Community-maintained fork of ImageProcessor for modern .NET. Fluent wrapper around System.Drawing.Common — resize, crop, watermark, mosaic, filters and more. Targets .NET Standard 2.0, .NET 8 and .NET 9 (Windows). https://codejq.github.io/ImageProcessor.Core/
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║ P R O C E S S O R · C O R E ║
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║ Fluent image processing — built on .NET, runs anywhere ║
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One library. Fluent API. No ceremony.
Stop wiring Graphics, ImageCodecInfo, and EncoderParameters by hand.
Every operation is a single chained call — readable, testable, and composable.
using ImageProcessor;
using ImageProcessor.Imaging;
using ImageProcessor.Imaging.Formats;
// Resize + sharpen + save as PNG
using var factory = new ImageFactory();
factory.Load("input.jpg")
.Resize(new ResizeLayer(1280, 720))
.GaussianSharpen(5)
.Format(new PngFormat())
.Save("output.png");
// Mosaic (pixelate) a region — great for censoring faces / text
factory.Load("screenshot.png")
.Mosaic(new MosaicLayer(x: 100, y: 50, width: 200, height: 80,
size: new Size(10, 10)))
.Save("censored.png");
factory.Load("photo.gif")
.Mosaic(new MosaicLayer(450, 280, 140, 50, new Size(10, 10)))
.Save("photo_censored.gif");
Pipeline architecture
┌──────────┐
file/stream│ │
──────────► │ .Load() │
└────┬─────┘
│ Image + Format detected
▼
┌────────────────┐
│ Processor chain│ ◄── each .Method() enqueues a processor
│ [ P1, P2, P3 ]│
└────────┬───────┘
│ applied in order
▼
┌──────────┐
│ .Save() │──────► file / stream
└──────────┘
Each processor implements IGraphicsProcessor — you can also add your own:
public class MyProcessor : IGraphicsProcessor
{
public Image ProcessImage(ImageFactory factory)
{
// manipulate factory.Image
return factory.Image;
}
}
factory.Load("img.png")
.ApplyProcessor(new MyProcessor())
.Save("out.png");
Target frameworks
Framework
Support
Notes
.NET Standard 2.0
✅
.NET Framework 4.6.1+, .NET Core 2.0+
.NET 8 (Windows)
✅
Uses native GDI+ via System.Drawing.Common
.NET 9 (Windows)
✅
Uses native GDI+ via System.Drawing.Common
System.Drawing.Common is Windows-only on .NET 6+. This library targets net8.0-windows
and net9.0-windows for modern .NET to make that constraint explicit and safe.
Contributing
PRs and issues welcome. Please open an issue before submitting large changes.
