4 Commits

Author	SHA1	Message	Date
Dong-hee Na	14aa1e136f	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.	2019-03-19 13:52:44 +09:00
Dong-hee Na	47321c08d3	imagehash: Create a new API Bits() (#25)	2019-03-17 15:42:07 +09:00
Dong-hee Na	84eb1859d0	imagehash: Add new serialization API dump/load. (#24) ... Create a new APIs for serializing purpose which can use standard io.Reader/io.Writer APIs. ToString() API will be remain for debugging purpose and ExtImageHashFromString, ImageHashFromString will be removed after next version. - New APIs are added: LoadExtImageHash, LoadImageHash, xxxHash.Dump - These APIs are deprecated: ExtImageHashFromString, ImageHashFromString	2019-03-17 11:34:56 +09:00
Dong-hee Na	7aba8954cd	[goimagehash] First implement.	2017-07-31 22:47:14 +09:00