Suppose you would like to build a hash table for images, where the key for each image
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Suppose you would like to build a hash table for images, where the key for each image is a “thumbnail” image of 75×75 pixels, with each pixel being one of 256 possible colors. Describe a hash function for a set of such images. Your hash function should be fast to compute and it should strive to map different images to different hash values. In particular, reflections and 90◦ rotations of the same image should, in general, map to different hash values.
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Algorithm Design And Applications
ISBN: 9781118335918
1st Edition
Authors: Michael T. Goodrich, Roberto Tamassia
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