Patent Document ID: 9946944
Application ID: 15450652
Patent Status: 1

Claim One:
1. An image defect detection device, comprising: image acquisition means for acquiring an original print image and a print image printed on the basis of the original print image; region division means for dividing the original print image and the print image into corresponding regions; image feature amount acquisition means for acquiring an image feature amount of each divided region; differential strength extraction means for extracting a strength of a difference of each divided region between the original print image and the print image; expected image defect value calculation means for calculating a first expected image defect value from the image feature amount of each divided region of the original print image, calculating a second expected image defect value from the strength of the difference of each divided region between the original print image and the print image, and calculating a total expected image defect value indicating a possibility of presence of a defect in each divided region of the print image from the first expected image defect value and the second expected image defect value; image defect detection order determination means for determining an order of detection of the image defect of the divided region of the print image from the total expected image defect value; and image defect detection means for detecting an image defect of the print image in the determined order.