ubuntu14.04安装python3.4(系统自带)opencv3.4运行出错error: (-215) total() == 0 || data != __null in function M
< 返回列表时间: 2017-12-27来源:开源中国
HDC调试需求开发(15万预算),能者速来!>>>
各位朋友,我ubuntu14.04安装python3.4(系统自带)和opencv3.4,我测试了倒入import cv2模块没有出错,但是运行程序时出现如下错误: liuxin@sunshine-virtual-machine:~/work/python/opencv$ python3 test.py select timeout select timeout OpenCV Error: Assertion failed (total() == 0 || data != __null) in Mat, file /home/liuxin/opencv-3.4.0/modules/core/include/opencv2/core/mat.inl.hpp, line 500 Traceback (most recent call last): File "test.py", line 33, in <module> CaptureVideo('capturevideo', 0) File "test.py", line 16, in CaptureVideo ret, frame = cap.read() cv2.error: /home/liuxin/opencv-3.4.0/modules/core/include/opencv2/core/mat.inl.hpp:500: error: (-215) total() == 0 || data != __null in function Mat
我的程序源代码如下: #!/usr/bin/env python3 # -*- coding: utf-8 -*- # Author: LiuXin import cv2 import numpy as np def CaptureVideo(window_name, camera_id):   # cv2.namedWindow(window_name)   cap = cv2.VideoCapture(camera_id)   while True:     # 如果cap没有打开则将其打开     if not cap.isOpened():       cap.open(camera_id)     # 逐帧(frame-by-frame)读取视频内容     ret, frame = cap.read()     if not ret:       print('capture err.')       break     # 将当前帧转换成灰度图片     #grey = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)     # 显示图片     #cv2.imshow(window_name, grey)     cv2.imshow(window_name, frame)     if cv2.waitKey(1) & 0xff == ord('q'):       break   # 释放摄像头并销毁所有窗口   cap.release()   cv2.destroyAllWindows() if __name__ == '__main__':   CaptureVideo('capturevideo', 0)
感谢各位大神指教。
热门排行