NMagickWand is now archived. There are now much better alternatives for processing images in .Net. There are 2 great libraries I would point you to for image processing:

If you want the best experience to use ImageMagick APIs, Magick.NET is your best option. This library also offers many packages that comes bundled with the necessary ImageMagick libraries itself so setup is quite simple!

This is another great image processing library that is fast, powerful, and completely written in .NET!

A .Net library to expose the MagickWand API from ImageMagick.

I am trying to move my personal projects to .Net Core, and the graphics support is not there right now. While there are lots of conversations happening about how to address this, I have not found working code that looks particularly compelling.

using NMagickWand;

namespace Test
{
    public class WrapperExample
    {
        public void MakeThumbnail()
        {
            MagickWandEnvironment.Genesis();

            using(var mw = new MagickWand("test.jpg"))
            {
                mw.ScaleImage(120, 120);
                mw.WriteImage("test2.jpg");
            }

            MagickWandEnvironment.Terminus();
        }
    }
}

• Install ImageMagick (currently targets v6)
• Add a reference to NMagickWand in your project.json
• Bring down the packages for your project via dnu restore

using NMagickWand;

namespace Test
{
    public class Example
    {
        public void MakeThumbnail(string srcFilename, string destFilename)
        {
            MagickWandApi.MagickWandGenesis();

            var wand = MagickWandApi.NewMagickWand();
            MagickWandApi.MagickReadImage(wand, srcFilename);
            MagickWandApi.MagickScaleImage(wand, (UIntPtr)120, (UIntPtr)120);
            MagickWandApi.MagickWriteImage(wand, destFilename);

            MagickWandApi.MagickWandTerminus();
        }
    }
}

• View the tests for more examples

This library was built by starting with scripting out the API calls, and then filling in types where needed (mostly enums). The first step of the process is to run tools/genapi - this currently runs in bash with awk. While I've tested this only on Linux, I hope it would run pretty cleanly elsewhere.

This tool will overwrite the src/NMagickWand/MagickWandApi_.cs file based on how it parses the header files that come with the development ImageMagick package.

From there, different types and enums were populated by hand.

I'm happy to accept pull requests. By submitting a pull request, you must be the original author of code, and must not be breaking any laws or contracts.

Otherwise, if you have comments, questions, or complaints, please file issues to this project on the github repo.

I hope to make many improvements to the library as time permits.

• update target frameworks for .net core
• Investigate options to bundle a statically compiled version of the library to simplify steps needed to use this.

NMagickWand is licensed under the MIT license. See LICENSE.md for more information.

• ImageMagick: http://imagemagick.org/
• ImageMagick License: http://www.imagemagick.org/script/license.php