Luma value
Chrominance is the signal used in video systems to convey the color information of the picture, separately from the accompanying luma signal (or Y' for short). ... as Y′CbCr, the luma and chrominance components are digital sample values. ,In digital photography, computer-generated imagery, and colorimetry, a grayscale or image is one in which the value of each pixel ... But if the luma component Y' itself is instead used directly as a grayscale representation of the color image, .
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 Luma value 相關參考資料
Chroma subsampling - Wikipedia
Chroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information ... exist), these negative values will effectively be clipped, an... https://en.wikipedia.org Chrominance - Wikipedia
Chrominance is the signal used in video systems to convey the color information of the picture, separately from the accompanying luma signal (or Y' for short). ... as Y′CbCr, the luma and chromina... https://en.wikipedia.org Grayscale - Wikipedia
In digital photography, computer-generated imagery, and colorimetry, a grayscale or image is one in which the value of each pixel ... But if the luma component Y' itself is instead used directly a... https://en.wikipedia.org HSL and HSV - Wikipedia
Luma (Y′): The weighted sum of gamma-corrected R′, G′, and B′ values, and used in Y ... https://en.wikipedia.org Luma (video) - Wikipedia
https://en.wikipedia.org Luminance and Chrominance - Wolfcrow
2013年1月6日 — The simplest explanation of luminance, luma, chrominance and chroma ... All these values could (and still can) be obtained merely by varying ... https://wolfcrow.com Relative luminance - Wikipedia
Relative luminance follows the photometric definition of luminance, but with the values ... Note that relative luminance should not be confused with luma, the weighted sum of the nonlinear gamma-compr... https://en.wikipedia.org What is the difference between luma and luminance ...
2018年6月1日 — The CIE standard defines a "standard observer" (more on this later) under various conditions. This is normalised into a range from 0 to 1 or 0 to 100, where the higher value is ... https://cs.stackexchange.com YCbCr - Wikipedia
The resulting luma (Y) value will then have a nominal range from 0 to 1, and the chroma (PB and PR) values will have a nominal range from -0.5 to +0.5. https://en.wikipedia.org YUV - Wikipedia
YUV is a color encoding system typically used as part of a color image pipeline. It encodes a ... The Y′UV model defines a color space in terms of one luma component ... The closer the U and V values ... https://en.wikipedia.org |