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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). Each of these different components may have scale factors and offsets applied to it, as specified by the applicable video standard.
In composite video signals, the U and V signals modulate a color subcarrier signal, and the result is referred to as the chrominance signal; the phase and amplitude of this modulated chrominance signal correspond approximately to the hue and saturation of the color. In digital-video and still-image color spaces such as Y′CbCr, the luma and chrominance components are digital sample values.
Separating RGB color signals into luma and chrominance allows the bandwidth of each to be determined separately. Typically, the chrominance bandwidth is reduced in analog composite video by reducing the bandwidth of a modulated color subcarrier, and in digital systems by chroma subsampling.
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...
region). Usually, 4. a: number of chrominance samples (Cr, Cb) in the first row of J pixels. b: number of changes of chrominance samples (Cr, Cb) between first...
ISBN 9781936239719. "April March, Chrominance Decoder". PopMatters, Sarah Zupko The Daily Vault Music Reviews : Chrominance Decoder Alicia St. Rose February...
the chrominance signal fall exactly in between the horizontal line-rate modulation components of the luminance signal, such that the chrominance signal...
video is composite video because luminance (luma, monochrome image) and chrominance (chroma, colour applied to the monochrome image) are transmitted together...
to the intermodulation of the chrominance and luminance components of the signal. This is usually seen when chrominance is transmitted with high bandwidth...
digital luminance–chrominance format based on YPBPR. The use of YCBCR also allows computers to perform lossy subsampling with the chrominance channels (typically...
brightness, the luminance data for all pixels is maintained, while the chrominance data is averaged for a number of pixels in a block, and the same value...
in the 1950s. A practical television system needs to take luminance, chrominance (in a color system), synchronization (horizontal and vertical), and audio...
The chrominance subcarrier is a separate subcarrier signal that carries the color information during transmission of a composite video signal. It is modulated...
typically include these: Analog processors Y/C (luminance/chrominance) separation Chrominance processor Luminance processor Clock/timing processor A/D...
take two forms: chrominance interference in luminance (chrominance being interpreted as luminance), luminance interference in chrominance. Dot crawl is...
video signal generated by a video-signal generator used to keep the chrominance subcarrier synchronized in a color television signal. By synchronizing...
space are the missing color, the null-luminance plane, and the null-chrominance plane. The description of the phenomena itself does not indicate the...
used for setting a television monitor or receiver to reproduce NTSC chrominance and luminance information correctly. A precursor to the SMPTE test pattern...
visualize chrominance, which is encoded into the video signal as a subcarrier of specific frequency. The vectorscope locks exclusively to the chrominance subcarrier...
is composite video because the luminance (luma, monochrome image) and chrominance (chroma, color applied to the monochrome image) are transmitted together...
luma value (denoted as Y) and two chroma values called chrominance green (Cg) and chrominance orange (Co). It is supported in video and image compression...
media related to Chromatic diagrams. CIE xyY (chromaticity diagram) Chrominance rg chromaticity Impossible color Color index in astronomy In modern terminology...
invented and patented a method of transmitting color images via luma and chrominance so that they could be received on both color and black & white television...
Components (MAC) was an analog television standard where luminance and chrominance components were transmitted separately. This was an evolution from older...
full bandwidth (13.5 MHz in 270 Mbit/s SD, ~75 MHz in HD), and the two chrominance channels (Cb and Cr) are subsampled horizontally and encoded at half...
SECAM Video Back porch and front porch Black level Blanking level ChrominanceChrominance subcarrier Colorburst Color killer Color TV Composite video Frame...
the brightness of a pixel, and the CB and CR components represent the chrominance (split into blue and red components). This is basically the same color...
reframe the image. Where composite video is in use, the phase of the chrominance subcarrier of each source being combined or switched should also be coincident...
photosensors luminance-sensitive elements and the red and blue ones chrominance-sensitive elements. He used twice as many green elements as red or blue...