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长沙红胖子Qt（长沙创微智科）博文大全：开发技术集合（包含Qt实用技术、树莓派、三维、OpenCV、OpenGL、ffmpeg、OSG、单片机、软硬结合等等）持续更新中…

Qt开发专栏：项目实战（点击传送门）

需求

1.打开图片；
2.矫正识别角点；
3.opencv摄像头操作子线程处理；
4.支持设置棋盘格的行列角点数；

背景

深入研究图像拼接细分支算法，产出的效果查看工具，验证算法单步思路。

Demo：affineTool_v1.1.0 windows运行包

在这里插入图片描述

在这里插入图片描述
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模块化部署

在这里插入图片描述

关键源码

AffineManager.h

#ifndef AFFINEMANAGER_H
#define AFFINEMANAGER_H// opencv
#include "opencv/highgui.h"
#include "opencv/cxcore.h"
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/opencv.hpp"
#include "opencv2/xphoto.hpp"
#include "opencv2/dnn/dnn.hpp"
// opencv_contrib
#include <opencv2/xphoto.hpp>
#include <opencv2/ximgproc.hpp>
#include <opencv2/calib3d.hpp>
#include <opencv2/features2d.hpp>
#include <opencv2/xfeatures2d.hpp>
#include <opencv2/xfeatures2d/nonfree.hpp>#include "cvui.h"#include <QImage>
#include <QTimer>class AffineManager: public QObject
{Q_OBJECT
public:explicit AffineManager(QObject *parent = 0);~AffineManager();public slots:void testOpencvEnv();                       // 测试环境public:cv::Point2f getLeftBottomOffsetPoint() const;cv::Point2f getCenterTopOffsetPoint() const;cv::Point2f getRightBottomOffsetPoint() const;int getChessboardColCornerCount() const;int getChessboardRowCornerCount() const;public:void setLeftBottomOffsetPoint(const cv::Point2f &offsetPoint);void setRightBottomOffsetPoint(const cv::Point2f &offsetPoint);void setCenterTopOffsetPoint(const cv::Point2f &offsetPoint);void setChessboardColCornerCount(int chessboardColCornerCount);void setChessboardRowCornerCount(int chessboardRowCornerCount);signals:void signal_srcImage(QImage image);void signal_srcImage(cv::Mat mat);void signal_resultImage(QImage image);void signal_resultImage(cv::Mat mat);void signal_inited(bool result);public slots:void slot_openImage(QString filePath);void slot_initImage();void slot_affineImage();protected:void initControl();protected:bool findChessboard(int rowCornerCount, int colCornerCount, cv::Mat &mat, std::vector<cv::Point2f> &vectorPoint2fCorners);public:static QImage mat2Image(cv::Mat mat);      // cv::Mat 转 QImageprivate:cv::Mat _mat;                       // 缓存一帧cv::Mat _resultMat;                 // 结果int _chessboardColCornerCount;      // 一列多少个角点int _chessboardRowCornerCount;      // 一行多少个角点private:                                // 计算内参和畸变系数cv::Mat _cameraMatrix;              // 相机矩阵（接收输出）cv::Mat _distCoeffs;                // 畸变系数（接收输出）std::vector<cv::Mat> _rotate;       // 旋转量（接收输出）std::vector<cv::Mat> _translate;    // 偏移量（接收输出）cv::Point2f _leftBottomPoint; // 仿射三点，对应原始cv::Point2f _rightBottomPoint;// 仿射三点，对应原始cv::Point2f _centerTopPoint;  // 仿射三点，对应原始cv::Point2f _leftBottomOffsetPoint; // 仿射三点，对应偏移cv::Point2f _rightBottomOffsetPoint;// 仿射三点，对应偏移cv::Point2f _centerTopOffsetPoint;  // 仿射三点，对应偏移
};#endif // AffineManager_H

AffineManager.cpp

...void AffineManager::slot_affineImage()
{cv::Point2f srcTraingle[3];cv::Point2f dstTraingle[3];srcTraingle[0] = _leftBottomPoint;srcTraingle[1] = _rightBottomPoint;srcTraingle[2] = _centerTopPoint;dstTraingle[0] = _leftBottomPoint  + _leftBottomOffsetPoint;dstTraingle[1] = _rightBottomPoint + _rightBottomOffsetPoint;dstTraingle[2] = _centerTopPoint   + _centerTopOffsetPoint;cv::Mat mat = cv::getAffineTransform(srcTraingle, dstTraingle);std::cout << srcTraingle[0] << srcTraingle[1] << srcTraingle[2] << endl;std::cout << dstTraingle[0] << dstTraingle[1] << dstTraingle[2] << endl;cv::warpAffine(_mat, _resultMat, mat, cv::Size(_mat.cols, _mat.rows));QImage image = mat2Image(_resultMat);emit signal_resultImage(image);
}
...