Device for recognizing film web processing errors, has detection device that detects processing error based on film web error if film web and processing errors are determined for film web region

摘要

The device has a comparing device for comparing an accommodating image with a reference image stored in a memory. An error recognition device (2) determines a film web error of a film web region before processing a film web (1). Another recognition device (3) determines a processing error of a processed film web region. A detection device (4) detects the processing error based on the film web error if the film web and processing errors are determined for the film web region. An illumination device illuminates the film web. A polarization filter polarizes light. An independent claim is also included for a method for recognizing film web processing errors.