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36 Commits (916f5791940754a1bac409150b9104ac40e84313)

Author SHA1 Message Date
  sam 916f579194 * blur.c: use the template system for the boxblur functions. 16 years ago
  sam 5a9d928338 * blur.c: fix the separate filter optimisation in the blur code by not 16 years ago
  sam 8ddfafa5ba * Rework the convolution template system. 16 years ago
  sam db9a8eae50 * convolution_template.h: clamp output values after a convolution. 16 years ago
  sam 36fb60cacf * transform.c: implement pipi_rotate90, pipi_rotate180 and pipi_rotate270. 16 years ago
  sam 2da45f954b * Implement pipi_vflip() and pipi_hflip(). 16 years ago
  sam 412dafd400 * median.c: oops, removed old debugging hack from pipi_median(). 16 years ago
  sam 0cab178432 * color.c: implement pipi_threshold(). 16 years ago
  sam 31fec9b526 * Add pipi_dilate() / pipi_erode() and --dilate / --erode. 16 years ago
  sam 114afed869 * median.c: fix the RGBA median filter. 16 years ago
  sam d9f3b654bc * median.c: add a median filter. Highly unoptimised for now. 16 years ago
  sam a1ad690056 * blur.c: proper box blur implementation that runs linearly with 16 years ago
  sam 8e5b11ae39 * convolution_template.h: disambiguate parentheses. 16 years ago
  sam 8996a532df * blur.c: improve the Gaussian kernel interpolation. 16 years ago
  sam e50ce5c67a * color.c: implement pipi_brightness() and pipi_contrast(). 16 years ago
  sam 37ab68e449 * blur.c: improve the Gaussian kernel generation by interpolating its 16 years ago
  sam 18e1cc4471 * Add pipi_invert() to invert an image's colours. 16 years ago
  sam 97930521fc * blur.c: add an argument to the gaussian convolution to specify an angle. 16 years ago
  sam 1e47505892 * convolution.c: move local function prototypes to convolution_template.h. 16 years ago
  sam 7f3e08d021 * convolution.c: support for wrap-around in convolutions. 16 years ago
  sam ec187df115 * convolution_template.h: split convolution routines into separate functions 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 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 89f35cb8fd * convolution.c: generic convolution method. Does not take advantage of 16 years ago
  sam 4a278923ff * blur.c: adapt the kernel size to large values of dx and/or dy. 16 years ago
  sam a11f92ff95 * blur.c: support for greyscale images. 16 years ago
  sam 877e7b21a9 * filter/blur.c: avoid annoying side effects with very small or negative 16 years ago
  sam ea38654c88 * filter/blur.c: minor optimisation in the kernel generation. 16 years ago
  sam 4a857277a7 * blur.c: support for variable blur radius and Gaussian offset. 16 years ago
  sam 42af43ad99 * blur.c: separated blur; it's now incredibly faster. 16 years ago
  sam af0c7f52fb * blur.c: fix overflow errors. 16 years ago
  sam 31328a14aa * Big API reorganisation. Now libpipi can transparently convert between 16 years ago
  sam 7d147f3576 * Test implementation of Gaussian blurring. It's awfully slow and does not 16 years ago