... Green learning Representation learning Feature generation Weak supervision In digital imaging, each pixel on an image sensor is usually designed to capture only one color channel: red, green or blue. Digital cameras use a color filter array (CFA), which places microscopic filters over pixels...

... an extensive review, beginning from earlier works using traditional image processing techniques and reaching up to modern approaches following the Deep Learning (DL) paradigm. Our review also focuses on the weak supervision aspect of the problem, motivated by the fact that annotated data is scarce. At the end...