【OpenCV】编译opencv_contrib模块

川长思鸟来 2023-02-19 13:29 17阅读 0赞

opencv从2.x到3.x源码结构变动非常大，很多功能不完善、性能不稳定或测试不完全的模块，都被放在了extra\_modules（opencv\_contrib）里面。官方给出的解释是：所有新模块都应单独开发，并首先在opencv\_contrib中发布 ，当模块成熟并获得普及时，再将其移至opencv主库中，这时开发团队也将为该模块提供后续支持。

最近要用到一些特征点检测算法，3.0以后这些算法都移到了xfeacture2d模块中，下面记录一下编译过程。

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# 1. 编译OpenCV #

下载源码，按照常规思路编译即可，基本步骤：

*  cmake设置opencv源码目录、编译目录及安装目录（CMAKE\_INSTALL\_PREFIX）；
 *  “Configure”->“Generate”，选择编译器；
 *  编译源码。

![在这里插入图片描述][20200620231630516.png_pic_center]

# 2. 编译opencv\_contrib模块 #

**（1）下载并解压opencv\_contrib源码：**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NmYW45Mjc_size_16_color_FFFFFF_t_70_pic_center]

**（2）在opencv的cmake中设置OPENCV\_EXTRA\_MODULES\_PATH为opencv\_contrib源码路径：**

![在这里插入图片描述][20200620232419413.png_pic_center]  
**（3）“Configure”后选择需要编译的模块：**

“Configure”后会出现opencv\_contrib中模块的编译选项，选择需要编译的模块，并点击Configure和Generate。我这里编译了xfeatures2d模块，把他勾上：

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NmYW45Mjc_size_16_color_FFFFFF_t_70_pic_center 1]  
**（4）编译**

Generate完后打开工程直接编译即可。

# 3. 常见错误处理 #

## 3.1 找不到文件 ##

报错：无法打开包括文件：“vgg\_generated\_120.i”：No such file or directory。

![在这里插入图片描述][20200621103718513.png_pic_center]  
可以直接下载这些文件放到对应目录（xx/opencv\_contrib-3.x.x/modules/xfeatures2d/src）即可，这里给出地址：

*  [boostdesc\_lbgm.i][boostdesc_lbgm.i]
 *  [boostdesc\_bgm.i][boostdesc_bgm.i]
 *  [boostdesc\_bgm\_bi.i][boostdesc_bgm_bi.i]
 *  [boostdesc\_bgm\_hd.i][boostdesc_bgm_hd.i]
 *  [boostdesc\_binboost\_064.i][boostdesc_binboost_064.i]
 *  [boostdesc\_binboost\_128.i][boostdesc_binboost_128.i]
 *  [boostdesc\_binboost\_256.i][boostdesc_binboost_256.i]
 *  [vgg\_generated\_48.i][vgg_generated_48.i]
 *  [vgg\_generated\_64.i][vgg_generated_64.i]
 *  [vgg\_generated\_80.i][vgg_generated_80.i]
 *  [vgg\_generated\_120.i][vgg_generated_120.i]

## 3.2 无法引用头文件 ##

编译时会出现一些错误，编译xfeatures2d模块时下面的4个文件会出错，都是头文件引用路径出现问题，最简单的解决方案是把它改成绝对路径，不嫌麻烦的话也可以把这些头文件复制到工程include目录下或把头文件路径添加到CMakeLists.txt中。  
![在这里插入图片描述][20200620233107456.png_pic_center]  
![在这里插入图片描述][20200620233449734.png_pic_center]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NmYW45Mjc_size_16_color_FFFFFF_t_70_pic_center 2]  
![在这里插入图片描述][20200620233534210.png_pic_center]  
![在这里插入图片描述][20200620233549163.png_pic_center]

[20200620231630516.png_pic_center]: https://img-blog.csdnimg.cn/20200620231630516.png#pic_center
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[20200620232419413.png_pic_center]: https://img-blog.csdnimg.cn/20200620232419413.png#pic_center
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NmYW45Mjc_size_16_color_FFFFFF_t_70_pic_center 1]: https://img-blog.csdnimg.cn/2020062023263286.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NmYW45Mjc=,size_16,color_FFFFFF,t_70#pic_center
[20200621103718513.png_pic_center]: https://img-blog.csdnimg.cn/20200621103718513.png#pic_center
[boostdesc_lbgm.i]: https://raw.githubusercontent.com/opencv/opencv_3rdparty/34e4206aef44d50e6bbcd0ab06354b52e7466d26/boostdesc_lbgm.i
[boostdesc_bgm.i]: https://raw.githubusercontent.com/opencv/opencv_3rdparty/34e4206aef44d50e6bbcd0ab06354b52e7466d26/boostdesc_bgm.i
[boostdesc_bgm_bi.i]: https://raw.githubusercontent.com/opencv/opencv_3rdparty/34e4206aef44d50e6bbcd0ab06354b52e7466d26/boostdesc_bgm_bi.i
[boostdesc_bgm_hd.i]: https://raw.githubusercontent.com/opencv/opencv_3rdparty/34e4206aef44d50e6bbcd0ab06354b52e7466d26/boostdesc_bgm_hd.i
[boostdesc_binboost_064.i]: https://raw.githubusercontent.com/opencv/opencv_3rdparty/34e4206aef44d50e6bbcd0ab06354b52e7466d26/boostdesc_binboost_064.i
[boostdesc_binboost_128.i]: https://raw.githubusercontent.com/opencv/opencv_3rdparty/34e4206aef44d50e6bbcd0ab06354b52e7466d26/boostdesc_binboost_128.i
[boostdesc_binboost_256.i]: https://raw.githubusercontent.com/opencv/opencv_3rdparty/34e4206aef44d50e6bbcd0ab06354b52e7466d26/boostdesc_binboost_256.i
[vgg_generated_48.i]: https://raw.githubusercontent.com/opencv/opencv_3rdparty/fccf7cd6a4b12079f73bbfb21745f9babcd4eb1d/vgg_generated_48.i
[vgg_generated_64.i]: https://raw.githubusercontent.com/opencv/opencv_3rdparty/fccf7cd6a4b12079f73bbfb21745f9babcd4eb1d/vgg_generated_64.i
[vgg_generated_80.i]: https://raw.githubusercontent.com/opencv/opencv_3rdparty/fccf7cd6a4b12079f73bbfb21745f9babcd4eb1d/vgg_generated_80.i
[vgg_generated_120.i]: https://raw.githubusercontent.com/opencv/opencv_3rdparty/fccf7cd6a4b12079f73bbfb21745f9babcd4eb1d/vgg_generated_120.i
[20200620233107456.png_pic_center]: https://img-blog.csdnimg.cn/20200620233107456.png#pic_center
[20200620233449734.png_pic_center]: https://img-blog.csdnimg.cn/20200620233449734.png#pic_center
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NmYW45Mjc_size_16_color_FFFFFF_t_70_pic_center 2]: https://img-blog.csdnimg.cn/20200620233516300.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NmYW45Mjc=,size_16,color_FFFFFF,t_70#pic_center
[20200620233534210.png_pic_center]: https://img-blog.csdnimg.cn/20200620233534210.png#pic_center
[20200620233549163.png_pic_center]: https://img-blog.csdnimg.cn/20200620233549163.png#pic_center