Figure 7: Visual performance in extracted water bodies and spatial errors for Co Ngoin; October 7, 2000. (a) Landsat-7 ETM+ 543 band false-color image; (b) aggregated reference water map from ETM+ image; (c) extracted result from downscaled image at 250 m; (d) extracted result from original image at 500 m; (e) result of spatial error for (c) map; (f) result of spatial error for (d) map.