evanoberholster
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45da7a6fef
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Refactored Perceptionhash for performance (#54)
* refactored Perceptionhash for performance
* update AUTHORS.md
* replaced PerceptionHash algorithm
* Update hashcompute_test.go
Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>
* Update hashcompute_test.go
Co-authored-by: Evan Oberholster <eroberholster@gmail.com>
Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>
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2022-05-26 15:56:47 +09:00 |
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Dong-hee Na
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14aa1e136f
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dct: Improve DCT1D to O(nlogn) algorithm (#29)
* hashcompute_test: Add benchmark
* dct: Improve DCT1D to O(nlogn) algorithm
AS-IS:
BenchmarkPerceptionHash-8 500 2893930 ns/op 456698 B/op 4455 allocs/op
TO-BE:
BenchmarkPerceptionHash-8 2000 890306 ns/op 456382 B/op 4455 allocs/op
reference: DCT type II, unscaled. Algorithm by Byeong Gi Lee, 1984.
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2019-03-19 13:52:44 +09:00 |
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Dong-hee Na
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3e058be50d
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hashcompute: Update Extend API (#28)
* hashcompute: Update Extend API
- AverageHashExtend -> ExtAverageHash
- PerceptionHashExtend -> ExtPerceptionHash
- DiffrenceHashExtend -> ExtDiffrenceHash
* imagehash: Update load api
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2019-03-18 23:53:09 +09:00 |
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Dong-hee Na
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161b6f5676
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hashcompute: Redesign XXXHashExtend API interface (#27)
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2019-03-18 21:40:16 +09:00 |
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Dong-hee Na
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47321c08d3
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imagehash: Create a new API Bits() (#25)
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2019-03-17 15:42:07 +09:00 |
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Dong-hee Na
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20cafe6017
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hashcompute: Fix 64bits unaligned size case (#23)
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2019-03-16 23:15:32 +09:00 |
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Dong-hee Na
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58a4aa88ab
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hashcompute: Fix bit set index (#22)
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2019-03-16 17:22:57 +09:00 |
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Dong-hee Na
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5f56e8609c
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DifferenceHashExtend: Implement DifferenceHashExtend (#21)
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2019-03-16 00:47:57 +09:00 |
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Dong-hee Na
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b535580cae
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AverageHashExtend: Implement AverageHashExtend and fix bugs (#20)
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2019-03-16 00:26:38 +09:00 |
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Alex
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c41a59a872
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add PerceptionHashExtend function (#18)
goimagehash: Implement PerceptionHashExtend
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2019-02-08 18:02:25 +09:00 |
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Dong-hee Na
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2b9c664be8
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Update docs.
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2017-07-31 23:29:35 +09:00 |
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Dong-hee Na
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7aba8954cd
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[goimagehash] First implement.
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2017-07-31 22:47:14 +09:00 |
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