Method of and apparatus for copying originals in which an image

Method of and apparatus for correcting a read position error in

Method of and apparatus for correcting image signal

Method of and apparatus for correcting the output signals of an

Method of and apparatus for detecting pixels constituting dotted

Method of and apparatus for determining the sharpness of a pictu

Method of and apparatus for determining whether an original is p

Method of and apparatus for electronic contrast enhancement of r

Method of and apparatus for eliminating false image

Method of and apparatus for eliminating interblock distortion du

Method of and apparatus for eliminating pin holes

Method of and apparatus for establishing highlight and shadow de

Method of and apparatus for facsimile communications

Method of and apparatus for facsimile sheet feeding

Method of and apparatus for feeding and positioning material to

Method of and apparatus for forming halftone dots

Method of and apparatus for forming halftone images

Method of and apparatus for generating conversion curve employab

Method of and apparatus for generating correction table for imag

Method of and apparatus for generating halftone dots