Introduction to Perceptual Hashes: Measuring Similarity
Apiumhub
JULY 7, 2022
Thankfully, a BK-tree -a tree specifically designed for metric spaces like Hamming distance- can be used here instead of having to search against every image in the database, greatly reducing the space needed for evaluation. pHash gives a metric about the similarity between two sources, which prevents duplication in the main dataset.
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