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(轉)python+opencv實現動態物體追蹤

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原文鏈接:https://blog.csdn.net/cike14/article/details/50649811

import cv2  
import numpy as np  
camera=cv2.VideoCapture(0)  
firstframe=None  
while True:  
    ret,frame = camera.read()  
    if not ret:  
        break  
    gray=cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)  
    gray=cv2.GaussianBlur(gray,(21,21),0)  
    
if firstframe is None: firstframe=gray continue frameDelta = cv2.absdiff(firstframe,gray) thresh = cv2.threshold(frameDelta, 25, 255, cv2.THRESH_BINARY)[1] thresh = cv2.dilate(thresh, None, iterations=2) # cnts= cv2.findContours(thresh.copy(),cv2.RETR_EXTERNAL,cv2.CHAIN_APPROX_SIMPLE)
x,y,w,h=cv2.boundingRect(thresh) frame=cv2.rectangle(frame,(x,y),(x+w,y+h),(0,0,255),2) cv2.imshow("frame", frame) cv2.imshow("Thresh", thresh) cv2.imshow("frame2", frameDelta) key = cv2.waitKey(1)&0xFF if key == ord("q"): break camera.release() cv2.destroyAllWindows()

效果圖

技術分享圖片

(轉)python+opencv實現動態物體追蹤