def extract_features_akaze(image, config):
options = pyfeatures.AKAZEOptions()
options.omax = config['akaze_omax']
akaze_descriptor_name = config['akaze_descriptor']
options.descriptor = akaze_descriptor_type(akaze_descriptor_name)
options.descriptor_size = config['akaze_descriptor_size']
options.descriptor_channels = config['akaze_descriptor_channels']
options.dthreshold = config['akaze_dthreshold']
options.kcontrast_percentile = config['akaze_kcontrast_percentile']
options.use_isotropic_diffusion = config['akaze_use_isotropic_diffusion']
options.target_num_features = config['feature_min_frames']
options.use_adaptive_suppression = config[
'feature_use_adaptive_suppression']
logger.debug('Computing AKAZE with threshold {0}'.format(
options.dthreshold))
t = time.time()
points, desc = pyfeatures.akaze(image, options)
logger.debug('Found {0} points in {1}s'.format(len(points),
time.time() - t))
if config['feature_root']:
if akaze_descriptor_name in ["SURF_UPRIGHT", "MSURF_UPRIGHT"]:
desc = root_feature_surf(desc, partial=True)
elif akaze_descriptor_name in ["SURF", "MSURF"]:
desc = root_feature_surf(desc, partial=False)
points = points.astype(float)
return points, desc
def extract_features_akaze(
image: np.ndarray, config: Dict[str, Any],
features_count: int) -> Tuple[np.ndarray, np.ndarray]:
options = pyfeatures.AKAZEOptions()
options.omax = config["akaze_omax"]
akaze_descriptor_name = config["akaze_descriptor"]
options.descriptor = akaze_descriptor_type(akaze_descriptor_name)
options.descriptor_size = config["akaze_descriptor_size"]
options.descriptor_channels = config["akaze_descriptor_channels"]
options.dthreshold = config["akaze_dthreshold"]
options.kcontrast_percentile = config["akaze_kcontrast_percentile"]
options.use_isotropic_diffusion = config["akaze_use_isotropic_diffusion"]
options.target_num_features = features_count
options.use_adaptive_suppression = config[
"feature_use_adaptive_suppression"]
logger.debug("Computing AKAZE with threshold {0}".format(
options.dthreshold))
t = time.time()
points, desc = pyfeatures.akaze(image, options)
logger.debug("Found {0} points in {1}s".format(len(points),
time.time() - t))
if config["feature_root"]:
if akaze_descriptor_name in ["SURF_UPRIGHT", "MSURF_UPRIGHT"]:
desc = root_feature_surf(desc, partial=True)
elif akaze_descriptor_name in ["SURF", "MSURF"]:
desc = root_feature_surf(desc, partial=False)
points = points.astype(float)
return points, desc