Using pythons open function for .png Image

Im getting an error when using pythons inbuild function “open” and don’t know how to get it to work for png files.

Examplecode: img =open('here.png').read()

Error: UnicodeDecodeError: 'charmap' codec can't decode byte 0x90 in position 101: character maps to <undefined>


To open images, i suggest you to use opencv or PIL module of python.
Using OpenCV:

import cv2
img = cv2.imread('here.png',0)

Using PIL:

from PIL import Image
im ="here.png")

If you just want to open using open :

img =open('here.png','rb').read()