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Nigel Tao 415cb3b420 draw: add Scale and Transform fast paths for YCbCr src images. 
benchmark                      old ns/op      new ns/op     delta
BenchmarkScaleLargeDownNN      3239565        1044458       -67.76%
BenchmarkScaleLargeDownAB      12162059       3205972       -73.64%
BenchmarkScaleLargeDownBL      1437923310     358229213     -75.09%
BenchmarkScaleLargeDownCR      2844139449     651228380     -77.10%
BenchmarkScaleSrcYCbCr         12413692       3176042       -74.42%
BenchmarkTformABSrcYCbCr       8363947        2163052       -74.14%
BenchmarkTformCRSrcYCbCr       49944171       11652821      -76.67%

Change-Id: I8cd5ab20aa1f516114599690cab037441a328aec
Reviewed-on: https://go-review.googlesource.com/7796
Reviewed-by: Rob Pike <r@golang.org>
2015-03-20 00:55:56 +00:00
bmp image: add import comments. 2014-12-09 22:43:18 +00:00
cmd/webp-manual-test image: add import comments. 2014-12-09 22:43:18 +00:00
draw draw: add Scale and Transform fast paths for YCbCr src images. 2015-03-20 00:55:56 +00:00
math math/f32, math/f64: add a comment that "Aff" stands for affine 2015-03-06 02:15:01 +00:00
riff image: add import comments. 2014-12-09 22:43:18 +00:00
testdata draw: implement Kernel.Transform. 2015-03-17 23:09:51 +00:00
tiff image: add import comments. 2014-12-09 22:43:18 +00:00
vp8 image: add import comments. 2014-12-09 22:43:18 +00:00
vp8l image: add import comments. 2014-12-09 22:43:18 +00:00
webp image: add import comments. 2014-12-09 22:43:18 +00:00
.gitattributes image: copying .gitattributes to all subrepositories 2014-12-23 11:05:35 +00:00
.gitignore convert .hgignore to .gitignore. 2014-12-08 10:42:30 +11:00
AUTHORS go.empty: prototype for new subrepository 2012-01-25 14:45:13 -05:00
codereview.cfg image: add codereview.cfg 2015-03-18 17:04:05 +00:00
CONTRIBUTING.md doc: add CONTRIBUTING.md 2015-02-20 05:00:47 +00:00
CONTRIBUTORS go.empty: prototype for new subrepository 2012-01-25 14:45:13 -05:00
LICENSE LICENSE: add 2012-03-17 15:20:31 +11:00
PATENTS go.image: add PATENTS file to the subrepo. 2012-04-16 11:25:02 +10:00
README go.image: initial code. 2012-01-31 11:32:50 +11:00

README 

This repository holds supplementary Go image libraries.

To submit changes to this repository, see http://golang.org/doc/contribute.html.