evanoberholster
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571ae3865a
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Performance improvement (#56)
* Performance improvement
* Added support fpr DCT2DFast256
* Update hashcompute.go
Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>
Co-authored-by: Evan Oberholster <eroberholster@gmail.com>
Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>
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2022-09-08 15:20:33 +09:00 |
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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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0876a2adc2
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dct: Process dct algorithm in multiple goroutine (#26)
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2019-03-18 21:09:40 +09:00 |
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Dong-hee Na
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d41c941ded
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transforms: Fix the logic which getting a size of image
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2018-08-19 16:35:17 +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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