Image processing apparatus having function of enlargement and/or shrinkage of image.

摘要

The image processor apparatus comprises for performing a shrinking operation and input means for receiving a plurality of bits which represent an image to be shrinked; a plurality of gate circuits gating such different numbers of bits among said bits receiving by said input means according to a shrinking scale factor that are less than the number of the bits received by said input means; means for selecting one of said gate circuits according to the shrinking scale factor to activate the selected gate circuit and an output means for coupled to said gate circuits for outputting a bit or bits which pass through the selected gate circuit. For the performance of an enlarging operation the apparatus comprises an input means for receiving a plurality of input bits representing an image to be enlarged; a shift means coupled to said input means for shifting said input bits by a bit number determined by an enlargement scale factor; a plurality of gate circuits gating a plurality of bits which are same in number as said input bits and contain two or more bits having the same content as that of at least first bit of said input bits or the shifted input bits; a means for selecting one of said gate circuits according to said enlargement scale factor to activate the selected gate circuit; and an output means coupled to said gate circuits for outputting the bits which pass through the selected gate.