| 摘要 |
PROBLEM TO BE SOLVED: To detect an defect in an object to be inspected in a short time. SOLUTION: At the time of coming to the prescribed position of a line sensor camera 3, a sheet 6 is converted to picture data by a picture input part 22. When a filter part 23 filters this picture data to emphasize the defect, a defect data counting part 25 counts emphasized defect data positioned in a prescribed area set to be the inspecting window Wi of an inspecting area deciding processing part 27 when it is positioned. Then when each counted value is not less than a threshold value, a defect judging processing part 28 recognizes it as a defect to affect poststages and gives information on the defect with the name of an inspecting area to outside. |
