for i in image_path_list:
image2 = cv2.imread(i)
image2 = cv2.resize(image2,(360,480))
for j in image_path_list:
    if i!=j:
        image1=cv2.imread(j)
        image1=cv2.resize(image1, (360,480))
        difference = cv2.subtract(image1, image2)

        result = not np.any(difference) #if difference is all zeros it will return False

        if result is True:

            print(i)
        else:

            continue

https://github.com/philipbl/duplicate-images