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opencv cuda加速编译后调用python接口后报错ImportError: DLL load failed while impo...
source link: https://blog.csdn.net/wa_workforwa/article/details/112181984
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opencv cuda加速编译后调用python接口后报错ImportError: DLL load failed while importing cv2记录
我的环境：
- windows10
- python3.8.5
- cuda10.2
- cudnn7.6.4
- vs2017
结合以下两篇文章对CMAKE进行了配置（A篇中也分享了两篇博客)：
A篇
B篇
用vs2017生成后，python的site-pakages里并没有生成cv2的目录，则使用A篇中的在opencv生成目录中的python_loader中使用命令行
python setup.py install
python
>>>import cv2
ImportError: DLL load failed while importing cv
使用dependency walker查看python的site-package下生成的cv2.cp38-win_amd64.pyd文件的依赖情况，显示很多系统预装的dll文件依赖缺失
随后尝试了多种方法依旧报错。无意中使用python setup.py install在conda创建的python环境中安装opencv，在pip list中显示安装opencv，而不是opencv-python。这时用import cv2测试不再报错，并且用opencv自带的dnn调用yolov3进行目标检测时，速度明显较只安装opencv-python包有所提升，cuda的利用率也从0变到30%，说明支持cuda加速。
对比一下自己安装的python与conda下创建的python环境：
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