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mm² is a short form for square millimeter, an international unit of area.. Mm² is a short form for square megameter, also an international unit of area.. MM2 may refer to: . MM2, a class of force fields; see force field (chemistry)
HCL (Hue-Chroma-Luminance) or LCh refers to any of the many cylindrical color space models that are designed to accord with human perception of color with the three parameters. Lch has been adopted by information visualization practitioners to present data without the bias implicit in using varying saturation .
Chroma: A Queer Literary Journal, a UK-based journal; Chroma, a short story collection by Frederick Barthelme; Chroma, a book by Derek Jarman; Chroma, a character in The Phantom Tollbooth by Norton Juster
Luminance only, Chrominance only, and full color image. 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).
This TVR Tuscan Speed Six in Japan is painted with a ChromaFlair pigment, marketed in Japan as Maziora. Video of the color change effect. ChromaFlair is a pigment used in paint systems, primarily for automobiles.
In all formats other than Y′IQ, each chroma component is a scaled version of the difference between red/blue and Y; the main difference lies in the scaling factors used, which is determined by color primaries and the intended numeric range (compare the use of U max and V max in § SDTV with BT.470 with a fixed 1 / 2 in YCbCr § R'G'B ...
Chroma key compositing, or chroma keying, is a visual-effects and post-production technique for compositing (layering) two or more images or video streams together based on color hues (chroma range). The technique has been used in many fields to remove a background from the subject of a photo or video – particularly the newscasting , motion ...
Luma alone does not perfectly represent luminance; accurate luminance requires both accurate luma and chroma. Hence, errors in chroma "bleed" into the luminance of an image. Note the bleeding in lightness near the borders. Due to the widespread usage of chroma subsampling, errors in chroma typically occur when it is lowered in resolution ...