IMAGE PICKUP APPARATUS EQUIPPED WITH COMPATIBLE-WITH-ZOOMING TYPE CONTOUR COMPENSATION CIRCUIT, COMPATIBLE-WITH-IMAGE-PICKUP-CONDITIONS TYPE IMAGE OUTPUT CIRCUIT, AND COMPATIBLE-WITH-ALL-PIXEL-READOUT-SYSTEM-SOLID-IMAGE-PICKUP-ELEMENT TYPE ELECTRONIC ZOOM CIRCUIT

摘要

A frame/field converter circuit addition-processes image data constituting respective fields in a ratio corresponding to an image pickup mode or the like and outputs the resulting image data. As a result of this, it is possible to perform addition processing on image data constituting respective fields in an optimum ratio corresponding to an image pickup mode or the like and output the resulting image data. This makes it possible to improve the frequency characteristic and S/N ratio of the image and thereby enhance the quality of the displayed image. A contour compensation circuit performs contour compensation processing with respect to the frequency band of the image data in correspondence with the zoom magnification. As a result of this, it is possible to mitigate the level of the return noises generated in correspondence with the zoom magnification and thereby prevent the deterioration of the frequency characteristic and S/N ratio of the image to thereby enhance the quality of the image. An electronic zoom circuit performs zoom processing according to both of even-line data and odd-line data output from an all-pixel readout system solid image pickup element.