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Basic object detection in python using OpenCv and Numpy - by Dustbiin

Create design by connecting dot's using opencv and numpy - by Dustbiin

Create basic design by using connecting dot's using your mouse-

I have been create this by using mouse event check out the code below-

use Python, OpenCv , NumPy

import numpy as np
import cv2

def click_event(event, x, y, flags, param):

if event == cv2.EVENT_LBUTTONDOWN:
print(x, " , ", y)
font = cv2.FONT_HERSHEY_SIMPLEX
strXY = str(x) + ' , ' + str(y)
# cv2.putText(img,strXY, (x, y), font, .1, (255, 255, 0), 2)
cv2.circle(img, (x, y), 3, (0, 0, 255), -1)
points.append((x, y))
if len(points) >= 2:
cv2.circle(img, points[-1], 3, (0, 0, 255), -1)
# cv2.putText(img,strXY, points[-1], font, .1, (255, 255, 0), 2)
cv2.line(img, points[-2], points[-1], (0, 0, 255), 1)
cv2.imshow("Image", img)

points = []
img = np.zeros((512, 512, 3))
cv2.imshow("Image", img)

cv2.setMouseCallback('Image', click_event)

cv2.waitKey(0)
cv2.destroyAllWindows()
 Check this output -

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