chrominance

[′krō·mə·nəns]

(optics)

The difference between any color and a specified reference color of equal brightness; in color television, this reference color is white having coordinates x = 0.310 and y = 0.316 on the chromaticity diagram.

chroma

Short for "chrominance" or color information, which includes its hue (color) and saturation (shade/brightness). Chroma is not a term most people hear or see very often, but it is not entirely hidden (see caption below). See hue and saturation.

Chroma Setting on the Apple TV

The video in this Apple TV media hub is currently set to 4:2:0, which means the color signals are sampled at half the resolution of the brightness (see chroma subsampling). See Apple TV and digital media hub.

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References in periodicals archive

A wide set of colour spaces have been considered to model the skin chrominance (Vezhnevets et al., 2003)(Kakumanu et al., 2007).

Facial forehead wrinkles detection using colour based skin segmentation

We introduced an improved physiological model of the FIT by using light level analysis in order to give different weights to chrominance components in an enhanced Y[C.sub.b][C.sub.r] space.

Pop-out: a new cognitive model of visual attention that uses light level analysis to better mimic the free-viewing task of static images

YCbCr: The Y element represents the luminance component and the Cb Cr elements represent two chrominance components.

CLASSIFICATION OF RICE GRAIN VARIETIES USING TWO ARTIFICIAL NEURAL NETWORKS (MLP AND NEURO-FUZZY)

(i) The luminance-chrominance spaces, which are computed of one color component that represents the luminance and two color components that represent the chrominance: the YUV color space is an example of the luminance-chrominance spaces.

Color image segmentation based on different color space models using automatic GrabCut

First, it performs a spatial processing, dividing each frame into horizontal slots 16 pixels wide, each slot in turn is divided into "macro blocks" of 16 x 16 pixels, each macro block is composed of blocks of 8 x 8 pixels, which can be luminance and/or chrominance blocks (Cr + Cb).

IPTV: next-generation network technologies and protocols/IPTV: tecnologias y protocolos orientados a redes de proxima generacion

Indeed, since the human eye perceives an image mostly in the Y band (brightness) with respect to the U and V bands (chrominance), we can use a stronger compression rate for coding the image in U and V bands with respect to that one used for coding the image in the Y band, without loss of information in the reconstructed image.

Coding B-frames of color videos with fuzzy transforms

In spite of different intensities, human epidermis has slight chrominance variations (DAI; NAKANO, 1996; VEZHNEVETS, 2002).

Development of a toolkit in Silverlight to detect physiognomies in real time/Desenvolvimento de um toolkit em Silverlight para deteccao de faces em tempo real

Within the PCR, three RM-HP790 JVC camera control units control the three new cameras individually for colour temperature, chrominance, luminance and contrast of the camera signal.

Lights! Camera! Academics!

The VC1080 provides chrominance and Luminance separation for composited video, and deinterlacing for smooth video playback.

Connecting learners, on campus and off: considerations for purchasing, using, and maintaining digital signage and video and web conferencing technology