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Dual string scrollers use 2 strings (one behind the other) and allow for a form of CMY mixing. The Apollo MXR 2, Chroma-Q Cascade and the Wybron CXI use 2 gel strings to obtain a CMY mix. One frame of clear gel is positioned at the center of each gel string (50% DMX) with progressively denser frames of colour positioned to either side of it.
Note that the I and Q chroma coordinates are scaled up to 1.0. See the formulae below in the article to get the right bounds. An image along with its Y, I, and Q components. YIQ is the color space used by the analog NTSC color TV system. I stands for in-phase, while Q stands for quadrature, referring to the components used in quadrature ...
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 ...
Hi-Color / Multitech ZX Spectrum "8 × 1" attributes / Hicolour display Several third-party Spectrum clones, including the Timex Sinclair machines, [ 27 ] [ 28 ] the Pentagon , the eLeMeNt ZX , and the MB03+ Ultimate interface support a screen mode named Hi-Color , [ 28 ] in which attribute blocks are 8 × 1 pixels in size rather than the usual ...
Example of U-V color plane, Y′ value = 0.5, represented within RGB color gamut An image along with its Y′, U, and V components respectively. Y′UV, also written YUV, is the color model found in the PAL analogue color TV standard. A color is described as a Y′ component and two chroma components U and V.
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 .
However, because of limited bandwidth in the video channel, the chrominance and luminance signals bleed into each other considerably, causing the colour information to appear as chroma crawl or chroma dots on black-and-white television sets. [1] This phenomenon is normally considered a nuisance in analogue broadcasting. [9]
Chromolithography is a method for making multi-colour prints.This type of colour printing stemmed from the process of lithography, [1] and includes all types of lithography that are printed in colour.