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Chrominance ( chroma or C for short) is the signal used in video systems to convey the color information of the picture (see YUV color model), separately from the accompanying luma signal (or Y' for short). Chrominance is usually represented as two color-difference components: U = B′ − Y′ (blue − luma) and V = R′ − Y′ (red − luma).
MM2 may refer to: MM2, a class of force fields; see force field (chemistry) MM2 (MMS), an interface utilized by the Multimedia Messaging Service standard. Mega Man 2, a 1988 video game for the NES. Mega Man II (Game Boy), a 1991 video game for the Game Boy. Midtown Madness 2, a 2000 video game for the PC. Motocross Madness 2, a 2000 video game ...
Chroma subsampling. Widely used chroma subsampling formats. Chroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system's lower acuity for color differences than for luminance. [1]
Luma is the weighted sum of gamma-compressed R′G′B′ components of a color video—the prime symbols ′ denote gamma compression. The word was proposed to prevent confusion between luma as implemented in video engineering and relative luminance as used in color science (i.e. as defined by CIE ). Relative luminance is formed as a weighted ...
Chromatic value. In 1942, Adams suggested chromatic value color spaces. [2] [3] Chromatic value, or chromance, refers to the intensity of the opponent process responses and is derived from Adams' theory of color vision. [4] [5] [6] A chromatic value space consists of three components: the Munsell–Sloan–Godlove value function: , the red ...
Chroma feature. (a) Musical score of a C-major scale. (b) Chromagram obtained from the score. (c) Audio recording of the C-major scale played on a piano. (d) Chromagram obtained from the audio recording. In Western music, the term chroma feature or chromagram closely relates to twelve different pitch classes.
CIECAM02. Observing field model. Not drawn to scale. In colorimetry, CIECAM02 is the color appearance model published in 2002 by the International Commission on Illumination (CIE) Technical Committee 8-01 ( Color Appearance Modelling for Color Management Systems) and the successor of CIECAM97s. [1]
The Primatte chromakey algorithm is a method of color space segmentation, where Primatte segments all the colors in the foreground image into one of four separate categories. The result is a 'spill suppressed' foreground image and a matte which is used to apply the modified foreground to a suitable background. Primatte works in 3D RGB color space.