no_cells_height = int(height/CELL_SIZE)

# number of cells in height of maze image

no_cells_width = int(width/CELL_SIZE)

# number of cells in width of maze image

initial_point = (0, 0)

# start point coordinates of maze

final_point = ((no_cells_height-1),(no_cells_width-1))

# end point coordinates of maze

This may help you.