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A comment on Butteraugli – a tool for measuring differences between images.

Re:Butteraugli – a tool for measuring differences between im... by electic on Monday May 09, 2016 @11:17AM (#11660437)
How is this better than phashes? I am new to this, would love for someone with expertise to explain what the best way to hash images are.
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Re:Butteraugli – a tool for measuring differences between im... by ratsbane on Monday May 09, 2016 @12:32PM (#11661071)
phashes compute a hash on one image which you can then compare with the hashes for other images; butteraugli computes the difference between two images. If you're trying to find duplicates among a set of images, phashes will work in O(n log n) time and this will run in O(n^2) time, but with more accurate results.
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