I found a decent online photo editor that is free and can do the SRAIL test for checking coils.
https://pixlr.com/editor/1. add your stamp photo
2. add "duplicate layer"
3. modify translucency
4. use "marquee tool" to select a side
5. select "Free transform" to move or flip the selection
It worked pretty easily and quickly for me. Hope that helps anyone who, like me, is too cheap to buy photoshop.
Posted 08/06/2015 3:40 pm
