Omr sheet python stackoverflow

import cv2
import numpy as np

img=cv2.imread('test.png') #read image
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY) #turn image to gray
blur = cv2.GaussianBlur(gray,(3,3),0) #add blur
edges = cv2.Canny(blur,50,100) #find edges

contours, hierarchy = cv2.findContours(edges,cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE) #find contours
cv2.drawContours(img,contours,-1,(0,255,0),2) #draw contours
cv2.imshow('Contours in Green',img) #show contours in green

#Now you need to sort them out.

Source: stackoverflow.com

Similar codes

0 vote233 views1 answer
Multiplication table for number python codewars
Python
6 votes177 views2 answers
Dump json in file python
Python
1 vote189 views1 answer
Compile python to pyc
Python
0 vote176 views1 answer
Convert_text_to_hexadecimal_viva.py in python
Python
1 vote164 views1 answer
Python pandas apply function to one column
Python
0 vote177 views1 answer
Fastest way to Convert Integers to Strings in Pandas DataFrame
Python
0 vote191 views1 answer
How to add column to heroku postgres in my django app
Python Django
7 votes194 views2 answers
How to generate requirements.txt django
Python Django
1 vote188 views2 answers
Python socket check if still connected
Python
1 vote141 views3 answers
Mail mailer
Python