tamaño de imagen

import cv2
import os
files = os.listdir("INbreast/CC_image/CCresize/")
for file in files:
    if file == '.DS_Store':
        continue
    img = cv2.imread("INbreast/CC_image/CCresize/"+file)
    resize = cv2.resize(img, (256, 400), interpolation = cv2.INTER_AREA)
    cv2.imwrite("INbreast/CC_image/CCtestresize/" + file, resize)