A hybrid approach for water body identification from satellite images using NDWI mapping and histogram of gradients. - Tanmoy Halder; Debasish Chakraborty; Ramen Pal; Sunita Sarkar; Somnath Mukhopadhyay; Nishtha Roy; Sunil Karforma (Innov. Syst. Softw. Eng., 2024)