| 摘要 |
An image defect detection apparatus comprises a means to prepare two replicates of inspection image from a single inspection image, the first image processing means to process an image applying the expansion filter and the contraction filter in such order for the one of replicated inspection images, the second processing means to process an image using the contraction filter and the expansion filter in such order for the other of replicated digital image information, and an image information outputting means to output image information composed of the differential value respectively outputted from the first image processing means and the second image processing means.
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