added binary argument 'wb' at file open

image2bit.py

@@ -62,6 +62,6 @@ array = framed_data.flatten()
 array = array.astype('uint8')
 array_bin = bytearray(array)
 
-f = open("dat/imagen_bin.dat", "w")
+f = open("dat/imagen_bin.dat", "wb")
 f.write(array_bin)
 f.close()