Straightforward implementation of calibrated photometric stereo with several datasets. Note that the images used in the example program are taken from the following project page:
http://courses.cs.washington.edu/courses/cse455/10wi/projects/project4/
The light directions are estimated with the chrome dataset inside the image folder.
As written before the following datasets were taken from the previously linked project page. I do not claim ownwership of the used images.