Example code not working

[ClashSAN]

encoded the image, then decoding returned nothing, not "test" like expected.

edit: tried with a different png image:
Traceback (most recent call last):
File "/home/me/whisper/decode.py", line 8, in
print(watermark.decode('utf-8'))
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte

[rgill02]

Instead of using method 'dwtDct' try using method 'dwtDctSvd' as it seems to be more reliable (at the cost of performance).