Picture information converting apparatus and method, coefficient calculating apparatus and method, the coefficient data and the coefficient data storage, image quality degradation point detecting device and method, recording medium, and program

摘要

PROBLEM TO BE SOLVED: To reduce a deterioration in image qualities when composite signals are converted into component signals.;SOLUTION: The absolute values of the differences between an elementary pixel P51 and its top-side adjacent pixel P52, between the pixel P51 and its bottom-side adjacent pixel P53, between the pixel P51 and its left-side adjacent pixel P54, and between the pixel P51 and its right-side adjacent pixel P57, are found, and a pattern of 6 bits in total is found by setting the absolute values to '1' when the values are larger than a threshold or '0' when the values are smaller than the threshold.;COPYRIGHT: (C)2004,JPO