Hi guys, I am new with OpenCV3.2 and I am trying to extract the contours of this image:
I am executing the following Python code but I can't manage the to extract the contours of the image,
import numpy as np
import cv2
im = cv2.imread('start.jpg')
imgray = cv2.cvtColor(im,cv2.COLOR_BGR2GRAY)
ret,thresh = cv2.threshold(imgray,127,255,0)
im, contours, hierarchy = cv2.findContours(thresh,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)
cv2.drawContours(im,contours,-1,(255,0,0),2)
for h,cnt in enumerate(contours):
mask = np.zeros(imgray.shape,np.uint8)
cv2.drawContours(mask,[cnt],0,255,-1)
mean = cv2.mean(im,mask = mask)
x, y, w, h = cv2.boundingRect(cnt)
print('X: ', x, 'Y: ', y, 'W: ', w, 'H: ', h)
cv2.rectangle(im, (x, y), (x + w, y + h), (255, 0, 0), 2)
cv2.imshow('win', im)
cv2.waitKey(0)
cv2.destroyAllWindows()
when I try to print the 4 coordinates `x, y, w, z` it prints out many rows, I think because is detecting all the rectangles in the image.
I am stuck here for a couple of hours now and I really can't find a solution.
Can anyone help me?
Thank you in advance
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