Inspection manner and proof comparison manner of the graphics data, the computer reading possible record media which records the check program of the graphics data and the computer reading possible record media null which records the proof comparison program

摘要

PROBLEM TO BE SOLVED: To provide an inspection method of picture data which enables surely finding out even a fine difference, is low-cost and corresponds to CTP method. ;SOLUTION: This inspection method of picture data is constituted in such a manner that one picture data which is compared and contrasted is positively exposed, at the same time, the other picture data is negatively exposed with respect to the same plate and, based on the remaining picture part on the plate, the difference from the picture data which is compared and contrasted is judged.;COPYRIGHT: (C)2001,JPO