Ubuntu16.04安装opencv-3.4.0和opencv_contrib-3.4.0以及配置yolo V3环境GPU版
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Ubuntu16.04安装opencv-3.4.0和opencv_contrib-3.4.0以及配置yolo V3环境GPU版
参考链接： 教程很详细
yolov3-tiny（yolov3）训练自己的数据集（一）：DarkNet + Ubuntu16.04 + GPU + OpenCV3.4.0 配置篇
配出过程报错以及很难通过官网下载的资源：
1.cudnn下载官网下载很慢
2.OpenCV-3.4.0以及下载opencv_contrib-3.4.0下载不完全等各种问题，下载文件尽量不要下载zip，在Ubuntu下最好下载tar.gz
3.在进行cmake-gui的gennerate源码编译时候，提示IPPICV: Download: ippicv_2017u3_lnx_intel64_general_20170822.tgz 下载超时
解决办法：将文件提前下载，并在ippicv.cmake文件夹下找到下载的github网址，将其替换为下载保存的文件的路径
参考链接：安装opencv时下载ippicv报错
ubuntu下安装opencv3.2出现-- ICV: Downloading ippicv_linux_20151201.tgz…
4在进行cmake-gui的generate的时候，xfeatures2d模块缺失boostdesc_bgm.i文件等下载超时的问题
解决办法参考链接：安装opencv时，xfeatures2d模块缺失boostdesc_bgm.i文件，下载超时问题
5.在进行make-j4编译安装的时候虽然不显示报错，但是重复了几次类似于下面这种：
from /home/agent/opencv-3.4.5/modules/cudaoptflow/src/cuda/pyrlk.cu:47:
/usr/local/cuda-10.0/include/device_functions.h:54:2: warning: #warning "device_functions.h is an internal header file and must not be used directly. This file will be removed in a future CUDA release. Please use cuda_runtime_api.h or cuda_runtime.h instead." [-Wcpp]
#warning "device_functions.h is an internal header file and must not be used directly. This file will be removed in a future CUDA release. Please use cuda_runtime_api.h or cuda_runtime.h instead."
^~~~~~~
In file included from /home/agent/opencv-3.4.5/modules/core/include/opencv2/core/cuda/functional.hpp:50:0,
from /home/agent/opencv-3.4.5/modules/cudaoptflow/src/cuda/pyrlk.cu:47:
/usr/local/cuda-10.0/include/device_functions.h:54:2: warning: #warning "device_functions.h is an internal header file and must not be used directly. This file will be removed in a future CUDA release. Please use cuda_runtime_api.h or cuda_runtime.h instead." [-Wcpp]
#warning "device_functions.h is an internal header file and must not be used directly. This file will be removed in a future CUDA release. Please use cuda_runtime_api.h or cuda_runtime.h instead."
^~~~~~~
In file included from /home/agent/opencv-3.4.5/modules/core/include/opencv2/core/cuda/functional.hpp:50:0,
from /home/agent/opencv-3.4.5/modules/cudaoptflow/src/cuda/pyrlk.cu:47:
/usr/local/cuda-10.0/include/device_functions.h:54:2: warning: #warning "device_functions.h is an internal header file and must not be used directly. This file will be removed in a future CUDA release. Please use cuda_runtime_api.h or cuda_runtime.h instead." [-Wcpp]
#warning "device_functions.h is an internal header file and must not be used directly. This file will be removed in a future CUDA release. Please use cuda_runtime_api.h or cuda_runtime.h instead."
解决办法：忽略，静静等待即可，过一会也可以编译完成。
可以参考链接：jetson nano编译安装opencv3.4.5+opencv_contrib-3.4.5时，能通过编译，但是安装时报错，错误信息如下：
的评论中也有提到。
6.配置成功后，运行测试报错：测试yolov3时报错：cuda error: out of memory darknet: ./src/cuda.c:36: check_error: Assertion `0’ failed.
参考链接：https://blog.csdn.net/kevineeo/article/details/84572589?spm=1001.2014.3001.5501
最后简单源码安装opencv的方法，但注意的是没有安装opencv-3.4.0-contrib，以及默认的安装路径。
ubuntu16.04 +opencv3.2.0安装笔记+Downloading ippicv_linux_20151201.tgz
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