Demosaicking
Demosaicking, also called debayering, is the process of reconstructing a full-color image from the incomplete color samples captured by a digital camera’s color filter array (CFA). Most consumer sensors use a Bayer pattern, where each pixel records only one color component (red, green, or blue). The pattern contains twice as many green samples as red or blue to reflect the human eye’s greater sensitivity to luminance detail.
Because each pixel contains only one color, the missing color channels must be estimated from neighboring samples
In addition to traditional algorithms, learning-based methods, including convolutional neural networks, have become common, often producing
While Bayer remains the dominant CFA, other patterns exist (for example, X-Trans or CYGM), each requiring tailored