A simple image resizing server using SmartCrop and Imaging.

This is a pure Go solution, which means it's not as performant as some other C-based libraries like ImageMagick and OpenCV - it's pretty simple to switch out the crop/resize libraries, but I couldn't use external libraries on Heroku.

Just put the desired width, height, and source image URL in the url, e.g.:

http://localhost/200/400/www.example.com/theImage.jpg

Limitations

1. https sources only
2. Jpegs only

TODO

• reduce image.Image copying
• reference implementations of different imaging libraries
• performance testing
• manual crop position control (not just SmartCrop)