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MouseEvent.py
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MouseEvent.py
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# -*- coding: utf-8 -*-
"""
Created on Mon Jan 14 01:15:08 2019
@author: KIIT
"""
import cv2
import numpy as np
# Create a black imae and a window
windowName = 'Drawing'
img = np.zeros((512, 512, 3), np.uint8)
cv2.namedWindow(windowName)
def draw_circle(event, x, y, flags, param):
if event == cv2.EVENT_LBUTTONDBLCLK:
cv2.circle(img, (x, y), 40, (0, 0, 255), -1)
if event == cv2.EVENT_RBUTTONDBLCLK:
cv2.circle(img, (x,y), 20, (0, 255, 0), -1)
if event == cv2.EVENT_LBUTTONDOWN:
cv2.circle(img, (x,y), 20, (255, 0, 0), -1)
if event == cv2.EVENT_MOUSEWHEEL:
cv2.circle(img, (x,y), 20, (255, 255, 0), -1)
cv2.setMouseCallback(windowName, draw_circle)
def main():
while(True):
cv2.imshow(windowName, img)
if cv2.waitKey(20) == 27:
break
cv2.destroyAllWindows()
if __name__ == "__main__":
main()