Picture processing controller

Abstract

PURPOSE: To reduce number of input output signal lines of a picture processing controller LSI binarizing a picture signal subject to photoelectric conversion by a image sensor. CONSTITUTION: Since an LSI composed of an ununiformity correction circuit 2, a resolution compensation circuit 3, a character background level detection circuit 4, a dither processing control circuit 5, an image area separation circuit 6 and a binarizing circuit 7 incorporates an A/D converter 1 and a storage circuit 8, the controller has a reduction effect of a digital input signal because of absence of an external A/D converter and a reduction effect of data input output signal because of non-use of an external storage circuit. COPYRIGHT: (C)1992,JPO&Japio

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