Patent ID: 7643072

Claim:
A signal processing method for an image capturing apparatus, the signal processing method comprising: an image signal acquisition step for acquiring image signals from an image capturing element; an information acquisition step for acquiring one or more pieces of information among: transfer efficiency of the image capturing element, sensitivity of a camera upon photography, a drive frequency of the image capturing element, a WB parameter related to white balance correction of the acquired image signal, a number of pixels of the acquired image signal, an interior temperature of the camera or the temperature of the image capturing element upon photography, a CCD color filter array of the image capturing element; wherein the information acquisition step acquires at least the transfer efficiency; and a signal processing step for performing signal processing on the acquired image signals, the signal processing step which includes a processing for performing a matrix processing of the acquired image signals and a matrix coefficient to perform color correction, and changes the matrix coefficient of the matrix processing according to one or more pieces of acquired information among the transfer efficiency, the camera sensitivity, the drive frequency, the WB parameter, the number of pixels, the temperature and the CCD color filter array to suppress deterioration of image quality due to degradation of the transfer efficiency.