A python wrapper for the fhog function of PDollar Toolbox. This function is widely used in visual tracking algorithms(e.g fDSST, ECO) to extract HOG feature.
python setup.py build_ext --inplace
import fhog
def fHOG(im_patch):
M = np.zeros(im_patch.shape[:2], dtype='float32')
O = np.zeros(im_patch.shape[:2], dtype='float32')
H = np.zeros([im_patch.shape[0]//4,im_patch.shape[1]//4, 32], dtype='float32') # python3
fhog.gradientMag(im_patch.astype(np.float32),M,O)
fhog.gradientHist(M,O,H)
return H- Fix warning in
fhog.cpp:
- DeprecationWarning: NPY_ARRAY_UPDATEIFCOPY, NPY_ARRAY_INOUT_ARRAY, and NPY_ARRAY_INOUT_FARRAY are deprecated, use NPY_WRITEBACKIFCOPY, NPY_ARRAY_INOUT_ARRAY2, or NPY_ARRAY_INOUT_FARRAY2 respectively instead, and call PyArray_ResolveWritebackIfCopy before the array is deallocated, i.e. before the last call to Py_DECREF.
- DeprecationWarning: UPDATEIFCOPY detected in array_dealloc. Required call to PyArray_ResolveWritebackIfCopy or PyArray_DiscardWritebackIfCopy is missing