I want to extract HOG features from Handwritten Arabic Line Images. When I run the test_hog.py file from the scimage library from scikit. It runs without any errors but it doesnt print any features as output. Can anyone please help me how to print the features. The link to the program is https://code.google.com/p/pythonxy/source/browse/src/python/scikits.image/PLATLIB/skimage/feature/tests/test_hog.py?repo=xy-27&r=13342d4c8c84fdc4dd3201bbde6201d8ba5b0683