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abonander / img_hash

A Rust library for calculating perceptual hash values of images
Apache License 2.0
310 stars 62 forks source link

Implement fast DCT algorithm built from FFTs #7

Closed abonander closed 9 years ago

abonander commented 9 years ago

Info: http://dsp.stackexchange.com/questions/2807/fast-cosine-transform-via-fft

abonander commented 9 years ago

HashType::UserDCT will allow the user to provide their own faster DCT hash.