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308 Commits

Author SHA1 Message Date
Lovell Fuller
9e39a7fa95 Correct shrink calc, regression introduced in e398b47 #831 2017-05-30 17:16:41 +01:00
Nicolas Coden
99810c0311 Add support for any rotation angle (#791) 
Allow to provide any positive or negative multiple of 90 to `.rotate(...)`.
Negative angles and angles above 360 are converted to valid 0/90/180/270
rotations (0 rotations are still ignored).

Changes:
- [Node] Add `useExifOrientation` internal variable to know if the Exif
  orientation must be used instead of the provided angle. This allows to save a
  negative angle in the `angle` option, because the `-1` special case is not
  needed.

- [Node] Change check for planed-rotation in extract, to prepare a
  rotation before extraction: check with both `angle` and `useExifOrientation`
  options.
  I think this check contains a bit too much logics on rotation options. Maybe
  we could move this condition to a dedicated function.

- [C++] Separate `CalculateRotationAndFlip` into two generic functions:
  - `CalculateExifRotationAndFlip`: Calculate the angle of rotation and
    need-to-flip for the given Exif orientation.
  - `CalculateAngleRotation`: Calculate the rotation for the given angle.

  One or the other function is used to calculate the rotation, depending on
  wether the Exif orientation tag or the provided angle must be used.

- Add unit tests for `-3690`, `-450`, `-90`, `90`, `450`, `3690` and `-3780`,
  `-540`, `0`, `180`, `540`, `3780` rotations
- Add `320x240` fixture image for tests.

Unrelated changes (squashed):
- Add ncoden to the list of contributors
 2017-05-22 11:08:33 +01:00
Lovell Fuller
0a6d8b37ad Ensure double to int cast introduced in 4d1a169 is static 2017-05-21 19:05:56 +01:00
Lovell Fuller
e398b471e1 Prevent aliasing by using dynamic values for shrink(-on-load) 2017-05-13 18:46:39 +01:00
Lovell Fuller
36078f9903 Switch to the libvips crop strategy implementations 2017-05-06 14:46:28 +01:00
Lovell Fuller
2f534dc01c Base maximum output dimensions on limitation of format 2017-05-04 23:20:37 +01:00
Lovell Fuller
c8e59f08ec Add support for Buffer and Stream-based TIFF output 2017-05-04 16:40:49 +01:00
Lovell Fuller
4d1a1694cd Improve perf/accuracy of nearest neighbour integral upsample 2017-04-30 20:54:48 +01:00
Lovell Fuller
1169afbe90 Avoid (un)premultiplication for overlay image without alpha channel 
Add 'premultiplied' boolean attribute to output info, helps test
 2017-04-26 21:37:43 +01:00
Lovell Fuller
301bfbd271 Expose libvips warnings via NODE_DEBUG env var 2017-04-26 21:37:43 +01:00
YvesBos
4cd3b66761 Add support for squashing TIFF output to 1-bit (#783) 2017-04-26 17:47:29 +01:00
Lovell Fuller
088d36b47b Add support for TIFF float predictor 2017-04-01 10:08:47 +01:00
Kristo Jorgenson
f8e72f443d Expose TIFF compression and predictor options (#738) 2017-03-29 12:12:04 +01:00
Alice Monday
72f69dda30 Add support for the "nearest" kernel for image reductions (#732) 2017-03-14 10:29:23 +00:00
Lovell Fuller
8b5d8a0577 Switch from seq to random access for normalise and 'smart' crop 2017-03-11 19:56:55 +00:00
Lovell Fuller
1aa053ce6f Create blank image (width, height, channels, background) #470 2017-03-11 11:46:01 +00:00
Lovell Fuller
81f5589411 Add use of 'cc' to improve C++ code style linting 2017-02-11 09:59:23 +00:00
Rahul Nanwani
a1b8efe721 Expose WebP alpha quality, lossless and near-lossless output options (#685) 2017-01-19 13:45:32 +00:00
Lovell Fuller
d2455267a8 Allow non-RGB input to embed/extend onto bg with alpha #646 2016-12-11 16:01:21 +00:00
Lovell Fuller
d3c78f825c Ensure premultiply op occurs before box shrink #605 2016-12-04 18:25:44 +00:00
Lovell Fuller
7231d92d1f Autoconvert GIF+SVG input to PNG output if no format specified 2016-11-30 22:46:04 +00:00
Patrick Paskaris
6ccccf8c39 Allow use of extend with greyscale input (#623) 2016-11-14 22:09:43 +00:00
Patrick Paskaris
bc84d1e47a Allow PNG and WebP tile-based output in addition to JPEG (#622) 2016-11-13 20:36:43 +00:00
Lovell Fuller
a7b024d4fa Tile-based output filename may not exist, check g_stat return value 2016-11-06 14:31:32 +00:00
Lovell Fuller
9911863441 Expose libvips centre option, mimics *magick +0.5px convention 2016-11-04 18:17:33 +00:00
Lovell Fuller
8717ecc429 Modularise JS source in 'lib' subdirectory. 
Generate public API documention via jsdoc comments.
 2016-11-02 09:25:20 +00:00
Lovell Fuller
3f5e38bb62 Deprecate output format option functions. 
Access is now via options of existing output format functions.

e.g. use .jpeg({quality: n}) instead of .jpeg().quality(n)
 2016-11-02 09:25:20 +00:00
Lovell Fuller
18b9991fe7 Add experimental 'attention' crop strategy 2016-10-12 11:18:58 +01:00
Lovell Fuller
7ada9dbd0d Changelog update, fix for small leak introduced in 5c5d74a 2016-08-17 20:56:53 +01:00
Matt Hirsch
5c5d74a903 Add joinChannel and toColourspace/toColorspace operations (#513) 2016-08-17 15:42:05 +01:00
cmtt
fc2002fbd0 Add alpha channels, if missing, to overlayWith images (#540) 2016-08-13 17:19:15 +01:00
Lovell Fuller
e6bfa52b0b Add raw pixel data support to boolean and withOverlay ops 
The previously-scattered image opening logic has been refactored to a
single ImageDescriptor struct/Object available to both JS and C++ code

This removed about 150 LOC but more importantly reduces the complexity
of adding/exposing new operations that require an input image.
 2016-07-26 23:07:25 +01:00
Lovell Fuller
032bb7e96b Ensure ICC profiles are removed from PNG output #521 2016-07-21 16:49:27 +01:00
Lovell Fuller
a5bd68ef8c Recalc after WebP shrink-on-load to avoid rounding errors #508 2016-07-21 15:18:14 +01:00
Matt Hirsch
c39a9b8de9 Prevent boolean errors during extract operation (#509) (#511) 2016-07-16 10:56:15 +01:00
Matt Hirsch
15a577863a Ensure boolean, bandbool, extractChannel ops occur before sRGB conversion (#504) 2016-07-13 19:20:50 +01:00
Lovell Fuller
c42fb97419 Refactor pipeline to use common 16-bit detection methods 2016-07-11 23:03:45 +01:00
Lovell Fuller
e10aeb29eb Add missing include introduced by fee3d88 2016-07-11 14:05:26 +01:00
Lovell Fuller
fee3d882c7 Prevent GC of Buffer object vector via accumulate/lambda. 
Removes need for naming Buffers and separate container struct.
 2016-07-11 13:07:32 +01:00
Matt Hirsch
d17e8d3450 Add boolean feature for bitwise image operations (#501) 2016-07-11 09:51:43 +01:00
Matt Hirsch
83d8847f57 Add extractChannel operation to extract a channel from an image (#497) 2016-07-09 16:48:30 +01:00
Matt Hirsch
f672f86b53 Add ability to read and write native vips .v files (#500) 2016-07-09 16:21:16 +01:00
Kleis Auke Wolthuizen
b69627891d Add trim operation to remove "boring" edges (#491 #492) 2016-07-08 22:19:10 +01:00
Matt Hirsch
65b7f7d7d5 Add bandbool feature for channel-wise boolean operations (#496) 2016-07-07 21:03:49 +01:00
Rahul Nanwani
278273b5c3 Add top/left offset support to overlayWith operation (#473) 2016-07-05 10:12:02 +01:00
Lovell Fuller
a5d85b8a54 Changelog plus tidy of code/docs for convolve operation 2016-07-04 22:13:47 +01:00
Matt Hirsch
b70a7d9a3b Add convolve operation for kernel-based convolution (#479) 2016-07-04 20:48:00 +01:00
Lovell Fuller
91e1ed1314 Ensure ICC profiles are licenced for distribution #486 2016-07-04 10:13:16 +01:00
Matt Hirsch
85f20c6e1b Add greyscale option to threshold operation (#480) 2016-07-03 19:32:07 +01:00
Kleis Auke Wolthuizen
2e9cd83ed2 Add support for clipping/cutting out (#435) (#448) 
USAGE: overlayWith('overlayimage.png', { cutout: true } )
 2016-06-25 16:48:01 +01:00