Apparatus for and method of correcting output signal of linear image sensor

摘要

An odd- and even-numbered pixel level difference correction process with respect to a linear image sensor is carried out by a successive three pixel weighted moving average calculating unit (71) according to the equation: $where\; S\; represents\; a\; pixel\; signal\; to\; be\; corrected,\; Sc\; a\; corrected\; pixel\; signal,\; Sp\; a\; preceding\; pixel\; signal\; which\; precedes\; the\; pixel\; signal\; to\; be\; corrected,\; Sa\; a\; following\; pixel\; signal\; which\; follows\; the\; pixel\; signal\; to\; be\; corrected,\; and\; U\; an\; average\; of\; the\; preceding\; and\; following\; pixel\; signals.\; The\; odd-\; and\; even-numbered\; pixel\; level\; difference\; correction\; process\; can\; produce\; corrected\; image\; data\; whose\; waveform\; center\; of\; gravity\; remains\; positionally\; unshifted\; unlike\; a\; conventional\; correction\; process\; which\; corrects\; a\; pixel\; signal\; using\; only\; the\; pixel\; signal\; to\; be\; corrected\; and\; the\; preceding\; pixel\; signal.$