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21 Commits (43e5e3a28d1745fb6059ef9a6a912737db56ae38)

Autor SHA1 Nachricht Datum
  sam 37ab68e449 * blur.c: improve the Gaussian kernel generation by interpolating its vor 17 Jahren
  sam 18e1cc4471 * Add pipi_invert() to invert an image's colours. vor 17 Jahren
  sam 97930521fc * blur.c: add an argument to the gaussian convolution to specify an angle. vor 17 Jahren
  sam 1e47505892 * convolution.c: move local function prototypes to convolution_template.h. vor 17 Jahren
  sam 7f3e08d021 * convolution.c: support for wrap-around in convolutions. vor 17 Jahren
  sam ec187df115 * convolution_template.h: split convolution routines into separate functions vor 17 Jahren
  sam 1ff729fd7b * convolution.c: fix a small memory leak in the convolution filter. vor 17 Jahren
  sam 77ec441434 * blur.c: implement box blur; currently runs in O(n) but we could make it vor 17 Jahren
  sam b7c2d1f847 * autocontrast.c: simple autocontrast filter; does not work very well. vor 17 Jahren
  sam 8c4591f1d9 * blur.c: remove the blurring code and use our generic convolution vor 17 Jahren
  sam 03ca8dc76d * convolution.c: automatically detect when a convolution filter is separable vor 17 Jahren
  sam 89f35cb8fd * convolution.c: generic convolution method. Does not take advantage of vor 17 Jahren
  sam 4a278923ff * blur.c: adapt the kernel size to large values of dx and/or dy. vor 17 Jahren
  sam a11f92ff95 * blur.c: support for greyscale images. vor 17 Jahren
  sam 877e7b21a9 * filter/blur.c: avoid annoying side effects with very small or negative vor 17 Jahren
  sam ea38654c88 * filter/blur.c: minor optimisation in the kernel generation. vor 17 Jahren
  sam 4a857277a7 * blur.c: support for variable blur radius and Gaussian offset. vor 17 Jahren
  sam 42af43ad99 * blur.c: separated blur; it's now incredibly faster. vor 17 Jahren
  sam af0c7f52fb * blur.c: fix overflow errors. vor 17 Jahren
  sam 31328a14aa * Big API reorganisation. Now libpipi can transparently convert between vor 17 Jahren
  sam 7d147f3576 * Test implementation of Gaussian blurring. It's awfully slow and does not vor 17 Jahren