这是弹出的错误。
OpenCV(4.1.1) C:\ projects \ opencv-python \ opencv \ modules \ core \ src \ arithm.cpp:663: 错误:(-209:输入参数的大小不匹配)操作为 都不是'array op array'(其中数组具有相同的大小和相同的 通道数),也不能使用“ array op scalar”或“ scalar op array” 函数'cv :: arithm_op'我在StackOverflow中发现了类似的问题,但该问题是指图像。我不确定如何在我的代码中实现它。这是我找到的链接OpenCV - Sizes of input arguments do not match - addWeighted
...
import cv2
import numpy as np
cap = cv2.VideoCapture('C:\\Users\\User\\Downloads\\768x576.avi')
frame_width = int( cap.get(cv2.CAP_PROP_FRAME_WIDTH))
frame_height =int( cap.get( cv2.CAP_PROP_FRAME_HEIGHT))
fourcc = cv2.VideoWriter_fourcc('X','V','I','D')
out = cv2.VideoWriter("output.avi", fourcc, 5.0, (768,576))
ret, frame1 = cap.read()
ret, frame2 = cap.read()
print(frame1.shape)
print(frame2.shape)
while cap.isOpened():
diff = cv2.absdiff(frame1, frame2)
gray = cv2.cvtColor(diff, cv2.COLOR_BGR2GRAY)
blur = cv2.GaussianBlur(gray, (5,5), 0)
_, thresh = cv2.threshold(blur, 20, 255, cv2.THRESH_BINARY)
dilated = cv2.dilate(thresh, None, iterations=3)
contours, _ = cv2.findContours(dilated, cv2.RETR_TREE,
cv2.CHAIN_APPROX_SIMPLE)
for contour in contours:
(x, y, w, h) = cv2.boundingRect(contour)
if cv2.contourArea(contour) < 800:
continue
cv2.rectangle(frame1, (x, y), (x+w, y+h), (0, 255, 0), 2)
image = cv2.resize(frame1, (768,576))
out.write(image)
cv2.imshow("feed", frame1)
frame1 = frame2
ret, frame2 = cap.read()
if cv2.waitKey(40) == 27:
break
cv2.destroyAllWindows()
cap.release()
out.release()
...
自从我跟踪了视频中的所有内容以来,我预计不会出现任何错误。
我试图通过定义2帧找出从同一视频中检索到的差异。我是python和opencv的新手。我一直在关注https://www.youtube.com/watch?v = MkcUgPhOlP8&...]中的教程
[如果有人还在寻找答案,这就是您的解决方法。