ForestCrowns: a transparency estimation tool for digital photographs of forest canopies

  • Authors: Winn, Matthew; Palmer, Jeff; Lee, S.-M.; Araman, Philip
  • Publication Year: 2016
  • Publication Series: General Technical Report (GTR)
  • Source:


ForestCrowns is a Windows®-based computer program that calculates forest canopy transparency (light transmittance) using ground-based digital photographs taken with standard or hemispherical camera lenses. The software can be used by forest managers and researchers to monitor growth/decline of forest canopies; provide input for leaf area index estimation; measure light transmission to the forest floor; analyze canopy gaps; detect disease, insect, or storm damage; and monitor health treatments. ForestCrowns can analyze entire images or target specific areas to obtain transparency estimates of individual tree crowns. The program can also store images and assessment results, allowing for periodic monitoring of canopies and crowns.

  • Citation: Winn, M.F.; Palmer, A.J.; Lee, S.-M.; Araman, P.A. 2016. ForestCrowns: a transparency estimation tool for digital photographs of forest canopies. e-Gen. Tech. Rep. SRS–215. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 10 p
  • Keywords: Crowns, forest canopy, light transmittance, monitoring, transparency.
  • Posted Date: October 3, 2016
  • Modified Date: October 7, 2016
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