Fig. 8
Comparison of the effectiveness of NDWI, EWI, MNDWI and INDWI in mining water extraction. (a) Landsat OLI false colour composite image (band 432) identified river bridges; (b) Jilin-1 high-resolution image (0.75 m resolution) identified river bridges; (c) Binary image from the NDWI method; (d) Binary image from the EWI method; (e) Binary image from the MNDWI method; (f) Binary image from the INDWI method; (g) Landsat OLI false colour composite image (band 432) identified the edge of the water body in the collapse zone; (h) Jilin-1 high-resolution image (0.75 m resolution) identified the edge of the water body in the collapse zone; (i) Binary image from the NDWI method; (j) Binary image from the EWI method; (k) Binary image from the MNDWI method; (l) Binary image from the INDWI method; (m) Landsat OLI false colour composite image (band 432) identified urban water body; (n) Jilin-1 high-resolution image (0.75 m resolution) identified urban water body; (o) Binary image from the NDWI method; (p) Binary image from the EWI method; (q) Binary image from the MNDWI method; (r) Binary image from the INDWI method.
