Patent ID: 9542737
Date: 2017-01-10
CPC Classifications: G01N,G06F,G06K,G06T,H04N

Claim:
1. An image inspecting apparatus for comparing first image data created as data representing a reference-image acting as an inspecting reference with second image data created as data representing an inspection-image acting as a target to automatically extract a difference between the first image data and the second image data, comprising: a storage means for storing the reference-image and the inspection-image; an image processing means for establishing correspondences between at least a part of the stored reference-image as the first image data with at least a part of the stored target image as the second image data at a pixel level to perform an image matching processing of them; a difference detecting means for comparing the image-matched first and second image data to detect a difference between the first and second image data; and an image inspecting means for producing a plurality of image data by comparing the difference with a plurality of threshold values, each of the image data including a plurality of pixels defining a single image, by fluctuating the threshold value at each partial region, to the detected difference to thereby perform an image inspecting process.