def latlon_tif_to_pixel(lat,lon):	
        import rasterio
        import pyproj
        import numpy as np
        filepath = 'ndvi.tif'
        #filepath = 'Tile_TCI.jp2'
        with rasterio.open(filepath) as src:
            utm = pyproj.Proj(src.crs)
            lonlat = pyproj.Proj(init='epsg:4326')
            east,north = pyproj.transform(lonlat,utm,lon,lat)
            row,col =src.index(east,north)
            return row,col