C# 图片压缩 开源库

http://www.rasteredge.com/how-to/csharp-imaging/image-compressing/

http://www.rasteredge.com/dotnet-imaging/

http://freeimage.sourceforge.net/download.html

用
http://freeimage.sourceforge.net/download.html

https://www.nuget.org/packages/ImageResizer/