使用 python 降低相機的 FPS

Question

我正在從顯示原始 fps 設置為 25 的相機讀取幀。我試圖將其 FPS 降低到大約 6-7。

我正在同時讀取多個相機並將幀附加到相應相機的deque 。 我在這里使用了線程。

所以，到目前為止我正在這樣做，但沒有運氣

while True:
    try:
        # Read next frame from stream and insert into deque
        status, frame = self.capture.read()
        frame = cv2.resize(frame, (640, 360))

        if status:
            self.deque.append(frame)
        else:
            self.capture.release()
            self.online = False

Answer 1

frame_count = 1
        
while True:
    try:
    # Read next frame from stream and insert into deque
    status, frame = self.capture.read()
                    
    if frame_count % 4 == 0:
        frame = cv2.resize(frame, (640, 360))

        if status:
            self.deque.append(frame)
        else:
            self.capture.release()
            self.online = False
    frame_count += 1