13bbfb8b27
* Start working on colour reduction with a constrained palette.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2726 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
97930521fc
* blur.c: add an argument to the gaussian convolution to specify an angle.
Of course since the kernel is no longer separable, it becomes awfully
slow with large images. Here is a tileable brushed metal texture:
# pipi pipi:random512x512 --wrap --blur 20x0r25 -o image.png
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2715 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
d6b8cca4ec
* context.c: implement various dithering commands and Gaussian blur.
* pipi.c: add "--blur" and "--dither" commandline options.
* blur.c dither.c: remove these examples, pipi.c works a lot better:
pipi src.png --blur 10 dest.png
pipi src.png --dither dbs dest.png
(and of course combinations are possible)
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2694 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
c269c219b2
* Get rid of test.c, it was no longer useful anyway.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2679 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
baa61a9f6d
* Handle alpha layer in floodfill (but don't make it conditionnal to the algorithm)
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2678 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
290e151913
* First shot of a floodfiller (both u32 and float, 4 neighbours)
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2676 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
0eda956bfc
* random.c: implement random dithering using a deterministic pseudo-RNG.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2671 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
41efcdecc0
* Prefix dithering functions with _dither_ to avoid namespace cluttering.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2666 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
6a3309663e
* ordered.c: implement Bayer dithering (pretty trivial).
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2665 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
bf31390d1e
* sharpen.c: add a sharpen filter example, using our generic convolution
routine. Note that it is not the "real" sharpen which should be built
on top of a gaussian kernel.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2662 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
c587c29021
* blur.c: fix the blur example’s argument checking.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2659 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
870828bc87
* edd.c: output MSD instead of RMSD in the displacement computation.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2657 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
87f8e922ab
* Error diffusion methods now support either raster or serpentine scan.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2656 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
99d8af784e
* pixels.c: support more conversion combinations.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2655 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
302ce37f8e
* ostromoukhov.c: Ostromoukhov's simple error diffusion algorithm.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2654 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
3e575ba28a
* dither.c: add an example program for dithering methods.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2652 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
18fd8276bd
* edd.c: output E_fast as well.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2647 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
5974ab95c5
* edd.c: example program that computes the Floyd-Steinberg displacement,
about twice as fast as the original code in research/2008-displacement.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2644 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
60dea0643d
* Add a blur example.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2604 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
735b2a5da0
* Checking in an old Rubik's cube dithering test.
git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2262 92316355-f0b4-4df1-b90c-862c8a59935f
16 lat temu
sam
jylam