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chrominance
This term is a technical portmanteau of chroma and luminance, used almost exclusively in the fields of video engineering, signal processing, and digital imaging. It describes the color-carrying component of a video signal, which is processed separately from the brightness (luminance) to allow for more efficient data compression.
In professional contexts, it is often contrasted with luminance (Y) to explain how color is encoded in formats like YCbCr. Because it refers to a specific property of a signal, it is treated as an uncountable mass noun and does not have a plural form in standard technical usage.
Meanings
Examples
The video signal is split into luminance and chrominance components.
We need to adjust the chrominance levels to fix the color bleeding in this shot.
Chrominance subsampling reduces the bandwidth required for the video stream.
I wonder if the chrominance noise is caused by a faulty cable.
The engineer explained how chrominance differs from luminance in a YUV system.
Check the chrominance channel for any unexpected color shifts.
The old analog broadcast used a specific subcarrier for chrominance information.
Too much chrominance compression can lead to blocky artifacts in red areas.
Is the chrominance signal properly synchronized with the brightness data?
Is the chrominance signal properly synchronized with the brightness data?