-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathCHANGELOG
108 lines (88 loc) · 3.14 KB
/
CHANGELOG
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
version 4
---------
- rewritten in Rust
- multi-threaded floyd-steinberg dithering gives 2x-3x remapping speed boost
- better handling of remapping on top of backgrounds (for GIFs, gif.ski)
- support for more than 256-colors (compile-time option)
- WASM compatibility
- the C API enables dithering by default
Newer v3/v4 versions of the library are on crates.io: https://crates.io/crates/imagequant
version 2.18
------------
- improved handling of images with very few pixels with very diverse colors
- added more perceptually-weighed color selection
- dropped problematic omp_set_nested()
- fixed a rare memory leak
version 2.17
------------
- quality improvement
- ARM64 build fix
version 2.16
------------
- fixed LCMS2 error handling
version 2.15
------------
- speed and quality improvements
version 2.14
------------
- improved Rust API
- quality improvements for remapping overlays over a background
version 2.13
------------
- support OpenMP in clang
- dropped old Internet Explorer workarounds
- speed and quality improvements
version 2.12
------------
- new liq_histogram_add_fixed_color()
- faster for large/complex images
- workarounds for Microsoft's outdated C compiler
version 2.11
------------
- new liq_image_set_background() for high-quality remapping of GIF frames
- new liq_image_set_importance_map() for controlling which parts of the image get more palette colors
- improved OpenMP support
version 2.10
-----------
- supports building with Rust/Cargo
version 2.9
-----------
- new liq_histogram_add_colors()
version 2.8
-----------
- standalone version
- added Java interface (JNI)
- new API for remapping multiple images to a single shared palette
version 2.7
-----------
- improved dithering of saturated and semitransparent colors
- libimagequant reports detailed progress and supports aborting of operations via callbacks
- fixed order of log output when using openmp
version 2.5
-----------
- replaced color search algorithm with vantage point tree, which is much faster and more reliable
- deprecated IE6 workaround
- warn when compiled without color profile support
- improved support for predefined colors in libimagequant
version 2.4
-----------
- fixed remapping of bright colors when dithering
- added libimagequant API to add fixed preset colors to the palette
version 2.3
-----------
- added ./configure script for better support of Intel C compiler and dependencies [thanks to pdknsk]
- tweaked quality metric to better estimate quality of images with large solid backgrounds [thanks to Rolf Timmermans]
- avoid applying quality setting to images that use palette already
version 2.2
-----------
- OpenMP acceleration
- improved support for Intel C Compiler, speedup in 32-bit GCC, and some workarounds for Visual Studio's incomplete C support
version 2.1
-----------
- option to generate posterized output (for use with 16-bit textures)
version 2.0
-----------
- refactored codebase into pngquant and standalone libimagequant
- reduced memory usage by further 30% (and more for very large images)
- less precise remapping improving speed by 25% in higher speed settings
- fixed regression in dithering of alpha channel