Patent Document ID: 9767546
Application ID: 14358178
Patent Status: 1

Claim One:
1. An image inspection apparatus configured to check a target image printed on a recording medium, the image inspection apparatus comprising: a memory having computer-readable instructions stored therein; and a processor configured to execute the computer-readable instructions to, generate a reference image from image data of the target image; obtain a first pixel value from the reference image; extract an image-printed area from a read image of the target image containing the recording medium on which the target image to be checked is printed and a conveying body conveying the recording medium; obtain a second pixel value from the image-printed area of the read image to be checked; generate an image of a non-image-printed area containing a third pixel value with which it can be determined that the third pixel value is associated with the non-image-printed area, the third pixel value being different from the first pixel value and the second pixel value; add the image of the non-image-printed area so as to surround the reference image on the periphery of the reference image with the non-image-printed area; compare respective pixel values of the read image and the reference image; determine whether each of the respective pixel values are associated with the image-printed area or the non-image-printed area; detect an error in the printed target image associated with the image-printed area in response to a difference between the first pixel value and the second pixel value being higher than a threshold value; and ignore an error in the printed target image associated with the non-image-printed area based on the third pixel value.