| 摘要 |
PROBLEM TO BE SOLVED: To improve precision of an image inspection after printing for an image inspection apparatus.SOLUTION: In an image inspection unit, an imaging unit captures a print image to acquire an inspection image, and a reference image is generated based on original image data. In a first integrating unit, values of pixels aligned in a printing direction within the reference image are integrated to acquire a reference integral value distribution. The reference integral value distribution is subjected to sensitivity correction for increasing or decreasing each integral value by the sensitivity correction unit. A second integrating unit integrates values of pixels aligned in a printing direction within an inspection image to obtain an inspection integral value distribution 52. A comparison unit subtracts a reference integral value distribution 51 after sensitivity correction from the inspection integral value distribution 52 to detect defects. In this manner, the image inspection unit performs sensitivity correction to the reference integral value distribution 51 to improve inspection precision. |
