sergiotarxz/libvips
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1520 Commits

Author SHA1 Message Date
John Cupitt
d46a57cf6b update notes 2016-04-11 13:27:04 +01:00
John Cupitt
269cbb8641 better mask sizing for lanczos 2016-04-11 13:19:00 +01:00
John Cupitt
511a0a7da5 better rounding in reducev orc path 2016-04-10 17:52:51 +01:00
John Cupitt
bf1c8707c7 better draw docs 
add a caching discussion to the start of draw

see https://github.com/jcupitt/libvips/issues/411
 2016-04-06 10:26:53 +01:00
John Cupitt
8aa4566c87 update notes 2016-04-02 20:24:54 +01:00
John Cupitt
bc320f1090 much better int mask creation 
removes some banding from the orc path for reducev
 2016-04-02 18:46:10 +01:00
John Cupitt
5f24468dba tiny code cleanup, note a bug 2016-04-02 11:25:27 +01:00
John Cupitt
95a74cbf28 tiny help polishing 2016-03-25 16:35:28 +00:00
John Cupitt
ddd7ab7459 doc fixups 2016-03-25 10:56:59 +00:00
John Cupitt
1a25c7a083 better rounding in vipsthumbnail 2016-03-25 10:42:21 +00:00
John Cupitt
2996947b0d start fixing up test_thumbnail 
since --interpolator no longer does anything
 2016-03-25 06:11:01 +00:00
John Cupitt
213f9e23b4 count colour pixels 
more overcomputation testing
 2016-03-24 17:41:05 +00:00
John Cupitt
3c98ba78a0 small experiment 2016-03-22 14:19:32 +00:00
John Cupitt
e8b5cb6c23 add VIPS_COUNT_PIXELS, overcomputation tracking 
added VIPS_COUNT_PIXELS(), use like this:

	static int vips_shrinkh_gen( VipsRegion *or, ... )
	{
        	VIPS_COUNT_PIXELS( or, "vips_shrinkh_gen" );
	}

and on image close, if more than 100% of the pixels have been
calculated, you get a warning

only if you enable debugging, since this hurts perf slightly
 2016-03-22 12:26:45 +00:00
John Cupitt
4f8aca3a93 sync 2016-03-21 16:40:55 +00:00
John Cupitt
385f8a167f notes 2016-03-21 11:36:15 +00:00
John Cupitt
05156edd15 add orc path for reducev 
works, but still not quite right, see some banding
 2016-03-18 17:41:51 +00:00
John Cupitt
c20eb9dca0 remove old unrolled case for reduce 
not used any more
 2016-03-15 17:34:31 +00:00
John Cupitt
ff88087a28 try making the reduce mask larger with residual 2016-03-15 14:59:59 +00:00
John Cupitt
45c3fea6ac more resize tuning 2016-03-15 09:49:30 +00:00
John Cupitt
773b474116 Merge branch 'master' of github.com:jcupitt/libvips 2016-03-14 13:35:47 +00:00
John Cupitt
82cecf3d9f bilinear interp. supports complex types 
in line with cubic etc.
 2016-03-14 10:06:45 +00:00
John Cupitt
fba2ac2f85 fix sizing issues with new reduce code 
a couple of bugs and some changed conventions
 2016-03-13 17:44:24 +00:00
John Cupitt
f12fef4aa9 fix compile 2016-03-13 11:35:35 +00:00
John Cupitt
dc7902b12f Merge branch 'master' into add-lanczos3 2016-03-13 11:23:03 +00:00
John Cupitt
70db9aa77b better rounding in resize 2016-03-12 13:14:34 +00:00
John Cupitt
493482c8a7 hey ho, line cache goes back too 2016-03-11 14:56:06 +00:00
John Cupitt
a832a0c254 notes 2016-03-11 14:42:12 +00:00
John Cupitt
4f41617d89 TODO notes 2016-03-11 13:47:19 +00:00
John Cupitt
2ca7b29214 better gauss mat generation 2016-03-10 22:01:55 +00:00
John Cupitt
4974a1ed9c better rounding for vips_resize() 
we were getting off by one size errors
 2016-03-10 19:53:05 +00:00
John Cupitt
9209fb25c5 update notes 2016-03-10 17:40:19 +00:00
John Cupitt
d351e07a6b finish up 2016-03-10 17:33:34 +00:00
John Cupitt
e9728e389b first commit 2016-03-09 12:56:30 +00:00
John Cupitt
2ea5c5f7e5 make python bandrank() work like bandjoin() 
we had a custom wrapper for bandjoin(), but bandrank(), a function with
an almost identical interface, did not ... this was confusing

bandrank() now has a custom wrapper too ... this breaks API
unfortunately, but hopefully very few people were using this thing and
it's better to make this change as soon as possible
 2016-03-01 12:12:51 +00:00
John Cupitt
25c3c49d1c better handling of cast+shift for non-int formats 
before, im.cast(uchar, shift = true) where im was float and tagged as
rgb16 would not shift the image, since it's unclear how much to shift a float
type by

now we do two casts: first, we guess the numeric range from the
interpretation, so rgb16 would be ushort, so we cast float->ushort;
second, we cast to the target type and do the shift on the way

see https://github.com/jcupitt/libvips/issues/397

thanks apacheark
 2016-03-01 11:31:54 +00:00
John Cupitt
b197773095 oop, overflow in sharpen 
plus another tweak of the defaults
 2016-02-28 11:24:35 +00:00
John Cupitt
35650c2244 reduce the number of copy() ops 
reduce the number of copy() ops issued during colour conversion
 2016-02-26 14:05:35 +00:00
John Cupitt
c95bbe43b5 oops in sharpen 2016-02-26 12:26:12 +00:00
John Cupitt
d33306836f better rgb16 -> scrgb handling 
helps new sharpen tests
 2016-02-26 09:08:42 +00:00
John Cupitt
04cc13e321 notes 2016-02-25 11:47:53 +00:00
John Cupitt
c1f1a7c1b3 improve sharpen for screen work 
it was a bit granular (since it was designed for offset work), make sharpen
easier to adjust for smaller effects

- new 'sigma' parameter
- greater parameter range
- more self-tests
 2016-02-25 11:16:24 +00:00
John Cupitt
789e154cd7 phew, done 2016-02-13 14:04:29 +00:00
John Cupitt
fdf0c349ae almost there 
seeing transparency tags when we shouldn't, strange
 2016-02-13 11:51:50 +00:00
John Cupitt
c2be771342 fix load from buffer, update APIs 2016-02-12 20:04:46 +00:00
John Cupitt
0dbd64a122 fix gifload memleak 2016-02-12 17:53:15 +00:00
John Cupitt
b10f332404 very close now 
just a leak to nail down and some small stuff
 2016-02-12 17:30:56 +00:00
John Cupitt
9262d672b7 almost done 
a valgrind failure still
 2016-02-12 10:53:04 +00:00
John Cupitt
4a63e961ea much faster is_a_svg 2016-02-09 14:42:27 +00:00
John Cupitt
56e45545d3 fix load from buffer 2016-02-09 11:58:43 +00:00