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 vote234 views1 answer
Check if key exists in sesson python flask
Python
1 vote183 views1 answer
Python get cpu cores
Python
0 vote267 views1 answer
How to write to a netcdf file using xarray
Python
0 vote183 views1 answer
Get most recurring element in a list python
Python
1 vote171 views1 answer
Pandas drop column by index range
Python
1 vote205 views3 answers
Uninstall python ubuntu 18.04
Python
0 vote179 views1 answer
Python .exe long start
Python
0 vote169 views1 answer
How to remove no data times plotly
Python
0 vote322 views1 answer
13 pseudo random numbers between 0 to 3 python
Python
0 vote197 views1 answer
Python chatbot error
Python