image = cv2.imread(img_path)
#interpolation=cv2.INTER_CUBIC插值
BiCubic_big = cv2.resize(image,(60,80),interpolation=cv2.INTER_CUBIC)
#上下左右各扩充10个像素值
replicate = cv2.copyMakeBorder(BiCubic_big,10,10,10,10,cv2.BORDER_REPLICATE)