何行かのpythonを片付けて一緒に仕事を探します

import cv2
import numpy as np
import sys

if __name__ == '__main__':
    if len(sys.argv) == 3:
        src1 = cv2.imread(sys.argv[1])
        src2 = cv2.imread(sys.argv[2])

        dst = np.zeros(src1.shape, np.uint8)
        cv2.absdiff(src1, src2, dst)

        cv2.imshow("src1", src1)
        cv2.imshow("src2", src2)
        cv2.imshow("dst", dst)

        cv2.waitKey(0)
        cv2.destroyAllWindows()
    else:
        print("%d param" % len(sys.argv))