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Input: Photograph after rectification
Output: Result after processing (done manually for this example)
Focus on either the elimination of image detail (but don't blur the edges) or on shadow removal. You may use any appropriate algorithm you find or invent, such as median filter or bilateral filter for detail elimination or high-pass filtering of the brightness to remove soft shadows. Describe the algorithm and give its origin in the documentation. If you aim at four points for this assignment, try to come up with a complete solution for both detail elimination and shadow removal. To facilitate testing and/or adjustment, you may want to display intermediate results of your algorithm.
In the lab I'll hand out image examples from officials at Bremen and Düsseldorf. If you come up with a robust solution, they are going to give it a try.