opencv常见用法和opencv3-＞opencv4版本切换

  • 一、opencv4的一些语法用法记录
    • 1.1 cv::TermCriteria
      • 1.1.1 Public Types
      • 1.1.2 defaut constructor
      • 1.1.3 构造2
  • 二、opencv3-＞opencv4版本切换报错
    • 2.1 identifier "CV_AA" is undefined：
    • 2.2 identifier "CV_GRAY2RGB" is undefined：
    • 2.3 identifier "CV_CALIB_CB_ADAPTIVE_THRESH" is undefined
    • 2.4 fatal error: opencv/cv.h: No such file or directory
    • 2.5 fatal error: opencv/highgui.h: No such file or directory
    • 2.6 error: ‘CV_FONT_HERSHEY_SIMPLEX’ was not declared in this scope
    • 2.7 error: ‘CV_WINDOW_NORMAL’ was not declared in this scope
    • 2.8 error: ‘CV_INTER_LINEAR’ was not declared in this scope
    • 2.9 error: ‘CV_LOAD_IMAGE_GRAYSCALE’ was not declared in this scope
    • 2.10 pcl的一大段错误
    • 2.11 error: ‘CvMat’ does not name a type
      • 2.11.1
      • 2.11.2 CV_REDUCE_SUM（‘CV_REDUCE_SUM’ was not declared in this scope）
    • 2.12 error: static assertion failed: std::map must have the same value_type as its allocator on Ubuntu 20.04
    • 2.13 编译DBoW2等出现"OpenCV > 2.4.3 not found."
    • 2.14 Pangolin出错（orb_slam2在ubuntu20.04上编译时）
    • 2.15 fatal error: opencv/cxcore.h: No such file or directory
    • 2.16 CV_LOAD_IMAGE_UNCHANGED
    • 2.17 CV_MINMAX

opencv

一、opencv4的一些语法用法记录

1.1 cv::TermCriteria

The class defining termination criteria for iterative algorithms(这个类定义了迭代算法的终止准则)

1.1.1 Public Types

枚举类

enum Type {COUNT =1,MAX_ITER =COUNT,EPS =2
}
Enumerator Meaning
COUNT the maximum number of iterations or elements to compute最大迭代次数
MAX_ITER ditto最大迭代次数
EPS the desired accuracy or change in parameters at which the iterative algorithm stops迭代算法停止时所需的精度或参数变化

1.1.2 defaut constructor

cv::TermCriteria::TermCriteria()

1.1.3 构造2

cv::TermCriteria::TermCriteria(int type, int maxCount, double epsilon)
type The type of termination criteria, one of TermCriteria::Type
maxCount The maximum number of iterations or elements to compute
epsilon The desired accuracy or change in parameters at which the iterative algorithm stops

二、opencv3-＞opencv4版本切换报错

2.1 identifier “CV_AA” is undefined：

#include <opencv2/imgproc/imgproc_c.h>

2.2 identifier “CV_GRAY2RGB” is undefined：

#include <opencv2/imgproc/types_c.h>

2.3 identifier “CV_CALIB_CB_ADAPTIVE_THRESH” is undefined

CV_CALIB_CB_NORMALIZE_IMAGE
CV_CALIB_CB_FILTER_QUADS
CV_CALIB_CB_FAST_CHECK
CV_CALIB_CB_NORMALIZE_IMAGE
CV_CALIB_CB_FAST_CHECK
CV_CALIB_CB_ADAPTIVE_THRESH
CV_CALIB_CB_FILTER_QUADS

#include <opencv2/calib3d/calib3d_c.h>

2.4 fatal error: opencv/cv.h: No such file or directory

找不到opencv/cv.h文件
#include <opencv/cv.h>改为

#include <opencv2/imgproc.hpp>

2.5 fatal error: opencv/highgui.h: No such file or directory

#include <opencv2/highgui/highgui_c.h>

2.6 error: ‘CV_FONT_HERSHEY_SIMPLEX’ was not declared in this scope

CV_FONT_HERSHEY_SIMPLEX--->FONT_HERSHEY_SIMPLEX

opencv4部分取消了CV_前缀
正确作法：

#include <opencv2/imgproc/imgproc_c.h>

2.7 error: ‘CV_WINDOW_NORMAL’ was not declared in this scope

#include <opencv2/highgui/highgui_c.h>

2.8 error: ‘CV_INTER_LINEAR’ was not declared in this scope

将CV_删除转到变量定义查看某hpp，再寻找所对应的.h文件

#include<opencv2/imgproc/imgproc_c.h>

2.9 error: ‘CV_LOAD_IMAGE_GRAYSCALE’ was not declared in this scope

#include <opencv2/imgcodecs/legacy/constants_c.h>

2.10 pcl的一大段错误

pcl报错（types等等）
选择c++14 编译标准
https://blog.csdn.net/weixin_44001261/article/details/123299374.

2.11 error: ‘CvMat’ does not name a type

2.11.1

error: ‘CvMat’ has not been declared
cvCreateMat()

添加头文件

#include <opencv2/core/types_c.h>

2.11.2 CV_REDUCE_SUM（‘CV_REDUCE_SUM’ was not declared in this scope）

#include<opencv2/core/core_c.h>

查阅
https://docs.opencv.org.

2.12 error: static assertion failed: std::map must have the same value_type as its allocator on Ubuntu 20.04

链接: https://github.com/raulmur/ORB_SLAM2/pull/585/commits/d5c04468ce85d600f8a0a23fa280b0153fe115e0.

2.13 编译DBoW2等出现"OpenCV > 2.4.3 not found."

make[2]: *** No rule to make target '../Thirdparty/DBoW2/lib/libDBoW2.so', needed by '../lib/libORB_SLAM2.so'

改成对应的版本

2.14 Pangolin出错（orb_slam2在ubuntu20.04上编译时）

https://blog.csdn.net/qq_41035283/article/details/122093494.
https://blog.csdn.net/qq_37719890/article/details/122072958.
https://blog.csdn.net/guowenkang123/article/details/120172907.

2.15 fatal error: opencv/cxcore.h: No such file or directory

#include<opencv2/core/core_c.h>

2.16 CV_LOAD_IMAGE_UNCHANGED

添加头文件

#include <opencv2/imgcodecs/legacy/constants_c.h>
或者修改为
cv::IMREAD_UNCHANGED

2.17 CV_MINMAX

添加头文件

#include<opencv2/core/core_c.h>

opencv常见用法和opencv3-＞opencv4版本切换相关推荐

  1. Opencv常见用法和常见错误(一)

    原文:http://blog.csdn.net/hlx371240/article/details/47129851 一. 读取中文的路径的图像 使用OpenCV错误的读法如下: int main() ...

  2. ubuntu 查看opencv以及opencv4版本

    方式一: 查看opencv 3以及以下版本: pkg-config --modversion opencv 查看opencv4版本: pkg-config --modversion opencv4 方 ...

  3. 《OpenCV》配置多个C++版本的opencv（Ubuntu18.04）

    参考: 多个opencv版本配置:https://immortalqx.github.io/2021/07/06/opencv-notes-0/ 多个opencv版本配置与调用:https://blo ...

  4. OpenCV常见的优化方法和技巧总结

    OpenCV常见的优化方法和技巧总结 [尊重原创,转载请注明出处]http://blog.csdn.net/guyuealian/article/details/78540206 目录 OpenCV常 ...

  5. 解决 cv_bridge 与 opencv4 版本冲突问题

    解决了在 ROS melodic / noetic 下 cv_bridge 与 opencv4 版本冲突导致的 opencv 操作 导致 Segmentation fault (core dumped ...

  6. opencv：centos7中安装opencv4.3.0环境

    准备 安装依赖 sudo yum -y install epel-release # 安装epel扩展源 sudo yum -y install git gcc gcc-c++ cmake3 sudo ...

  7. ubuntu16.04 python版本切换以及pip工具基本知识点总结

    基本知识点: 1.ubuntu16.04自带python2.7 和python3.5,不要卸载系统自带的python2.7或3.5. 2. /usr/bin/python 和/usr/bin/pyth ...

  8. qt msvc 版本 移植 linux,Qt 程序异常结束 (MinGW 与 MSVC 版本切换)

    引言 针对Qt的两种版本,是不是有很多的疑惑,或者说在切换时,遇到了程序异常结束,函数未定义等很多奇怪的问题?今天我们来对常见的几种问题进行分析与解决. 简介 操作系统:window7 x64 编程I ...

  9. 解决Windows对JDK默认版本切换问题

    解决Windows对JDK默认版本切换问题 参考文章: (1)解决Windows对JDK默认版本切换问题 (2)https://www.cnblogs.com/ll409546297/p/659317 ...

最新文章

  1. Pinging ? with 32 bytes of data 故障解决
  2. CNCF 云原生系列文章
  3. 软件工程python就业方向-软件工程实践2019第二次作业
  4. java读取 500M 以上文件,java读取大文件
  5. python怎么放音乐_python怎么播放音乐
  6. 牛客网--密码验证合格程序（Java）
  7. Linux驱动(1)--关于驱动的概述
  8. 轻松生成小程序分享海报
  9. ubuntu10.10升级到11.4出错之问题解决
  10. activiti 启动tomcat乱码_使用 IntelliJ IDEA 创建 Web 工程以及启动 Tomcat 乱码问题处理...
  11. 三菱PlC程序大型项目QCPU+QD77MS16 宝贝包含一套完整的电气开发系统资料（包含plc程序，触摸屏程序，伺服模块设置程序，程序开发地址规划表）
  12. 【Mybatis源码解析】Mybatis源码体系结构
  13. 【python】画图保存为emf
  14. it职业生涯_如何通过这些有用的网站提升您的自由职业生涯
  15. Mac系统-重置MySQL登陆密码
  16. 不安全的文件上传基本原理(Unsafe file upload)
  17. chrome谷歌浏览器插件制作简易教程
  18. RxJava操作符学习APP
  19. 2017远景能源Java面试
  20. Python 协议攻击脚本(六): STP攻击

热门文章

  1. 10-02-12 南海
  2. 你们全都错用Excel了！
  3. 云机房服务器系统安装系统,美猴云西部数据中心机房服务器系统模板说明
  4. python十六进制转十进制
  5. 回归预测 | MATLAB实现CNN-LSTM卷积长短期记忆神经网络多输入单输出
  6. vim文字处理器(一)基本命令
  7. 最新宣传片带你1分钟了解下一代数据平台的魅力
  8. 如何利用可视化工具制作折线图？步骤是什么？
  9. EER(等概率错误)
  10. 多表查询-学生表，班级表，课程表，班级课程表