Pascal Massimino dcbb1ca54a add WebPBlendAlpha() function to blend colors against background ...

new option: -blend_alpha 0xrrggbb
also: don't force picture.use_argb value for lossless. Instead,
delay the YUVA<->ARGB conversion till WebPEncode() is called.
This make the blending more accurate when source is ARGB
and lossy compression is used (YUVA).
This has an effect on cropping/rescaling. E.g. for PNG, these
are now done in ARGB colorspace instead of YUV when lossy compression
is used.

Change-Id: I18571f1b1179881737a8dbd23ad0aa8cddae3c6b
(cherry picked from commit e7d9548c9bc94a7c8f2ce70ec81464abb4abf9d6)

2013-06-11 15:00:41 -07:00

..

cwebp.c

add WebPBlendAlpha() function to blend colors against background

2013-06-11 15:00:41 -07:00

dwebp.c

dwebp: warn when decoding animated webp's

2013-03-20 13:59:38 -07:00

example_util.c

examples: don't use C99 %zu

2013-03-20 16:59:35 -07:00

example_util.h

ExUtilWriteFile() to write memory segment to file

2012-11-08 11:20:01 -08:00

gif2webp.c

gif2webp: Bgcolor fix for a special case

2013-03-25 16:30:27 -07:00

jpegdec.c

examples: don't use C99 %zu

2013-03-20 16:59:35 -07:00

jpegdec.h

cwebp/jpegdec: add JPEG metadata extraction

2012-12-20 18:35:38 -08:00

Makefile.am

avoid installing example_util.h

2013-03-13 15:48:34 -07:00

metadata.c

add examples/metadata.c

2012-12-11 18:10:09 -08:00

metadata.h

add examples/metadata.c

2012-12-11 18:10:09 -08:00

pngdec.c

add WebPBlendAlpha() function to blend colors against background

2013-06-11 15:00:41 -07:00

pngdec.h

cwebp: add PNG metadata extraction

2012-12-20 18:32:09 -08:00

stopwatch.h

fix compile under MINGW

2012-01-12 04:53:30 -08:00

test_ref.ppm

lot of cosmetics

2010-11-17 20:09:47 -08:00

test.webp

remove INAM, ICOP, ... chunks from the test webp file.

2012-07-19 17:34:04 -07:00

tiffdec.c

add WebPBlendAlpha() function to blend colors against background

2013-06-11 15:00:41 -07:00

tiffdec.h

cwebp/tiffdec: add TIFF metadata extraction

2012-12-19 18:26:05 -08:00

vwebp.c

vwebp/animation: fix background dispose

2013-03-25 13:39:27 -07:00

webpmux.c

examples: don't use C99 %zu

2013-03-20 16:59:35 -07:00

wicdec.c

add WebPBlendAlpha() function to blend colors against background

2013-06-11 15:00:41 -07:00

wicdec.h

wicdec: add ICC profile extraction

2013-02-02 10:40:49 -08:00