# wavelength / RGB valve per pixel

Preamble: I want to stress that I don't know anything about photo-editing or signal processing. But I am a composer who happens to be working on a project in which sound / light overlap.

Question: Am I correct in understanding that a pixel of a given image contains a single RGB value?

Many thanks.

Each intensity value at a pixel point represents the amount of light captured by a corresponding sensor at that point which is most sensitive to the given range of wavelengths (color); for example a RED value means that the associated RED sensor at that pixel captured that much of light in the wavelengths about $550$ nm to $750$ nm.