I know it is possible to use tools like ArcGis's 'extract sample' tool to extract values at a given number of points. I would like to sample every pixel in a raster, and drill down through all other rasters (which have the same extent and resolution). How could I do this? I can use QGIS, Arc, or Idrisi.
Would the best way be to generate regular points at a spacing of 'RESOLUTION' and an initial offset of 'RESOLUTION/2'?