I have an NDVI image in ArcGIS 10.1 which is from -1 to 1. I have reclassified that image in 0 (range all negative value – non-green) and 1 (all positive value – green).
I have overlayed a 'fishnet' (rectangular grid) of 3 x 3 on image of 5 m resolution. In this case there are green and non green (1 and 0 values) in one fishnet cell.
I want to calculate the percentage coverage of the 'green' pixels within each cell of the fishnet grid (("AREA GREEN" / "AREA of CELL") * 100).
Best Answer
Since you have a shape file with polygons and the raster you can use the tool
Tabulate Area
fromSpatial Analyst
. The input dataset that defines the zones will be your 'fishnet' and the the dataset that defines the classes your raster. The output will be a table like this:the first column will have the unique values of your 'fishnet', for each line it will display the number of cells of value 0 and value 1 for each 'fishnet' ID.