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90 Commits (a5ceceaf778dffa10a7d0e5c94c81791308f8c22)
 

Author SHA1 Message Date
  sam a5ceceaf77 * stock.c: allow arbitrary sizes for the bayer stock image, even if they 16 years ago
  sam 6fb5354eff * minmax.c: add pipi_min() and pipi_max() as another way to combine two 16 years ago
  sam 9bd6b555f9 * mean.c: implement pipi_mean() to compute a mean image. 16 years ago
  sam 31fd250bd2 * Support --autocontrast in pipi. 16 years ago
  sam 7f3e08d021 * convolution.c: support for wrap-around in convolutions. 16 years ago
  sam 103e0629a2 * pipi.c: implement the "--gray" flag for grayscale conversion. 16 years ago
  sam ec187df115 * convolution_template.h: split convolution routines into separate functions 16 years ago
  sam 25cdf35a86 * jajuni.c: add Jarvis-Judice-Ninke dithering. It's a Floyd-Steinberg-like 16 years ago
  sam b5500986b2 * floydsteinberg.c: minor optimisation in the FStein error propagation. 16 years ago
  sam b658564a1f * context.c: fix an old bug that was incorrectly rounding down blur values. 16 years ago
  sam ee6e43cf81 * stock.c: generate images with random noise. 16 years ago
  sam eb9a270380 * pipi_dither_ordered() now takes two arguments; any image can be used as 16 years ago
  sam 3014994c61 * codec.c: support for stock images in pipi_load(). 16 years ago
  sam d6b8cca4ec * context.c: implement various dithering commands and Gaussian blur. 16 years ago
  sam 0549f43287 * Start working on "pipi", a command-line libpipi tool. It will be similar 16 years ago
  sam 0f3943d0fe * Add functions that handle a stack-based processing queue. 16 years ago
  sam 1ff729fd7b * convolution.c: fix a small memory leak in the convolution filter. 16 years ago
  sam 77ec441434 * blur.c: implement box blur; currently runs in O(n) but we could make it 16 years ago
  sam b7c2d1f847 * autocontrast.c: simple autocontrast filter; does not work very well. 16 years ago
  sam c269c219b2 * Get rid of test.c, it was no longer useful anyway. 16 years ago
  jylam baa61a9f6d * Handle alpha layer in floodfill (but don't make it conditionnal to the algorithm) 16 years ago
  jylam 290e151913 * First shot of a floodfiller (both u32 and float, 4 neighbours) 16 years ago
  sam 53268650a7 * dbs.c: generate the initial halftone using random dithering instead of 16 years ago
  sam 0eda956bfc * random.c: implement random dithering using a deterministic pseudo-RNG. 16 years ago
  sam 18dd51e1a5 * Dithering algorithms no longer modify the original image. 16 years ago
  sam 2dc8bb35dd * pipi.c: fix a memory leak caused by empty picture having codec_format 16 years ago
  sam 66f9ce5ea4 * pipi.c: implement pipi_copy(). 16 years ago
  sam a17c6753e3 * pixels.c: store byte length and bits-per-pixel value in the pipi_pixels_t 16 years ago
  sam 41efcdecc0 * Prefix dithering functions with _dither_ to avoid namespace cluttering. 16 years ago
  sam 6a3309663e * ordered.c: implement Bayer dithering (pretty trivial). 16 years ago
  sam a6dcd80490 * dbs.c: optimise DBS by ignoring 16x16 cells that had no pixel changes for 16 years ago
  sam 2a3c7ca990 * dbs.c: improve the DBS human visual system kernel by adding two Gaussian 16 years ago
  sam bf31390d1e * sharpen.c: add a sharpen filter example, using our generic convolution 16 years ago
  sam 8c4591f1d9 * blur.c: remove the blurring code and use our generic convolution 16 years ago
  sam 03ca8dc76d * convolution.c: automatically detect when a convolution filter is separable 16 years ago
  sam c587c29021 * blur.c: fix the blur example’s argument checking. 16 years ago
  sam 89f35cb8fd * convolution.c: generic convolution method. Does not take advantage of 16 years ago
  sam 870828bc87 * edd.c: output MSD instead of RMSD in the displacement computation. 16 years ago
  sam 87f8e922ab * Error diffusion methods now support either raster or serpentine scan. 16 years ago
  sam 99d8af784e * pixels.c: support more conversion combinations. 16 years ago
  sam 302ce37f8e * ostromoukhov.c: Ostromoukhov's simple error diffusion algorithm. 16 years ago
  sam 2182fdfdbf * floydsteinberg.c: perform Floyd-Steinberg dithering on a serpentine path. 16 years ago
  sam 3e575ba28a * dither.c: add an example program for dithering methods. 16 years ago
  sam 628c2618da * dbs.c: new dithering function: Direct Binary Search. One of the best 16 years ago
  sam eaad4db6f9 * measure.c: there is now pipi_measure_msd in addition to pipi_measure_rmsd. 16 years ago
  sam 18fd8276bd * edd.c: output E_fast as well. 16 years ago
  sam 5974ab95c5 * edd.c: example program that computes the Floyd-Steinberg displacement, 16 years ago
  sam 4a278923ff * blur.c: adapt the kernel size to large values of dx and/or dy. 16 years ago
  sam 1408cff41d * Add Floyd-Steinberg grayscale dithering. 16 years ago
  sam 36da8b05dd * pixels.c: fix a typo in the dithering method that could cause crashes. 16 years ago