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175 Commits (345d9dc666816b32732241ce2fa001fc7437775b)

Author SHA1 Message Date
  sam 541e0213f7 * Goddammit, this time I'm fixing the f32 to u8 RGB conversion for real. 16 years ago
  sam 074e339ae3 * pixels.c: fix a bug in the f32 to u8 RGB conversion. 16 years ago
  sam f3a19b6ce5 * pixels.c: allow to call pipi_getpixels with PIPI_PIXELS_MASK_C. 16 years ago
  sam 23bd005f9c * pipi.h: add the PIPI_PIXELS_MASK_C pixel format for canvas boundaries. 16 years ago
  sam 24a1e37fc2 * pipi_internals.h: add two vector values for wrap around information. 16 years ago
  sam 7263c34dad * pixels.c: temporarily set internal gamma to 1.0 so that I can compare 16 years ago
  sam ac072123b4 * screen.c: add pipi_render_halftone() to create a 45-degree clustered dot 16 years ago
  sam 5ce1d403f6 * Allow bayer:256 constructs, which do the same as bayer:256x256. 16 years ago
  sam 6e0afb6f37 * Put the random and Bayer stock image generation into pipi/render/*. 16 years ago
  sam 645169e3b1 * Add the "halftone" dithering method, which uses classical halftone (aka. 16 years ago
  sam d12256b0f8 * stock.c: add new error diffusion kernels: Fan, Shiau-Fan, Stucki, Burkes, 16 years ago
  sam 44c9b8e15d * Get rid of the specific error diffusion functions, since our stock kernels 16 years ago
  sam 90c7527281 * Add pipi_dither_ediff(), a generic error diffusion dithering algorithm 16 years ago
  sam 6a9475464c * Do not prefix stock image names with "pipi:", it's redundant. 16 years ago
  sam 3784480d3b * Add a new image flag, u8, which indicates whether the image samples come 16 years ago
  sam 15bd183743 * Rename --rgb into --combine and add --split. Basic per-channel operations 16 years ago
  sam 6433a59c97 * rgb.c: implement pipi_red(), pipi_green() and pipi_blue() to extract 16 years ago
  sam e38943a327 * rgb.c: implement pipi_rgb(), to combine three RGB channels. 16 years ago
  sam 10baf86103 * pipi.c: implement --roll, RPL-style. 16 years ago
  sam b40fc1b330 * atkinson.c: implement Atkinson dithering. 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 ab1487e666 * Add --boxblur to the pipi command line. 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 baa3d82e4b * Move the palette reduction algorithm into pipi_reduce(). 16 years ago
  sam f6f7cbc060 * pixels.c: fix uninitialised w and h in pipi_getpixels. 16 years ago
  sam 9ba0524b9a * stock.c: the random stock image now creates RGB noise. 16 years ago
  sam e50ce5c67a * color.c: implement pipi_brightness() and pipi_contrast(). 16 years ago
  jylam 22b3af001b * Added string.h to list of included files, for memcpy() 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 48b881b6fa * Add pipi_tile, to create image mosaics. 16 years ago
  sam edd4a03a1e * Add the --scale flag. Resizes the image like --geometry, except with 16 years ago
  sam 97930521fc * blur.c: add an argument to the gaussian convolution to specify an angle. 16 years ago
  sam 3bcf099f65 * Allow pipi --blur to specify both the X and Y Gaussian sizes. Now we can 16 years ago
  sam 555ba323e9 * pipi.c: add the --geometry flag (only wxh for now). 16 years ago
  sam b74fad466b * Implement difference, multiply, divide, screen and overlay blend methods. 16 years ago
  sam 1e47505892 * convolution.c: move local function prototypes to convolution_template.h. 16 years ago
  sam b089bc14b6 * context.c: add the "swap" command to swap two images in the stack. 16 years ago
  sam da84205cde * subadd.c: add pipi_sub() and pipi_add() as another way to combine two 16 years ago
  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