module‘cv2’hasnoattribute‘ximgproc’首先查看是否安装opencv-contrib-pythonpiplist|grepopencv显示opencv-contrib-python4.4.0.46opencv-python4.8.1.78opencv-python-headless4.7.0.72

应该是版本匹配问题opencv版本从4.4.046降至opencv4.4.044numpy版本从1.19.4降至1.19.2即可

环境介绍python3.7.3opencv-python4.4.0.46numpy1.19.3图片转换opencv读取文件img1=cv2.imread('buka.png')opencv读取中文路径图片

python版本：python3.7包版本Pillow7.2.0opencv-python4.4.0.46redis2.10.5importosimportredisimportjsonfromPILimportImageimportrequestsimportcv2ascvdefimage_jpg

modulenotfounderror:nomodulenamed‘cv2.cv2’考虑：python与opencv-python的包的版本匹配问题，pipinstallopencv-python==4.4.0.46

tensorflow为例，用的是清华镜像源）pipinstalltensorflow-ihttps://pypi.tuna.tsinghua.edu.cn/simplepipinstallopencv-python==4.4.0.46

opencv4.4.0+ffmpeg实现视频图像处理问题描述：importcv2报错dll找不到1.pip命令安装opencv：pip--default-timeout=100installopencv-python==4.4.0.46

一、环境windows10+Anaconda二、安装opencv环境python==3.8.5numpy==1.19.2opencv-python==4.4.0.46opencv-contrib-python

参考链接:从https://pypi.org网站安装opencv-python4.4.0.46参考链接:InstallOpenCV-PythoninWindows使用pip安装:pipinstallopencv-python

raw.githubusercontent.com/TropComplique/ssd-pytorch/master/images/dogs-and-cats.jpg（直接wget可获得）测试版本：opencv-python4.4.0.46Pillow8.0.1

卸载这个版本的cv2#卸载pipuninstallopencv-python#重新安装pipinstallopencv-python==4.4.0.46换成了这个版本的就没问题。

yolov5依赖性：pip3installopencv-python==4.4.0.46-ihttps://pypi.tuna.tsinghua.edu.cn/simple/pip3installnumpy

本次代码运行环境为：python3.6.8opencv-python4.4.0.46opencv-contr

先上效果1.首先，要使用opencv的目标跟踪算法，必须要有opencv环境使用：opencv==4.4.0和opencv-contrib-python==4.4.0.46，lxml这三个环境包。

opencv-python读取摄像头视频流保存为视频文件opencv-pythonversion:4.4.0.46代码如下：importcv2#通过cv2中的类获取视频流操作对象capcap=cv2.VideoCapture