def local_par_hog(images):
inst = list()
HOGDESC = cv2.HOGDescriptor()
for image in images:
img, label = image
img = read_color_image(img)
img = cv2.resize(img, (128, 128), interpolation = cv2.INTER_AREA)
descriptor = HOGDESC.compute(img)
if descriptor is None:
descriptor = []
else:
descriptor = descriptor.ravel()
pairing = Instance(descriptor, label)
inst.append(pairing)
return inst
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