downup.py 文件源码

def pyrDownUp(img, times=1):
    img_temp = img
    for i in xrange(int(times)):
        img_temp = cv.pyrDown(img_temp)
    img_new = img_temp
    for i in xrange(int(times)):
        img_new = cv.pyrUp(img_new)
    return img_new

# img = cv.imread("./test.jpg")
# img_new = pyrDownUp(img, 2)
# cv.imwrite("./new.jpg", img_new)