Learning device and learning method for image signal processing

Abstract

An image signal generated by a CCD image sensor is processed by the block-generating sectionprovided in an image-signal processing section. A class tap and a prediction tap are thereby extracted. The class tap is output to an ADRC process section, and the prediction tap is output to an adaptation process section. The ADRC process sectionperforms an ADRC process on the input image signal, generating characteristic data. A classification process sectiongenerates a class code corresponding to the characteristic data thus generated and supplies the same to an adaptation process section. The adaptation process sectionreads, from a coefficient memory, the set of prediction coefficients which corresponds to the class code. The set of prediction coefficients and the prediction tap are applied, thereby generating all color signals, i.e., R, G and B signals, at the positions of the pixels which are to be processed.