Image J will do it as Sarah said. Also, you might try throwing it in ArcView. Import the jpg and do raster analysis. You might need to regrid the pixel size to lower resolution. Or you can do it the old fashioned way. Print out the picture, cut out the canopy shots, weigh the canopy vs non-canopy parts of the pic and then you can calculate the percent = (canopy weight/total weight) x 100 = % canopy cover! :)
Malcolm On Wed, Oct 28, 2009 at 4:54 PM, Lorna S R Joachim <[email protected]> wrote: > 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 > [email protected] > -- Malcolm L. McCallum Associate Professor of Biology Managing Editor, Herpetological Conservation and Biology Texas A&M University-Texarkana Fall Teaching Schedule: Vertebrate Biology - TR 10-11:40; General Ecology - MW 1-2:40pm; Forensic Science - W 6-9:40pm Office Hourse- TBA 1880's: "There's lots of good fish in the sea" W.S. Gilbert 1990's: Many fish stocks depleted due to overfishing, habitat loss, and pollution. 2000: Marine reserves, ecosystem restoration, and pollution reduction MAY help restore populations. 2022: Soylent Green is People! Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.
