使用openCV的QT中的图像处理 [英] Image Processing in QT using openCV

问题描述

我使用opencv2.3.1在QT中检测圆。

i am using opencv2.3.1 in QT for detecting circle.

我的Open CV目录是D：\OpenCV

my Open CV Directory is D:\OpenCV

这里是我的代码：

项目文件：

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = ImgProcessing
TEMPLATE = app


SOURCES += main.cpp\
        mainwindow.cpp

HEADERS  += mainwindow.h \

FORMS    += mainwindow.ui


INCLUDEPATH +=D:\\opencv\\build\\include

LIBS += -LD:\\opencv\\build\\x86\\vc10\\lib \
    -lopencv_calib3d231d \
    -lopencv_contrib231d \
    -lopencv_core231d \
    -lopencv_features2d231d \
    -lopencv_flann231d \
    -lopencv_gpu231d \
    -lopencv_haartraining_engined \
    -lopencv_highgui231d \
    -lopencv_imgproc231d \
    -lopencv_legacy231d \
    -lopencv_ml231d \
    -lopencv_objdetect231d \
    -lopencv_ts231d \
    -lopencv_video231d

主窗口我把QPushButton对Click事件我尝试做图像处理

and in the main window i put QPushButton on the Click event i am try to do the image processing

void MainWindow::on_pushButton_clicked()
{
    cv::Mat matOrg=cv::imread("D:\\temp\\Test_mar26-5-1.bmp");
    cv::Mat matProcessed;

    std::vector<cv::Vec3f> vecCircles;
    std::vector<cv::Vec3f>::iterator itrCircles;

    cv::inRange(matOrg,cv::Scalar(0,0,175),cv::Scalar(100,100,256),matProcessed);
    cv::GaussianBlur(matProcessed,matProcessed,cv::Size(9,9),1.5);
    cv::HoughCircles(matProcessed,vecCircles,CV_HOUGH_GRADIENT,2,matProcessed.rows/4,100,50,10,400);

    for(itrCircles =vecCircles.begin();itrCircles !=vecCircles.end();itrCircles++)
    {
        ui->plainTextEdit->appendPlainText(QString("X: ")+ QString::number((*itrCircles)[0]));
        ui->plainTextEdit->appendPlainText(QString("Y: ")+ QString::number((*itrCircles)[1]));
        ui->plainTextEdit->appendPlainText(QString("Radius: ")+ QString::number((*itrCircles)[2]));
    }
}

但是问题是当我试图运行程序，我得到以下错误

the project building with out any issue. but the problem is when i try to run the program i am getting following error

开始

Starting

D：\ ImgProcessing-build-Desktop_Qt_5_0_0_MSVC2010_32bit_SDK\debug\ImgProcessing.exe ...

D:\ImgProcessing-build-Desktop_Qt_5_0_0_MSVC2010_32bit_SDK\debug\ImgProcessing.exe...

程序意外完成。

D：\ImgProcessing-build-Desktop_Qt_5_0_0_MSVC2010_32bit_SDK\debug\ImgProcessing.exe
退出代码-1073741515

D:\ImgProcessing-build-Desktop_Qt_5_0_0_MSVC2010_32bit_SDK\debug\ImgProcessing.exe exited with code -1073741515

我没有得到为什么它不运行？并且如果尝试评论整个块它正在运行（没有图像处理代码）。当我启用cv :: mat变量时，我得到运行时错误。

I am not getting why it's not running? and if try to comment the whole block it's running.(no image processing code). when i enable the cv::mat variable that time onwards i am getting the runtime error.

请帮助我解决这个问题。
我尝试处理的图片低于

please help me to fix the issue. the image i am trying to process is below

推荐答案

代码对我很好，没有错误。但是 vecCircles.size（）在此处显示为零。请在调试模式基础上建立断点（继续按F10）。

The code worked fine for me, no error at all. But vecCircles.size() shows zero here. Please build on debug mode and find breakpoints (keep pressing F10).

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