[ECOLOG-L] percent cover question

[Lorna S R Joachim]

Can anyone tell me how to calculate tropical canopy 
percent cover from digital photographs. In Photoshop one 
can get a distribution but is there a program that could 
calculate % cover quickly and easily?

Thanks
Dr. Lorna Joachim
Adjunct Prof. of Research in Psychology
University of New Mexico, Department of Psychology
ljoac...@unm.edu