pavlik1307

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    Minsk, Belarus

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  1. pavlik1307

    Error diffusion dithering

    @Eli, I added "Black and white 2-color palette" to the plugin, because it is used on your sample image. Also, before applying dithering, I changed image contrast to 70. I achieved almost the same result as on Github, but it is slightly different. I think that github author made some preprocessing and other actions in his algorithms.
  2. pavlik1307

    Error diffusion dithering

    @Eli, my plugin implements eleven dithering algorithm. "Sierra Lite" and two other Sierra algorithms are already included. See the list of available algorithms below:
  3. pavlik1307

    Error diffusion dithering

    @Joshua Lamusga, I can't parallelize dithering algorithm, because processing of following pixels depends on processing of previous pixels. But after your message, I realized that I could make neighbouring pixels be processed in parallel. I tried to use Parallel class with Partitioner class (to make processing more chunky). It works, but much longer than without parallelism. And I don't know why (I have experience using Parallel class, so it can't be my misunderstanding of its work).
  4. pavlik1307

    Error diffusion dithering

    @toe_head2001, moved plugin to Stylize menu, as you recommended. As for your question, I thought that this plugin could be useful and interesting for someone.
  5. This plugin allows you to reduce number of colors in an image with the help of eleven error diffusion dithering algorithms. You are able to choose one of the four software palettes. You can also enable "Serpentine scanning" to alternate scanning direction between lines. Unfortunately, these algorithms do not work quickly due to single-threadedness. The advantage of this plugin is correct work with any selection. Plugin: Effects > Stylize > Error diffusion dithering Examples: Download: ErrorDiffusionDithering.dll
  6. pavlik1307

    Trippy rainbow effect

    @lynxster4 I've just uploaded a new version of plugin. Now it belongs to Effects→Color menu.
  7. This effect is very simple - it converts every pixel brightness to rainbow spectrum color. Plugin has one slider to set spectrum offset. Plugin: Effects > Color > Trippy rainbow Examples: Download: TrippyRainbow.dll