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 vote296 views1 answer
Frogenset ito list pandas
Python
15 votes276 views2 answers
Python install package from code
Python
1 vote291 views1 answer
How to remove a string inside another string python
Python
0 vote277 views1 answer
Get video width and height cv2
Python
0 vote280 views1 answer
Pandas filter and change value
Python
0 vote282 views1 answer
Bold some letters of string in python
Python
0 vote299 views1 answer
Opencv loop video
Python
97 votes253 views6 answers
Download python
Python
60 votes276 views6 answers
Python list length
Python
0 vote297 views1 answer
Python open all files of type csv
Python