See original article (Dealing with images in content management systems)...

Samples

Use the following component to upload your raw image and create the web image. Once your raw image has been uploaded the system will generate the canvas as a floating HTML layer on the page. The system will scale your selection so that the finished image is 203 pixels wide, no matter what shape your crop area was.


Image Maker
Width: 203
Height: arbitrary


Now for the home page image. You can either upload a new image or reuse one you've already uploaded by clicking the "previous images" button. In this case, both the width and height are constrained which means that the finished image has a fixed aspect ratio. The selection box maintains this fixed aspect ratio as you change its size.


Image Maker
Width: 203
Height: 152


Finally the thumbnail image. This too is constrained, this time to a square shape:


Image Maker
Width: 66
Height: 66