IMAGE INSPECTION APPARATUS, IMAGE FORMING APPARATUS, IMAGE INSPECTION METHOD, AND STORAGE MEDIUM

原文（中国語）

An image inspection apparatus includes a scanning unit that scans a sheet conveyed from an image forming unit. The apparatus compares a scanned overall image of the sheet with a reference image to detect misalignment in image formation. Based on the misalignment, it aligns the scanned image with the reference image to generate a first image. The first image is then compared with the reference image to detect local distortions in different parts of the image. Based on the detected distortions, the apparatus performs local alignment to generate a second image. It then calculates distortion amounts for each part and determines whether the image is normal based on these values. This enables determination of image normality based on both misalignment and distortion.