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Film pattern`s faults e.g. scratches, detecting method, involves comparing grey values that are adjacent to both sides of linear formed structures with grey values of structures and providing scratch fault during acquisition of grey value
Film pattern`s faults e.g. scratches, detecting method, involves comparing grey values that are adjacent to both sides of linear formed structures with grey values of structures and providing scratch fault during acquisition of grey value
The method involves producing a pixel shifted picture to determine scratches in the picture and removing the picture from an original picture. Grey values that are adjacent to both sides of linear formed structures are compared with grey values of the structures. A scratch fault is provided during acquisition of grey value transfer concerning both sides of the structure for establishing a certain quantity of pixel per length. An independent claim is also included for a device for detecting faults in a film pattern.
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