Execute computation of HoG features on input eopatch

            :param eopatch: Input eopatch
            :type eopatch: eolearn.core.EOPatch
            :return: EOPatch instance with new keys holding the HoG features and HoG image for visualisation.
            :rtype: eolearn.core.EOPatch

def execute(self, eopatch):
        """ Execute computation of HoG features on input eopatch

            :param eopatch: Input eopatch
            :type eopatch: eolearn.core.EOPatch
            :return: EOPatch instance with new keys holding the HoG features and HoG image for visualisation.
            :rtype: eolearn.core.EOPatch
        """
        for feature_type, feature_name, new_feature_name in self.feature:
            result = self._compute_hog(eopatch[feature_type][feature_name])
            eopatch[feature_type][new_feature_name] = result[0]
            if self.visualize:
                eopatch[feature_type][self.visualize_name] = result[1]

        return eopatch