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61 Commits (027ac838629d7afa1a5de2f5402d2cbe1603025c)

Autor SHA1 Nachricht Datum
  sam e88e7d9e4d Clamp Y to 16 - 235, as the MPEG standard uses. vor 14 Jahren
  sam bd77b09b6e Add functions to convert from RGB to YUV and back. vor 14 Jahren
  sam 5fb0f89a9d Do not touch the alpha layer in pipi_contrast(). vor 15 Jahren
  sam 5d219697bf That optimisation sucked. Reverted median filter to something that works vor 15 Jahren
  sam 3f6424fb1e Improve the median filter performance. vor 15 Jahren
  sam 859e659c5b Implement pipi_rotate(). Currently nearest-neighbour only, supersample if vor 15 Jahren
  sam b473f55d2f Do not touch alpha values when modifying brightness or contrast. vor 15 Jahren
  sam e7c1b11fad Add missing M_PI definition in wave.c for Win32 compilation. vor 15 Jahren
  sam 25eac661af wave.c: implement pipi_wave() in addition to pipi_sine(). The effect is vor 15 Jahren
  sam 78c5fad50e wave.c: rename pipi_wave() into pipi_sine(). vor 15 Jahren
  sam b7e3368c23 wave.c: change the wave arguments. The format is now eg. 150x100+10r1.3 where vor 15 Jahren
  sam 37a1e5606e wave.c: better behaviour around image edges. vor 16 Jahren
  sam 4936ebfa16 Fix a very old crash in the box blur filter that occurred when the image vor 16 Jahren
  sam f0b30c6fa1 Properly handle alpha components in the convolution code. vor 16 Jahren
  sam 2ff222affb Add a wave filter for crappy sine effects. vor 16 Jahren
  sam 1ff231b9f7 Change _C pixel format suffixes into _U8 for more clarity. vor 16 Jahren
  sam bb926c7a95 Rename pipi_getpixel into pipi_get_pixels. vor 16 Jahren
  sam 4bfa33f1b9 Start writing Visual Studio projects. vor 16 Jahren
  sam 0eb36a6225 Support C99 types on Win32 through the same hacks as in libcaca. vor 16 Jahren
  sam 36438eed8f Fix headers. vor 16 Jahren
  sam 37ed52dc95 * median.c: oops, fix argument types in the qsort call. vor 16 Jahren
  sam 82bb59111c * median.c: use the libc's qsort to find the median value. Not really the vor 16 Jahren
  sam 0cca668930 * pipi_template.h: factor the last unrolled preprocessor loop. vor 16 Jahren
  sam daa741e235 * convolution.c: refactor the template functions, removing 30 lines of vor 16 Jahren
  sam 729fb74fec * blur.c: support wrap around images in box blur (it's actually support for vor 16 Jahren
  sam 916f579194 * blur.c: use the template system for the boxblur functions. vor 16 Jahren
  sam 5a9d928338 * blur.c: fix the separate filter optimisation in the blur code by not vor 16 Jahren
  sam 8ddfafa5ba * Rework the convolution template system. vor 16 Jahren
  sam db9a8eae50 * convolution_template.h: clamp output values after a convolution. vor 16 Jahren
  sam 36fb60cacf * transform.c: implement pipi_rotate90, pipi_rotate180 and pipi_rotate270. vor 16 Jahren
  sam 2da45f954b * Implement pipi_vflip() and pipi_hflip(). vor 16 Jahren
  sam 412dafd400 * median.c: oops, removed old debugging hack from pipi_median(). vor 16 Jahren
  sam 0cab178432 * color.c: implement pipi_threshold(). vor 16 Jahren
  sam 31fec9b526 * Add pipi_dilate() / pipi_erode() and --dilate / --erode. vor 16 Jahren
  sam 114afed869 * median.c: fix the RGBA median filter. vor 16 Jahren
  sam d9f3b654bc * median.c: add a median filter. Highly unoptimised for now. vor 16 Jahren
  sam a1ad690056 * blur.c: proper box blur implementation that runs linearly with vor 16 Jahren
  sam 8e5b11ae39 * convolution_template.h: disambiguate parentheses. vor 16 Jahren
  sam 8996a532df * blur.c: improve the Gaussian kernel interpolation. vor 16 Jahren
  sam e50ce5c67a * color.c: implement pipi_brightness() and pipi_contrast(). vor 16 Jahren
  sam 37ab68e449 * blur.c: improve the Gaussian kernel generation by interpolating its vor 16 Jahren
  sam 18e1cc4471 * Add pipi_invert() to invert an image's colours. vor 16 Jahren
  sam 97930521fc * blur.c: add an argument to the gaussian convolution to specify an angle. vor 16 Jahren
  sam 1e47505892 * convolution.c: move local function prototypes to convolution_template.h. vor 16 Jahren
  sam 7f3e08d021 * convolution.c: support for wrap-around in convolutions. vor 16 Jahren
  sam ec187df115 * convolution_template.h: split convolution routines into separate functions vor 16 Jahren
  sam 1ff729fd7b * convolution.c: fix a small memory leak in the convolution filter. vor 16 Jahren
  sam 77ec441434 * blur.c: implement box blur; currently runs in O(n) but we could make it vor 16 Jahren
  sam b7c2d1f847 * autocontrast.c: simple autocontrast filter; does not work very well. vor 16 Jahren
  sam 8c4591f1d9 * blur.c: remove the blurring code and use our generic convolution vor 16 Jahren