def getDescriptors(self, path, featureExtraType):
'''
get all descriptors from images in the path
:param path: the image's path
:param featureExtraType: the feature type:sift or surf
:return: all images' descriptors
'''
featureExtra = FeatureExtractor()
descriptors = []
for p in path:
image = cv2.imread(p)
if (featureExtraType.upper() == "SIFT"):
dsc = featureExtra.getSiftFeature(image)
if (featureExtraType.upper() == "SURF"):
dsc = featureExtra.getSurfFeature(image)
descriptors.append(dsc)
return descriptors
