0ff30f972d
revise spngload
2020-06-09 19:56:23 +02:00
ce63fc1145
use libspng for load, libpng for save
2020-06-09 14:38:04 +01:00
17a9bf393f
Merge branch 'master' of https://github.com/libvips/libvips
2020-06-09 11:25:05 +02:00
035e0bc756
Added read and write functionality for 2 and 4 bit greyscale TIF images
2020-06-09 11:23:28 +02:00
ac96bb80b5
try revising spng FMT handling again
2020-06-09 02:38:38 +01:00
f113e64515
update for latest spng 1/2/4 bit handling
2020-06-09 02:27:46 +01:00
70a1dc0926
Revert "improve transparency support"
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This reverts commit 20c9a7f7cc
2020-06-09 02:04:55 +01:00
ad73034a30
Merge branch 'master' into libspng-experiment
2020-06-09 02:03:40 +01:00
dbae22ab58
revise unpremultiply
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We were clipping alpha very aggressively. With over- and under-shoot
ringing on edges, this could introduce extra fringes.
see https://github.com/libvips/libvips/pull/1675
2020-06-08 18:47:28 +01:00
20c9a7f7cc
improve transparency support
2020-06-07 17:27:24 +01:00
6705ff85b5
use INTERLACE_NONE
2020-06-07 15:29:48 +01:00
fc872421aa
add exif/icc/text text chunk read
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using new libspng 0.6 features
2020-06-07 15:17:37 +01:00
ef408d630b
start adding ICC and XMP support
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not quite working though ... seems to need a fix in libspng still
2020-06-07 14:00:10 +01:00
a44814018d
Merge branch 'master' into libspng-experiment
2020-06-07 11:56:16 +01:00
981d5c4b16
revise autorot system
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- deprecate vips_autorot_get_angle() since orientation is no longer a
simple rotate
- add vips_image_get_orientation() and vips_image_get_orientation_swap()
- revise tiff and jpeg loader autorotate to just call vips_autorot(),
but only if necessary
- revise thumbnail autorotate too
2020-06-06 17:25:46 +01:00
30386db775
Merge pull request #1650 from wix-playground/master
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Handle mirrored orientations in autorot
2020-06-06 14:46:15 +01:00
d7a735400a
reducev: Fix undefined-behaviour within the vector path
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Found by UBSan.
2020-06-06 14:50:32 +02:00
ac30bad695
Remove round-to-nearest behaviour
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It seems that it generates the same image, with or without this change.
Tested with https://github.com/kleisauke/vips-issue-703 .
2020-06-06 14:29:57 +02:00
c0ed106079
Formatting and whitespace changes
2020-06-06 14:25:03 +02:00
369b098096
Prefer an immediate calculation where possible
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In line with reducev.
2020-06-06 14:21:15 +02:00
dfdf899c92
Ensure reducev is THINSTRIP
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In line with reduceh.
2020-06-06 14:16:24 +02:00
b6e4e9e74b
Speed up the mask construction for uchar/ushort images
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By not calling vips_vector_to_fixed_point repeatedly.
2020-06-06 14:12:37 +02:00
ac358ff4b8
Fix the pixel shift within reduce ( #703 )
2020-06-06 14:01:34 +02:00
54c40249f8
Merge pull request #1673 from libvips/ome-tiff-pyramid
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Support for subifd image pyramids
2020-06-05 13:35:21 +01:00
d5eecac88c
add note about plane separate write
2020-06-05 12:14:40 +01:00
c82be3d30e
read tiff metadata more carefully
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we were not always fetching the root metadata
2020-06-04 05:07:34 +01:00
6e1fd6136d
safer directory set in tiff load
2020-06-03 16:41:29 +01:00
0f57f3692b
stop a compiler warning
2020-06-03 13:11:18 +01:00
6d5a371147
add some tests for subifd pyramids
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fix a problem with jpg-compressed tiffs too
2020-06-02 18:08:34 +01:00
d74fe71764
better thumbnail behaviour for subifd pyramids
2020-06-02 14:23:14 +01:00
cff84f4606
add subifd pyr support to thumbnail
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thumbnail can spot subifd pyramids and load lower levels if necessary
2020-06-02 12:53:36 +01:00
460e1d0bf5
set n-subifds for tiff files
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says how many subifds in the first page
2020-06-01 17:22:10 +01:00
d16f1e67dd
fix tile clipping in toilet roll images
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we were not clipping unaligned tiled correctly
2020-06-01 13:22:51 +01:00
39af6c21c8
update notes
2020-06-01 00:55:19 +01:00
0bdd2290a0
fix tiff directory mixup
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we were not always selecting the correct read directory
2020-06-01 00:39:15 +01:00
f0d4b36d7d
better tiled tiff detection
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for tiffs with mixed strip and tile images
2020-05-29 18:30:49 +01:00
dc29f8dde6
add subifd select to tiff load
2020-05-28 12:40:31 +01:00
9e4b78215e
fix po
2020-05-27 16:30:04 +01:00
aaebb3b346
fix thumbnail of mono image
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we were using RGB as the shrink space
2020-05-27 15:24:27 +01:00
474bfe3782
pytest and valgrind pass
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remove some dbg code
2020-05-24 17:04:55 +01:00
a2d196b736
add subifd support to the TIFF writer
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A new subifd switch enables the writing of pyramids layers into subifds
(rather than the default successive pages). This switch is enabled
automatically for multi-page pyramids.
seems to work in quick tests
2020-05-24 15:21:41 +01:00
6a8f128831
Merge branch 'master' into ome-tiff-pyramid
2020-05-22 16:12:00 +01:00
ba0dea001d
sort out premultiply rules for upsizing
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vips_resize() uses vips_affine() for upsizing and vips_reduce() for
downsizing. Affine automaticaly does a vips_premultiply() for images
with an alpha channel, but reduce does not. This meant that we could
sometimes premultiply twice.
This patch adds a "premultiplied" flag for affine which turns automatic
premultiuplication off, vips_resize() uses this to block affine's auto
premul feature, and the resize docs are clarified to stress that the
operation does not do premultiplication for you.
See https://github.com/libvips/libvips/issues/1629
2020-05-19 14:31:34 +01:00
44db1742fd
tiny doc polish
2020-05-19 14:31:22 +01:00
b4a9636e51
Merge pull request #1657 from lovell/improve-avif-detection
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Improve compile-time libheif and runtime AVIF detection
2020-05-18 22:38:11 +01:00
00dcfa40f1
Improve compile-time libheif and runtime AVIF detection
2020-05-18 19:43:43 +01:00
951540f4fe
revise text docs
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To clarify the meaning of VipsAlign in this context.
See https://github.com/libvips/libvips/issues/1654#issuecomment-629671463
2020-05-16 17:57:31 +01:00
63649629e0
fix doc error
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Hopefully clearer, see https://github.com/libvips/libvips/issues/1654
2020-05-16 12:37:20 +01:00
9cdbf3ee07
don't add fontfiles repeatedly in text
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It seems fontconfig will let you add a file repeatedly. This patch adds a
table which is used to block repeated additions and prevents memory growth
and slowdown.
see https://github.com/libvips/libvips/issues/1655
2020-05-16 12:28:12 +01:00
84b9d1f638
seems to make an OME pyramid correctly
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```
$ vips tiffsave ../k2.jpg x.tif --tile --pyramid --subifd && tiffinfo x.tif
TIFF Directory at offset 0x900008 (9437192)
Image Width: 1450 Image Length: 2048
Tile Width: 128 Tile Length: 128
Resolution: 72.009, 72.009 pixels/inch
Bits/Sample: 8
Sample Format: unsigned integer
Compression Scheme: None
Photometric Interpretation: RGB color
Orientation: row 0 top, col 0 lhs
Samples/Pixel: 3
Planar Configuration: single image plane
SubIFD Offsets: 11797898 12388230 12585130 12634526 0
```
2020-05-15 17:16:04 +01:00
Randy
John Cupitt
Florian Heinrich
Kleis Auke Wolthuizen
Lovell Fuller