For many years I have used Sidelook (http://www.appleco.ch/) to assess understorey structure. However, I am using Linux for a few years and do not intend to return to Windows. Thus, I would like some tool that can run other metrics than the number of pixels based on a digital image (area).
The Sidelook is originally based on FRAGSTATS metrics. However, the R alternative for FRAGSTATS (landscapemetrics) runs only with raster objects.
[1] ZEHM, A., NOBIS, M., SCHWABE, A. (2003): Multiparameter analysis of vertical vegetation structure based on digital image processing. Flora 198(2): 142-160.
[2] NOBIS, M., HUNZIKER, U. (2005): Automatic thresholding for hemispherical canopy-photographs based on edge detection. Agricultural and Forest Meteorology 128 (2): 243-250.
Hello!
I am not an expert and I do not know your method in particular, but I want to point out the fact that the "brick" function in the R package raster allows any multi-band file, including pictures.
Every subsequent raster analysis will work after importing a picture this way. I am used to analyse leaf pictures with the raster package.
Hope it would help!
Lucas
Lucas Deschamps, thank you very much! I ran in a different way, but based on your tips.
I used the EBImage package to prepare the image before and saved it as "tiff". Then, I loaded and calculated using raster and ladscapemetrics packages, respectively.
All the best.
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