I have this raster wich represent some areas of observation from 3 given points following a series of rules considering elevation and direction of the slope. Basically, the white-ish color represent no point can see this area (0); the orange area is seen from 1 point (1); and the brown area is seen by 2 points (2). Now, I have to calculate the area of each color, specialy the orange and brown ones, but I don't have a clue on how to do it. I tried to convert this raster to vector to calculate te area of the polygon; but when I do it there're lots of polygons and none of them seem to conservate the value of the pixel.
The raster I'm interested in was obtained by the cumulative viewshed tool.