| 摘要 |
A method for determining an edge of an overlapping region (2) of a color filtration block (1) and a black matrix (3), comprising: drawing an original grayscale value curve and a difference grayscale value curve of a measurement region to be detected (9), and determining an extreme value of the difference grayscale value curve; acquiring a grayscale value of the overlapping region (2) between the color filtration block (1) and the black matrix (3); building a threshold value; acquiring two extreme values that are respectively closest to two intersection points on the difference grayscale value curve, and determining the edge of the overlapping region (2) of the color filtration block (1) and the black matrix (3) according to the two extreme values. |
