Demosaicing
The reason we do demosaicing is because we actually use Single-Chip Cameras, which only get a third of the colors.
As a result, we need to interpolate the missing color values.
Demosaicing
Interpolating the missing color values to obtain RGB values for all the pixels is called demosaicing.
Isn’t it a simple Bilinear Interpolation? Yes, but there are errors. There are more advanced techniques.