luminance channel

luminance channel

[′lü·mə·nəns ‚chan·əl]
(communications)
A path intended primarily for the luminance signal in a color television system.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Here, [Y.sub.dil] and [Y.sub.er] are the dilation and erosion in the luminance channel Y.
In some cases, the luminance channel of a color image can make an excellent mask.
In order to model the slow-smoke color, luminance channel is subtracted from chrominance channel and linear interpolation is performed to fit the range of values to [0,255].
We suggest this is an unintentional error as the opponent color model is usually considered to comprise a luminance channel and two chromatic channels, brightness having contributions from all three channels.
Gain Channel--serves as the setting of the luminance channel
The 39 submodels are exploited to detect image splicing in luminance channel at first.
The method keeps the image chromatic contrast, which could be lost in case of a simple luminance channel extraction.
Rather, I synthesize a luminance channel by combining all my other filtered shots into a monochrome result that can be used as a luminance image.
Once I am happy, I then integrate the Luminance channel with the RGB data using the LRGB Combination tool (Process / Color Spaces / LRGB Combination).
The luminance channel of HDR image contains information about dynamic range.
Use the H[alpha] image for the luminance channel, but with its opacity set at less than 50 percent.
If we convert a color exposure to Lab mode and then replace the L channel with a Tech Pan exposure, we should end up with exactly the same color information, but the new, finely detailed luminance channel will result in a superior image.