如何使用 OpenCV 和 Python 以正确的方式将多个图像传递给函数

Question

I have 2 python files and one picture:

import numpy as np 
import cv2

def imageinput(image_name_with_extension):

    img = cv2.imread(image_name_with_extension,1)
    grayscale = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
    cv2.imshow("grayscaled.jpg",grayscale)

my picture:

and the next python file:

import numpy as np 
import cv2
from functions import imageinput


print(imageinput(image1.jpg))

and the following error message:

This is a simplified example of my problem. In this example the functions.py make my picture grayscale and then show me the grayscaled picture in a separate window. My problem is though i have 10 picture and i want my work like this:

import numpy as np 
import cv2
from functions import imageinput


print(imageinput(image1.jpg))
print(imageinput(image2.jpg))
print(imageinput(image3.jpg))
print(imageinput(image4.jpg))
print(imageinput(image5.jpg))
print(imageinput(image6.jpg))
print(imageinput(image7.jpg))
print(imageinput(image8.jpg))
print(imageinput(image9.jpg))
print(imageinput(image10.jpg))

I just want all my pictures work separately with the function i described above, but i get that error message. How can i solve this problem or what did i write wrong?

I use the following versions: Python 3.6.0 and OpenCV 4.1.1.26

Answer 1

将图像文件名放在引号之间。

print(imageinput('image1.jpg'))