.NET implementation of dithering
Get Started
$ dotnet add package TimeBeanDitheringReadme
Dithering
.NET implementation of dithering
More examples can be found in Examples/
Usage
// load file
using var input = File.OpenRead(@"Examples/Mirana.png");
// get bitmap from file stream
using var originalBitmap = SKBitmap.Decode(input);
// stats
var width = originalBitmap.Width;
var height = originalBitmap.Height;
var rowBytes = originalBitmap.RowBytes;
var bytesPerPixel = originalBitmap.BytesPerPixel;
// pixelSpan that will be modified
var pixelSpan = originalBitmap.GetPixelSpan();
// reduces the number of colors to a fixed palette (e.g. 4 colors)
var quantizer = new LinearQuantizer(4);
// applies error diffusion dithering using Floyd–Steinberg
var processor = new FloydSteinbergProcessor(width, height, rowBytes, bytesPerPixel);
// dithring itself
var dithered = processor.Process(pixelSpan, quantizer);
// copy dithered span to original span
dithered.CopyTo(pixelSpan);
// save bitmap to file
var fileName = $"Out/dithered.png";
SaveBitmap(originalBitmap, fileName);
Contributing
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
Please make sure to update tests as appropriate.