noted that not all systems using 16-bit color depth employ the 16-bit, 32-64-32 level RGB palette. Platforms like the Sharp X68000 home computer or the Neo Geo video game console employs the 15-bit RGB palette (5 bits are used for red, green, and blue), but the last bit specifies a less significant intensity or luminance.
This is a list of software palettes used by computers. Systems that use a 4-bit or 8-bit pixel depth can display up to 16 or 256 colors simultaneously. Many personal computers in the early 1990s displayed at most 256 different colors, freely selected by software (either by the user or by a program) from their wider hardware's RGB color palette.
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).
With the predominance of 24-bit displays, the use of the full 16.7 million colors of the HTML RGB color code no longer poses problems for most viewers. The sRGB color space (a device-independent color space [23]) for HTML was formally adopted as an Internet standard in HTML 3.2, [24] [25] though it had been in use for some time before that.
The Atari ST series has a digital-to-analog converter of 3-bits, eight levels per RGB channel, featuring a 9-bit RGB palette (512 colors).Depending on the (proprietary) monitor type attached, it displays one of the 320×200, 16-colors and 640×200, 4-colors modes with the color monitor, or the high resolution 640×400 black and white mode with the monochrome monitor.
This is exactly 5 times the color resolution of 8-bit sRGB, and 8-bit sRGB can be converted directly with 5x + 1024. The linear range is clamped to the slightly larger −0.6038..7.5913 . A 12-bit encoding called scYCC-nl is the conversion of the non-linear sRGB levels to JFIF-Y'CbCr and then converted by 1280 Y ′ + 1024 , 1280 Cb + 2048 ...
0x01 dithered: image has packed RGB. First 3 bits are for R channel, next 3 bits are G channel, and last 2 bits are for B channel. 0x02 screen: image uses colormap. Pixel data is index in color map and image only have 1 channel. 0x03 colormap: file only have data for one color map (can use for different image file). This file no have image data ...
OpenGL mandates support for an analogous RGB9_E5 color (not render) format, where three channels have 9 bits of mantissa each and share 5 bits of exponent. [2] JPEG XT Part 2 (Dolby JPEG-HDR) and Part 7 Profile A are based on the RGBE format. RGBM is a format with the exponent replaced with a shared multiplier, while RGBD stores a divider instead.