cv2.imread error

Hi guys. I have this code:

print(filename)
filepath = os.path.join(images_path, filename)
print(filepath)
image_raw = cv2.imread(filepath, cv2.IMREAD_COLOR)
print(image_raw)

And this is the output:

cam_1_00000000.jpg

C:/envs/TFRecords/train/cam_1_00000000.jpg

None

The filename is correct; the path is correct. Why do I have this “none”? What can I do? It once printed a matrix, that would be correct, I think, but I don’t know what I changed since that output.
Thanks for the help