vs2019 + opencv4.0.1 + opencv_contrib4.0.1 + tesseract4.1 +cmake 源码编译安装与配置

本人机器环境：

操作系统：windows10

vs版本：vs2019

OpenCV版本4.0.1

一、exe安装

一般情况下，下载opencv 的exe安装包安装就可以了，配置可以参考网络上步骤配置环境变量，然后在vs里项目的属性管理器中配置包含目录、库目录以及附加依赖项就可以了。如下图

二、源码编译

如果要用到扩展的库，如opencv_contrib, 则需要从源码进行编译。本人选择用cmake编译。

首先，下载工具cmake; 

然后下载与你的opencv版本一致的opencv_contrib. 下载地址：https://github.com/opencv/opencv_contrib

选择版本如下图：

编译和配置过程参考：

https://blog.youkuaiyun.com/weixin_41991128/article/details/84593477

https://blog.youkuaiyun.com/qq_40666136/article/details/78620040

https://blog.youkuaiyun.com/qq_34447388/article/details/87944785

tesseract安装参考 https://www.cnblogs.com/tongye/p/10734342.html 以及https://blog.youkuaiyun.com/qq_29473063/article/details/80621115

注意：

1、opencv_contrib modules 目录不能复制粘贴，要选择目录。不然会报错，我遇到的是 Invalid character escape '\S'，还有人遇到的是其它的错误，如http://f.dataguru.cn/thread-926077-1-1.html

2、如项目中要用到SURF,勾选“OPENCV_ENABLE_NONFREE”选项

3、如果选中"BUILD_opencv_world"，这样最后的库是一个文件，如"opencv_world401.dll”

4、如果要使用tesseract, 需要先安装好tesseract, 注意编译opencv时在cmake配置选项中要把tesseract相关的路径配置进去，如下图

后续：

选中"BUILD_opencv_world"编译一直没有成功，只好放弃，编译生成的dll文件和lib文件就比较多

最终附加依赖库中添加的文件有：

tesseract41d.lib
pvt.cppan.demo.danbloomberg.leptonica-1.78.0.lib
opencv_aruco401d.lib

opencv_bgsegm401d.lib

opencv_calib3d401d.lib

opencv_ccalib401d.lib

opencv_core401d.lib

opencv_datasets401d.lib

opencv_dnn401d.lib

opencv_dpm401d.lib

opencv_face401d.lib

opencv_features2d401d.lib

opencv_flann401d.lib

opencv_fuzzy401d.lib

opencv_hdf401d.lib

opencv_highgui401d.lib

opencv_imgcodecs401d.lib

opencv_imgproc401d.lib

opencv_line_descriptor401d.lib

opencv_ml401d.lib

opencv_objdetect401d.lib

opencv_optflow401d.lib

opencv_photo401d.lib

opencv_plot401d.lib

opencv_reg401d.lib

opencv_rgbd401d.lib

opencv_saliency401d.lib

opencv_shape401d.lib

opencv_stereo401d.lib

opencv_stitching401d.lib

opencv_structured_light401d.lib

opencv_superres401d.lib

opencv_surface_matching401d.lib

opencv_text401d.lib

opencv_tracking401d.lib

opencv_video401d.lib

opencv_videoio401d.lib

opencv_videostab401d.lib

opencv_xfeatures2d401d.lib

opencv_ximgproc401d.lib

opencv_xobjdetect401d.lib

opencv_xphoto401d.lib