Babl-0.1.10
Contents
• Babl
• Features
• Download
• Documentation
• Usage
• Vocabulary
• Shortcut Coverage
• Environment
• Extending
• Directory Overview
• Todo
• Copyright
• Authors
babl is a dynamic, any to any, pixel format translation library.
It allows converting between different methods of storing pixels known
as pixel formats that have with different bitdepths and other data
representations, color models and component permutations.
A vocabulary to formulate new pixel formats from existing primitives is
provided as well as the framework to add new color models and data
types.
Features
• Fast.
• Accurate.
• Stable, small API.
• Self profiling and optimizing.
• ANSI C, works on win32, linux and mac, 32bit and 64bit systems.
• Extendable with new formats, color models, components and
datatypes.
• Reference 64bit floating point conversions for datatypes and color
models.
GEGL through GeglBuffer provides tiled buffers with on disk storage as
well as linear buffers with accessor functions for efficient data
access transparently using babl fishes for translation to the desired
pixel formats.
Download
The latest versioned development version of babl can be found in ftp://
ftp.gtk.org/pub/babl/.
Babl uses git. The main repository is hosted by GNOME. It can be
browsed online and cloned with:
git clone git://git.gnome.org/babl
The following is a list of the major changes that have gone into each
babl release. If there are significant improvements to babl when a GEGL
release is done a babl release is most often put out just prior to the
GEGL release.
2012-03-30 babl-0.1.8
LUT based speedups for gamma correction / uncorrection.
2012-03-30 babl-0.1.8
Added support for indexed/pallette based formats, constified API.
2011-11-18 babl-0.1.6
Build improvements, remove blatantly wrong conversions from
extensions, made it possible to distinguish format_n formats from
others, improvements to vala/gobject introspection support.
2011-01-20 babl-0.1.4
Improved cross platform build ability, added code to handle
n-component formats, remove extraenous runtime profiling that
impacted performance.
2010-01-15 babl-0.1.2
Made babl mostly threadsafe (sufficient for GIMP/GEGLs needs).
Streamlined core functionality, reducing number of function calls
and removing overeager instrumentation.
2009-05-20 babl-0.1.0
Support for RGBA representation in the frequency domain,
un-pre-multiply close-to-zero alpha values to complete black
instead of slightly brighter than black, add a BABL_ALPHA_THRESHOLD
constant to the API, do a complete overhaul of the babl API and do
some changes to increase portability of the library.
2008-06-12 babl-0.0.22
Speed improvements due to: coalesced hashing, early bail out upon
creation of duplicate formats, caching of non existing paths. Large
amounts of the core has also been reviewed and refactored. Improved
conversion coverage in the matrix.
2008-02-27 babl-0.0.20
Builds on OSX Check <0.0 and >1.0 values conversions for accuracy
as well.
For more news see git log.
Documentation
When using BablFishes to do your conversions, you request a fish to
convert between two formats, and an optimal fish to babls capability is
provided that you can use to do your conversions. Babl also provides
the capability to describe new formats based on a vocabulary of user
registered color models and data types.
Babl provides a base vocabulary in BablBase and some extensions that
are thought to be generally useful.
When performing further extensions to the vocabulary of babl, the
internal consistency is governed by reference conversions that operate
on double (64 bit floating point values). The only color model created
during BablCore bootstrap is RGBA (linear light RGB, 0.0 - 1.0, with a
linear 0.0 - 1.0 opacity channel) backed by the double datatype.
Defined similarily to scRGB using 64bit floating point.
If babls conversion isn't fast enough, you can provide your own
conversion shortcut between two formats. The registered shortcut might
also be used by babl as an intermediate conversion when constructing
BablFishes for other conversions.
Babl extensions are shared objects. If you have already developed some
fast conversion functions, wrapping them as babl extensions should not
take much time and will speed up babl for other users as well.
Usage
babl_process (babl_fish (source_format, destination_format),
source_buffer, destination_buffer,
pixel_count);
The processing operation that babl performs is copying including
conversions if needed between linear buffers containing the same count
of pixels, with different pixel formats.
int width = 123, height = 581, pixel_count = width * height;
const Babl *srgb = babl_format ("R'G'B' u8");
const Babl *lab = babl_format ("CIE Lab float");
Babl *rgb_to_lab_fish = babl_fish (srgb, lab);
float *lab_buffer;
unsigned char *srgb_buffer;
babl_init ();
srgb_buffer = malloc (pixel_count * babl_format_get_bytes_per_pixel (srgb));
lab_buffer = malloc (pixel_count * 3 * sizeof (float));
...... load data into srgb_buffer .......
babl_process (rgb_to_lab_fish, srgb_buffer, lab_buffer, pixel_count);
...... do operation in lab space ........
babl_process (babl_fish(lab, srgb),
lab_buffer, srgb_buffer, pixel_count);
/* the data has now been transformed back to srgb data */
If the existing pixel formats are not sufficient for your conversion
needs, new ones can be created on the fly. The constructor will provide
the prior created one if duplicates are registered.
const Babl *format = babl_format_new (babl_model ("R'G'B'"),
babl_type ("u16"),
babl_component ("B'"),
babl_component ("G'"),
babl_component ("R'"),
NULL);
Vocabulary
+-
Data types
double
bits
64
bytes
8
float
bits
32
bytes
4
u8
bits
8
bytes
1
u8-luma
bits
8
bytes
1
u8-chroma
bits
8
bytes
1
u16
bits
16
bytes
2
u32
bits
32
bytes
4
CIE u8 L
bits
8
bytes
1
CIE u8 ab
bits
8
bytes
1
CIE u16 L
bits
16
bytes
2
CIE u16 ab
bits
16
bytes
2
Color models
RGBA
components
R
G
B
A
RGB
components
R
G
B
RaGaBaA
components
Ra
Ga
Ba
A
R'G'B'
components
R'
G'
B'
R'G'B'A
components
R'
G'
B'
A
R'aG'aB'aA
components
R'a
G'a
B'a
A
Y
components
Y
YA
components
Y
A
YaA
components
Ya
A
Y'
components
Y'
Y'A
components
Y'
A
Y'aA
components
Y'a
A
Y'CbCr
components
Y'
Cb
Cr
Y'CbCrA
components
Y'
Cb
Cr
A
CIE Lab
components
CIE L
CIE a
CIE b
CIE Lab alpha
components
CIE L
CIE a
CIE b
A
CIE LCH(ab)
components
CIE L
CIE C(ab)
CIE H(ab)
CIE LCH(ab) alpha
components
CIE L
CIE C(ab)
CIE H(ab)
A
CMYK
components
cyan
magenta
yellow
key
Pixel formats
RGBA double
bytes/pixel
32
model
RGBA
components
double R
double G
double B
double A
RGB double
bytes/pixel
24
model
RGB
components
double R
double G
double B
RaGaBaA double
bytes/pixel
32
model
RaGaBaA
components
double Ra
double Ga
double Ba
double A
R'G'B' double
bytes/pixel
24
model
R'G'B'
components
double R'
double G'
double B'
R'G'B'A double
bytes/pixel
32
model
R'G'B'A
components
double R'
double G'
double B'
double A
R'aG'aB'aA double
bytes/pixel
32
model
R'aG'aB'aA
components
double R'a
double G'a
double B'a
double A
R'G'B' u8
bytes/pixel
3
model
R'G'B'
components
u8 R'
u8 G'
u8 B'
R'G'B'A u8
bytes/pixel
4
model
R'G'B'A
components
u8 R'
u8 G'
u8 B'
u8 A
RGBA float
bytes/pixel
16
model
RGBA
components
float R
float G
float B
float A
RGB float
bytes/pixel
12
model
RGB
components
float R
float G
float B
Y double
bytes/pixel
8
model
Y
components
double Y
YA double
bytes/pixel
16
model
YA
components
double Y
double A
YaA double
bytes/pixel
16
model
YaA
components
double Ya
double A
Y' double
bytes/pixel
8
model
Y'
components
double Y'
Y'A double
bytes/pixel
16
model
Y'A
components
double Y'
double A
Y'aA double
bytes/pixel
16
model
Y'aA
components
double Y'a
double A
Y'CbCr double
bytes/pixel
24
model
Y'CbCr
components
double Y'
double Cb
double Cr
Y'CbCrA double
bytes/pixel
32
model
Y'CbCrA
components
double Y'
double Cb
double Cr
double A
Y'CbCr u8
bytes/pixel
3
model
Y'CbCr
components
u8-luma Y'
u8-chroma Cb
u8-chroma Cr
R'G'B'A float
bytes/pixel
16
model
R'G'B'A
components
float R'
float G'
float B'
float A
R'G'B'A u16
bytes/pixel
8
model
R'G'B'A
components
u16 R'
u16 G'
u16 B'
u16 A
R'aG'aB'aA float
bytes/pixel
16
model
R'aG'aB'aA
components
float R'a
float G'a
float B'a
float A
R'aG'aB'aA u16
bytes/pixel
8
model
R'aG'aB'aA
components
u16 R'a
u16 G'a
u16 B'a
u16 A
R'aG'aB'aA u8
bytes/pixel
4
model
R'aG'aB'aA
components
u8 R'a
u8 G'a
u8 B'a
u8 A
R'G'B' float
bytes/pixel
12
model
R'G'B'
components
float R'
float G'
float B'
R'G'B' u16
bytes/pixel
6
model
R'G'B'
components
u16 R'
u16 G'
u16 B'
Y'A float
bytes/pixel
8
model
Y'A
components
float Y'
float A
Y'aA float
bytes/pixel
8
model
Y'aA
components
float Y'a
float A
Y' float
bytes/pixel
4
model
Y'
components
float Y'
Y'A u16
bytes/pixel
4
model
Y'A
components
u16 Y'
u16 A
Y'aA u16
bytes/pixel
4
model
Y'aA
components
u16 Y'a
u16 A
Y' u16
bytes/pixel
2
model
Y'
components
u16 Y'
Y'A u8
bytes/pixel
2
model
Y'A
components
u8 Y'
u8 A
Y'aA u8
bytes/pixel
2
model
Y'aA
components
u8 Y'a
u8 A
Y' u8
bytes/pixel
1
model
Y'
components
u8 Y'
Y'CbCr float
bytes/pixel
12
model
Y'CbCr
components
float Y'
float Cb
float Cr
Y'CbCrA float
bytes/pixel
16
model
Y'CbCrA
components
float Y'
float Cb
float Cr
float A
RGBA u16
bytes/pixel
8
model
RGBA
components
u16 R
u16 G
u16 B
u16 A
RGBA u8
bytes/pixel
4
model
RGBA
components
u8 R
u8 G
u8 B
u8 A
RaGaBaA float
bytes/pixel
16
model
RaGaBaA
components
float Ra
float Ga
float Ba
float A
RaGaBaA u16
bytes/pixel
8
model
RaGaBaA
components
u16 Ra
u16 Ga
u16 Ba
u16 A
RaGaBaA u8
bytes/pixel
4
model
RaGaBaA
components
u8 Ra
u8 Ga
u8 Ba
u8 A
RGB u16
bytes/pixel
6
model
RGB
components
u16 R
u16 G
u16 B
RGB u8
bytes/pixel
3
model
RGB
components
u8 R
u8 G
u8 B
YA float
bytes/pixel
8
model
YA
components
float Y
float A
YaA float
bytes/pixel
8
model
YaA
components
float Ya
float A
Y float
bytes/pixel
4
model
Y
components
float Y
YA u16
bytes/pixel
4
model
YA
components
u16 Y
u16 A
YaA u16
bytes/pixel
4
model
YaA
components
u16 Ya
u16 A
Y u16
bytes/pixel
2
model
Y
components
u16 Y
YA u8
bytes/pixel
2
model
YA
components
u8 Y
u8 A
YaA u8
bytes/pixel
2
model
YaA
components
u8 Ya
u8 A
Y u8
bytes/pixel
1
model
Y
components
u8 Y
CIE Lab double
bytes/pixel
24
model
CIE Lab
components
double CIE L
double CIE a
double CIE b
CIE Lab alpha double
bytes/pixel
32
model
CIE Lab alpha
components
double CIE L
double CIE a
double CIE b
double A
CIE LCH(ab) double
bytes/pixel
24
model
CIE LCH(ab)
components
double CIE L
double CIE C(ab)
double CIE H(ab)
CIE LCH(ab) alpha double
bytes/pixel
32
model
CIE LCH(ab) alpha
components
double CIE L
double CIE C(ab)
double CIE H(ab)
double A
CIE Lab float
bytes/pixel
12
model
CIE Lab
components
float CIE L
float CIE a
float CIE b
CIE Lab alpha float
bytes/pixel
16
model
CIE Lab alpha
components
float CIE L
float CIE a
float CIE b
float A
CIE Lab u8
bytes/pixel
3
model
CIE Lab
components
CIE u8 L CIE L
CIE u8 ab CIE a
CIE u8 ab CIE b
CIE Lab u16
bytes/pixel
6
model
CIE Lab
components
CIE u16 L CIE L
CIE u16 ab CIE a
CIE u16 ab CIE b
CIE LCH(ab) float
bytes/pixel
12
model
CIE LCH(ab)
components
float CIE L
float CIE C(ab)
float CIE H(ab)
CIE LCH(ab) alpha float
bytes/pixel
16
model
CIE LCH(ab) alpha
components
float CIE L
float CIE C(ab)
float CIE H(ab)
float A
cairo-ARGB32
bytes/pixel
4
model
R'aG'aB'aA
components
u8 B'a
u8 G'a
u8 R'a
u8 A
cairo-RGB24
bytes/pixel
4
model
R'G'B'
components
u8 B'
u8 G'
u8 R'
u8 PAD
cairo-A8
bytes/pixel
1
model
YA
components
u8 A
CMYK double
bytes/pixel
32
model
CMYK
components
double cyan
double magenta
double yellow
double key
CMYK float
bytes/pixel
16
model
CMYK
components
float cyan
float yellow
float magenta
float key
B'aG'aR'aA u8
bytes/pixel
4
model
R'aG'aB'aA
components
u8 B'a
u8 G'a
u8 R'a
u8 A
Shortcut Coverage
The diagram shown below visualizes the coverage of current shortcut
conversions. Dots indicate a direct conversion is provided for, the
height of the bar indicates the number of conversions steps needed in a
chain of conversions. A DHTML version is also available.
··▂▂·▁·· ··· ▁ ▁ ▂ ▁▁ ▁ ···· · ── 0 RGBA double
── 1 RGB double
── 2 RaGaBaA double
── 3 R'G'B' double
· ▁▁▁▁▂▁▁ ▁▁▁ · ▂ ▁ ▂▂ ▂ ▁▁▁▁ ▁ ── 4 R'G'B'A double
· ▃▃▁▂▁▁ ▁▁▁ ▂ ▃ ▂▂ ▂ ▁▁▁▁ ▁ ── 5 R'aG'aB'aA double
▂ ▂ ··▂▃▃ ▂▃▂ ▁ ▁ ·· ▁▂ ▃ ▂ ▂▂▃▃ ▃ ── 6 R'G'B' u8
▁ ▁▂ ·▁▃▂ ▃▃▂ · ▁ ▁ ▁▁ ▁ ▂▂▃▂ ▃ ── 7 R'G'B'A u8
· ▁▁▁ ·▁▁ ▁▁▁ ▂ · ▁ ·· · ▁▁▁▁ ▁ ── 8 RGBA float
▁ ▂▂▂▂ ▂▂ ▂▂▂ ▃ ▁ ▃· ▁· ▂ ▁ ▂▃▂▂ ▂ ── 9 RGB float
· ▁▁▃▃▁ ▁ ▁▁▁ ▂ ▃ ▃ ▂▂ ▃ ▂ ▁▁▁▁ ▁ ──10 Y double
· ▁▁▃▃▁▂ ▁▁▁ ▂ ▂ ▃ ▂▂ ▂ ▁▁▁▁ ▁ ──11 YA double
──12 YaA double
──13 Y' double
──14 Y'A double
· ▁▁▃▃▁▂▁▁ ▁▁ ▂ ▂ ▃ ▂▂ ▂ ▁▁▁▁ ▁ ──15 Y'aA double
· ▁▁▃▃▁▂▁▁ ▁ ▂ ▃ ▃ ▃▂ ▃ ▂ ▁▁▁▁ ▁ ──16 Y'CbCr double
▁▁▃▃▁▂▁▁ ▁ ▂ ▂ ▃ ▂▂ ▂ ▁▁▁▁ ▁ ──17 Y'CbCrA double
──18 Y'CbCr u8
▁ ·▂···▁▂▂ ▃▂▂ ▁ · ▁▁ ▃ ▂▂▂▂ ▂ ──19 R'G'B'A float
▂ ▁▃▁▁▁▂▃▃ ▃▃▃ ▁ ▁ ▂▂ ▃ ▃▃▃▃ ▃ ──20 R'G'B'A u16
▁▁ ▂ ▃ ▃▃▃▃ ──21 R'aG'aB'aA float
▃ ▂ ▂▃ ▁ ▂ ▃▃ ▃ ──22 R'aG'aB'aA u16
▃ ▂ ▂▃ ▁ · ▂ ▃▃ ▃ ──23 R'aG'aB'aA u8
▃ ▁▃▁▁▁▃▃▃ ▃▃▃ · · ▃▃ ▃ ▃ ▃▃▃▃ ▃ ──24 R'G'B' float
▃ ▂ ▂▃▃▁ ▁ ▁ ▃ ▃▃ ▃ ──25 R'G'B' u16
▁ ▃▁ · ▁ ▁ ·· ▂ ▁ ──26 Y'A float
▂ ▂▂ ▁ · ▂ ▁ ▁ · ──27 Y'aA float
▂ ▂▂ ▁ ▂ ▃▃ · ──28 Y' float
▂ ▂▂ ▁ ▂ ▂ ·▁ ▃ ▂ ──29 Y'A u16
▃ ▃▃ ▂ ▁ ▃ ▁·▂ ▁ ──30 Y'aA u16
▃ ▃▃ ▃ ▂ ▁ ▁▁· ──31 Y' u16
▂ ▂▂▂▂▁▁▃▃ ▂▃▂ ▁ ▂ ▂ ·▁▁ ▃ ▃ ▂▂ ▁·▁▁ ▂▃▂▂ ▂ ──32 Y'A u8
▃ ▂ ▁ ▃ ▁·▂ · ──33 Y'aA u8
▃ ▃▂▃▃▃▃▂▂ ▂▂▂ ▂ ▂ ▃▁ ▁▁· ▃▃ ▂ ▁▁▂· ▂▂▂▂ ▂ ──34 Y' u8
▃ ▂ ▂▂▃▁ ▁ ▁ ▃· ▃▃ ▃ ──35 Y'CbCr float
▂ ▁▃▁▁▁▂▃▃ ▃▃ · ▂ ▁ ▂▂ ▃ ▃▃▃▃ ▃ ──36 Y'CbCrA float
▁ ▂▂▂▂·▁▂▂ ▂▂▂ ▁ ▁ ▂ ▁▁ ▁ ▂▂▂▂ ▂ ──37 RGBA u16
▁ ▂▂▂▂·▁▂▂ ▂▂▂ ▁ ▁ ▂ ▁ · ▃▂▂▂ ▂ ──38 RGBA u8
▁ ▂▂▂▂·▁▂▂ ▂▂▂ ▁ ▁ ▂ ▁ ▂▂▂▂ ▂ ──39 RaGaBaA float
▂ ▃▃▃▃▁▂▃▃ ▃▃▃ ▂ ▂ ▃ ▂ ▂ ▃▃▃▃ ▃ ──40 RaGaBaA u16
▂ ▃▃▃▃▁▂▃▃ ▃▃▃ ▂ ▂ ▃ · ▃▃▃▃ ▃ ──41 RaGaBaA u8
▂ ▃▃▃▃▁·▃▃ ▃▃▃ ▂ ▃ ▁ ▃▂ ▂ ▃▃▃▃ ▃ ──42 RGB u16
▁ ▂▃▃▃▁·▂▃ ▃▃▂ ▂ ▃ ▃▁ ·▁ · ▃▃▃▃ ▃ ──43 RGB u8
▁ ▂▂▂▂·▁▂ ▂▂▂ ▁ ▁ ▂ ▁▁ ·· ▂▂▂▂ ▂ ──44 YA float
▂ ▃▃▃▃▁▂▃▃ ▃▃▃ ▂ ▂ ▃ ▂· ▂ ▃▃▃▃ ▃ ──45 YaA float
▂ ▃▃▃▃▃▂ ▃ ▃▃▃ ▂ ▂ ▃ ▂▂ ▃ ▂· ▃▃▃▃ ▃ ──46 Y float
▂ ▃▃▃▃▁▂▃▃ ▃▃▃ ▂ ▂ ▃ ▂▂ ▂·▁ ▃▃▃▃ ▃ ──47 YA u16
▃ ▂▃ ▃ ▃ ▃▁ ▃ · ──48 YaA u16
▃ ▂▁ ▃ ▃ ▂ ▃▂ ▃▁▁· ──49 Y u16
▁ ▃▃▃▃·▂▃▃ ▃▃▃ ▁ ▁ ▂ ▂▂ ▁·▁▁ ▃▂▃▃ ▂ ──50 YA u8
▃ ▂▃ ▃ ▃ ▁ ▁·▂ ──51 YaA u8
▁ ▂▂▂▃▂▁▂▂ ▂▂▂ ▁ ▃ ▃▂ ▃▃ ▂ ▃▁▁· ▂▂▂▂ ▂ ──52 Y u8
· ▁▁▃▃▁▂▁▁ ▁▁▁ ▂ ▃ ▃ ▂▂ ▃ ▂ ▁▁▁ ▁ ──53 CIE Lab double
· ▁▁▃▃▁▂▁▁ ▁▁▁ ▂ ▂ ▃ ▂▂ ▂ ▁ ▁ ──54 CIE Lab alpha double
· ▁▁▃▃▁▂▁▁ ▁▁▁ ▂ ▃ ▃ ▂▂ ▃ ▂ ▁ ▁ ▁ ──55 CIE LCH(ab) double
· ▁▁▃▃▁▂▁▁ ▁▁▁ ▂ ▂ ▃ ▂▂ ▂ ▁▁ ▁ ──56 CIE LCH(ab) alpha double
──57 CIE Lab float
──58 CIE Lab alpha float
──59 CIE Lab u8
──60 CIE Lab u16
──61 CIE LCH(ab) float
──62 CIE LCH(ab) alpha float
──63 cairo-ARGB32
──64 cairo-RGB24
──65 cairo-A8
· ▁▁▃▃▁▂▁▁ ▁▁▁ ▂ ▃ ▃ ▃▂ ▃ ▂ ▁▁▁▁ ──66 CMYK double
──67 CMYK float
──68 B'aG'aR'aA u8
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
||||||||||11111111112222222222333333333344444444445555555555666666666
012345678901234567890123456789012345678901234567890123456789012345678
total length: 2751
total cost : 504960
Environment
If the environment variable BABL_STATS is set containting a html pixel
format conversion usage matrix will be written to /tmp/babl-stats.html.
This allows figuring out which conversions is taking up time during
processing, and what shortcuts extensions might be created or improved
to make babl do it's job faster.
Through the environment variable BABL_TOLERANCE you can control a speed
/performance trade off that by default is set very low (0.000001)
values in the range 0.01-0.1 can provide reasonable preview performance
by allowing lower numerical accuracy
.
Extending
For samples of how the current internal API specification of data
types, color models, and conversions look in the extensions/ directory.
The tables in this HTML file is directly generated based on the data
registered by BablCore (double and RGBA), BablBase (core datatypes, and
RGB models), extensions (CIE Lab, naive CMYK, various shortcut
conversions).
Directory Overview
babl-dist-root
│
├──babl the babl core
│ └──base reference implementations for RGB and Grayscale Color Models,
│ 8bit 16bit, and 32bit and 64bit floating point.
├──extensions CIE-Lab color model as well as a naive-CMYK color model.
│ also contains a random cribbage of old conversion optimized
│ code from gggl. Finding more exsisting conversions in third
│ part libraries (hermes, lcms?, liboil?) could improve the
│ speed of babl.
├──tests tests used to keep babl sane during development.
└──docs Documentation/webpage for babl (the document you are reading
originated there.
TODO
• Support for conversions between formats that have higher
dimensionality than RGBA. (arbitrary meaningless components)
• Support for datatypes that are not a multiple of 8bit.
• dithering
• dynamic data attached to format, or internal handling of icc
through a registered set of profiles
• Stocastic runtime profiling with running average of the peformance
for conversions, to avoid problems incurred if other cpu intense is
happening when babl tests a conversions.
Copyright
Babl is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
Authors
Øyvind Kolås pippin at gimp.org
Original author.
Sven Neumann sven at gimp.org
Build sanity and optimizations.
Michael Natterer mitch at gimp.org
Build sanity.
Kevin Cozens kcozens at cvs.gnome.org
Build sanity.
Tim Mooney
Portability fixes.
Michael Schumacher schumaml at cvs.gnome.org
win32 support for dynamic extensions.
Portability fixes.
Jan Heller jheller at svn.gnome.org
Optimizations, refactoring and documentation.
Mukund Sivaraman muks at mukund.org
Sparse fixes and sanity.
dmacks at netspace.org
Build sanity
Sam Hocevar
Build sanity.
Zhang Junbo
Frequency domain color model.
Martin Nordholts
Optimizations and API overhaul.
Gary V. Vaughan
Multiplatform build support.
Stanislav Brabec
Portability patch.
Hubert Figuiere
C++ friendliness patch.
Danny Robson
Code cleanups.
Fryderyk Dziarmagowski freetz at gmx.net
Code cleanups.
Daniel Paredes García danipga at gmail.com
Initial work to make babl threadsafe
Rupert Weber gimp at leguanease.org
Documentation and other improvements
/babl-0.1.10
