Cornell Box	Cornell Box's edges

Figure 1: Edge detection using Marr-Hildreth on the Cornell Box

A cathedral	A cathedral's edges

Figure 2: Edge detection using Marr-Hildreth on a photo of a cathedral




NOTE: More examples of my Marr-Hildreth implementation are available on my project web page at:
http://www.cs.utah.edu/~wyman/classes/imp/edge_detection/index.html