EO4Coding.Imaging

Image Resizing and caching for ASP.Net core middleware. For more detail visit http://wanderlustcoder.com/blog/2017/07/19/image-resizing-and-disk-caching-in-aspnet-core

Getting started

Run unit test under test directory to see the concepts and ideas on how the ImageProvider works.

The WebSample only return Hello world for all urls except for the ones that maps to the images url.

In my example http://localhost:57734/images/Test1~small.jpg will return Test1.jpg in the small size Makes sure that you have images available for this, the startup will try and copy Test1 to Test5 from a resource directory 4 paths up from the current image dir if they do not exist ..\..\..\..\EO4Codong.Imaging.Resources\Images\ (you can also download this repository)

The image Provider register by default these sizes, but you can register your own

 new Size() {Name="original",MaxX=0,MaxY=0}, //use 0 not to change the original size, this is also registered under the original size and will return the image as is
 new Size() {Name="original-cached",MaxX=0,MaxY=0}, //this return the original size, but it wil go through the resizing process which in most cases result in a smaller file size for the same image size, the compression algorithm used seem to compress more/beter, use the test cases to compare size. Test1.jpg in my example reduced from 14MB to 2.5MB using the same size
 new Size() {Name="xlarge",MaxX=1900,MaxY=1200 },
 new Size() {Name="large",MaxX=1024,MaxY=768 },
 new Size() {Name="medium",MaxX=800,MaxY=600 },
 new Size() {Name="small",MaxX=300,MaxY=240 },
 new Size() {Name="thumbnail",MaxX=160,MaxY=160 }