METHOD FOR INSPECTING IMAGE AND APPARATUS FOR INSPECTING IMAGE

摘要

PROBLEM TO BE SOLVED: To enable inspection of an image inexpensively, with a small-sized sensor and with high sensitivity by irradiating a body to be inspected with two color irradiation lights as a blue light and a red light are respectively stronger absorbed with an ink of yellow and fuchsine and an ink of cyan and comparing a read image with a reference image. SOLUTION: A body 2 to be inspected is irradiated with a blue LED being absorbed stronger with an ink of yellow and fuchsine in comparison with an ink of cyan and provided on a sensor part 5 and an image of the body 2 to be inspected is read and the image by the ink of yellow and fuchsine is compared with a reference image. In addition, the body 2 to be inspected is irradiated with a red LED being absorbed stronger with the ink of cyan in comparison with the ink of yellow and fuchsine and provided on a sensor part 5 and an image of the body 2 to be inspected is read and the image by the ink of cyan is compared with the reference image. By both comparisons, the image of the body to be inspected can be inspected uniformly and with high sensitivity to each color.