Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to chrominance: chrominance channel


The difference between one color and a reference color of the same brightness and chromaticity.

[Blend of chromo- and luminance.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (General Physics) the quality of light that causes the sensation of colour. It is determined by comparison with a reference source of the same brightness and of known chromaticity
2. (Broadcasting) the information that defines the colour (hue and saturation) of a television image, but not the brightness
[C20: from chromo- + luminance]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈkroʊ mə nəns)

the difference in color quality between a color and a reference color that has an equal brightness and a specified chromaticity.
[1950–55; chrom (atic) + (lum) inance]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Video Decoder Market: Segmentation Segmentation of the Video Decoder Market Based on Components of the Video Decoder: Analog processors Y/C (luminance/chrominance) separation Chrominance processor Luminance processor Clock/timing processor A/D converters for Y/C Output formatter Host communication interface Segmentation of the Video Decoder Market Based on End-users: Education Manufacturing BFSI Healthcare IT & Telecommunication Energy Retail Transportation Others Video Decoder Market: Competitive Landscape Examples of some of the key players operating in the video decoder market are Axis Communications AB, Matrox Graphics Inc., Honeywell Security Group, Cisco Systems, Inc., Bosch Security Systems, Pelco Corporation, Harmonic Inc., Vitec Group and Teleste Corporation.
Its colour version, known as FSIMc, contains the additional factor (with the exponent [gamma]), where the same formulas are applied for both chrominance components in YIQ colour space.
[7] proposed a universal color model for fire pixel detection, and the algorithm used the YCbCr color space to separate chrominance and luminance components more effectively than other color spaces (such as RGB).
Another color conversion is used such as YCbCr color system to give the luminance information Y or chrominance information Cb and Cr [26].
Chen, "Stereoscopic video coding with asymmetric luminance and chrominance qualities," IEEE Trans.
As we become hypnotized by this magical little anomaly, chromatic bands glide across the frame, reconfiguring its glowing palette while referencing the color bars that guide televisual chrominance and luminance.
By using the luminance and chrominance channels of the combined colour texture information, complementary low-level feature descriptions are extracted from a variety of colour spaces; the feature descriptions from each image band are combined to produce a feature histogram.
Noisy image is converted into luminance chrominance (YCbCr) color space by matrix transformation as
Since the human visual system is more sensitive to the luminance channel, we use the superresolution reconstruction method based on dictionary learning proposed in this study to reconstruct the images in the luminance channel, and the images in the Cb and Cr chrominance channels are simply magnified by the bicubic interpolation method.
The study of [90] proposed an algorithm for converting the RGB image into the grey-scale image which can do RGB approximation, reduction, and addition of luminance and chrominance and sustain the structure, sharpness, contrast, and shadow of the original RGB color image in the resultant image.
Since Y is a luminance component, [C.sub.b] and [C.sub.r] are chrominance components.
(10) Reconstruction of the watermarked video frame is done using the watermarked luminance part and the original frame chrominance parts Cb and Cr, by conversion from the YCbCr into the RGB color space.