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 vote147 views1 answer
Pandas plot hide object type
Python
0 vote139 views1 answer
One function in numpy array
Python
3 votes139 views1 answer
Pandas concat and reset index
Python
0 vote156 views1 answer
Shebnag python
Python
1 vote156 views1 answer
Choose random file from directory
Python
6 votes168 views3 answers
Login system in django
Python Django
0 vote146 views1 answer
Linear zoeken python
Python
30 votes152 views6 answers
Find null values pandas
Python
3 votes143 views1 answer
Python wait 5 seconds then display
Python
4 votes154 views4 answers
Speech to write anything python code
Python