error:ValueError: output of generator should be a tuple `(x, y, sample_weight)` or `(x, y)`. Found: None about keras-fcn

[JihongJu]

@jeansely I noticed:

raise IOError('Image {} does not exist.'.format(img_path))
OSError: Image ../data/VOC2011/JPEGImages/b'2009_002423'.jpg does not exist.

The b in front of '2009_002423' indicates the img_path is of type bytes. That's one of the features of python3. I think you need to handle this specifically in the codes. Maybe this blog is helpful for that.

[JihongJu]

This issue is closed because /voc2011 is added just as an example application. It is not as under active maintenance as the fcn package.

Therefore, it is NOT guaranteed to work in any environments. It will be excluded from the package in the future.