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SDL Wiki Bot
2024-12-18 06:22:41 +00:00
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commit 5608bf5866
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include/SDL3/SDL_pixels.h
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@@ -39,29 +39,29 @@
* understands two different color types, RGB and YCbCr, or in SDL also
* referred to as YUV.
*
* RGB colors consist of red, green, and blue channels of color that are
* added together to represent the colors we see on the screen.
* RGB colors consist of red, green, and blue channels of color that are added
* together to represent the colors we see on the screen.
*
* https://en.wikipedia.org/wiki/RGB_color_model
*
* YCbCr colors represent colors as a Y luma brightness component and red and
* blue chroma color offsets. This color representation takes advantage of
* the fact that the human eye is more sensitive to brightness than the color
* in an image. The Cb and Cr components are often compressed and have lower
* blue chroma color offsets. This color representation takes advantage of the
* fact that the human eye is more sensitive to brightness than the color in
* an image. The Cb and Cr components are often compressed and have lower
* resolution than the luma component.
*
* https://en.wikipedia.org/wiki/YCbCr
*
* When the color information in YCbCr is compressed, the Y pixels are left
* at full resolution and each Cr and Cb pixel represents an average of the
* color information in a block of Y pixels. The chroma location determines
* where in that block of pixels the color information is coming from.
* When the color information in YCbCr is compressed, the Y pixels are left at
* full resolution and each Cr and Cb pixel represents an average of the color
* information in a block of Y pixels. The chroma location determines where in
* that block of pixels the color information is coming from.
*
* The color range defines how much of the pixel to use when converting a
* pixel into a color on the display. When the full color range is used, the
* entire numeric range of the pixel bits is significant. When narrow color
* range is used, for historical reasons, the pixel uses only a portion of
* the numeric range to represent colors.
* range is used, for historical reasons, the pixel uses only a portion of the
* numeric range to represent colors.
*
* The color primaries and white point are a definition of the colors in the
* color space relative to the standard XYZ color space.