| 摘要 |
PROBLEM TO BE SOLVED: To regularly stably extract an object at high speed. SOLUTION: This image processor comprises a lighting part 201; an imaging part 202; an optimum lighting parameter calculating means for calculating an optimum lighting intensity; an optimum threshold calculating processing means for calculating an optimum threshold on the basis of the image when lighting the object 11 or a background 12 at a low lighting intensity or extinguishing the lighting part 201 and the image when lighting the object 11 or background 12 at the optimum lighting intensity; a difference and threshold processing part 208 for performing differential processing and threshold processing on the basis of the image when lighting the object 11 and the background 12 at a low lighting intensity or extinguishing the lighting part 201, the image when lighting the object 11 and the background 12 at the optimum lighting intensity, and the optimum threshold; and an object extraction part 209 for extracting the object 11.
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