Hello!
I have recently found an image of a billet steel scanned with laser triangulation method. Image provided pretty entertaining test target for my image processing hobby but I obviously have no rights to use it in any professional or scientific way. Not to mention one image is not enough to do any meaningful research. That is why I am looking for a library of free or paid images with steel scans?
You can see the image under link below, Obr.1:
http://www.ufyz.feec.vutbr.cz/data/download/files/produkty/software_defekty.pdf
Thanks a lot!