US Patent 7564594 Digital multifunctional imaging apparatus

In a digital multifunctional apparatus, enlargement/reduction parameters for respective pixels are calculated by an image processing circuit multiplying a length enlargement/reduction ration output from a CPU by pixel numbers of an image read by an image sensor, in which the pixel numbers are counted form a starting pixel of the image reading. A pixel counter counts integer portion C of each enlargement/reduction parameter. When the integer portion C of the calculated enlargement parameter of a respective pixel increases by at least two from that of the preceding pixel, a pixel supplement circuit supplements one image data to enlarge the image data. When the counted integer portion C of the calculated reduction parameter of a respective pixel is unchanged form that of the preceding pixel, the image processing circuit removes the image data of the respective pixel to reduce the image data.