11. Image verify
11.1. Verify
Use the
Image.open(img_file).verify() method to verify the contents of a file.For data read from a file, this method attempts to determine if the file is broken, without actually decoding the image data.
If this method finds any problems, it raises suitable exceptions.
If you need to load the image after using this method, you must reopen the image file.
The verify_response if None for a valid file.
11.2. Verify image file
The code below verifies a image file.
from PIL import Image
from urllib.request import urlopen
def get_verify(img_file):
try:
verify_response = Image.open(img_file).verify()
print(f'{verify_response} was returned by verify')
im = Image.open(img_file)
print(f'{im.filename.split("/")[-1]} is a valid image')
# im.show()
except Exception:
print('Invalid image')
get_verify("test_images/alph_blocks.png")
get_verify("test_images/AtoZ.jpg")
11.3. Verify image url
The code below verifies a image at a url.
from PIL import Image
from urllib.request import urlopen
def get_verify_url(img_file):
try:
verify_response = Image.open(urlopen(img_file)).verify()
print(f'{verify_response} was returned by verify')
im = Image.open(urlopen(img_file))
filename = img_file.split("/")[-1]
print(f'{filename} is a valid image')
# im.show()
except Exception:
print('Invalid image')
url = "https://pc-pillow.readthedocs.io/en/latest/_images/tri.png"
get_verify_url(url)