def prepro(I):
 I = I[35:195]
 I = I[::2, ::2, 0]
 I[(I == 144)] = 0
 I[(I == 109)] = 0
 I[(I != 0)] = 1
 return I.astype(np.float).ravel()

def prepro ( I ) : I = I [ 35 : 195 ] I = I [ : : 2 , : : 2 , 0 ] I [ ( I == 144 ) ] = 0 I [ ( I == 109 ) ] = 0 I [ ( I != 0 ) ] = 1 return I . astype ( np . float ) . ravel ( )
prepro 210x160x3 uint8 frame into 6400 1d float vector .