使用Qt和OpenCV做的图片平滑器

最新推荐文章于 2022-11-21 15:37:31 发布

nimingzhe2008

最新推荐文章于 2022-11-21 15:37:31 发布

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CC 4.0 BY-SA版权

分类专栏：数字图像处理 Qt 文章标签： qt build x86 class signal image

本文链接：https://blog.youkuaiyun.com/nimingzhe2008/article/details/7745690

Qt 同时被 2 个专栏收录

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数字图像处理

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本博客介绍了一个简单的数字图像处理程序，使用C++和OpenCV实现图像的低通滤波处理。用户可以通过界面上的按钮加载、处理并保存图片。

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这是我这学期数字图像处理课的课程设计。

程序界面

原始图像

处理后的图像

虽然界面很简陋，但处理效果还好

mainwindow.h 文件

C/C++ code

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include<QFileDialog>
#include<opencv.hpp>
using namespace cv;
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
    Q_OBJECT
    
public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
    
private:
    Ui::MainWindow *ui;
    Mat image;    //载入的原始图片
    Mat result;    //处理后的图片
private slots:
    void liulan();    //载入图片
    void chuli();    //对图片进行低通滤波
    void baocun();    //保存图片
};
#endif // MAINWINDOW_H

mainwindow.cpp文件

C/C++ code

#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    connect(ui->liulanButton,SIGNAL(clicked()),this,SLOT(liulan()));
    connect(ui->xianshiButton,SIGNAL(clicked()),this,SLOT(chuli()));
    connect(ui->baocunButton,SIGNAL(clicked()),this,SLOT(baocun()));
}
MainWindow::~MainWindow()
{
    delete ui;
}
void MainWindow::liulan()  
{
    QString imageName=QFileDialog::getOpenFileName(this,"Open file");
    image=imread(imageName.toAscii().data());
}
void MainWindow::chuli()  
{
    cv::blur(image,result,cv::Size(5,5));
    imshow("result",result);
    imshow("image",image);
}
void MainWindow::baocun()  
{
    QString fileName= QFileDialog::getSaveFileName(this,"Save file");
    imwrite(fileName.toAscii().data(),result);

mainwindow.ui文件

XML code

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>400</width>
    <height>300</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralWidget">
   <widget class="QPushButton" name="liulanButton">
    <property name="geometry">
     <rect>
      <x>150</x>
      <y>40</y>
      <width>75</width>
      <height>23</height>
     </rect>
    </property>
    <property name="text">
     <string>浏览</string>
    </property>
   </widget>
   <widget class="QPushButton" name="xianshiButton">
    <property name="geometry">
     <rect>
      <x>150</x>
      <y>130</y>
      <width>75</width>
      <height>23</height>
     </rect>
    </property>
    <property name="text">
     <string>处理</string>
    </property>
   </widget>
   <widget class="QPushButton" name="baocunButton">
    <property name="geometry">
     <rect>
      <x>150</x>
      <y>200</y>
      <width>75</width>
      <height>23</height>
     </rect>
    </property>
    <property name="text">
     <string>保存文件</string>
    </property>
   </widget>
  </widget>
  <widget class="QMenuBar" name="menuBar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>400</width>
     <height>23</height>
    </rect>
   </property>
  </widget>
  <widget class="QToolBar" name="mainToolBar">
   <attribute name="toolBarArea">
    <enum>TopToolBarArea</enum>
   </attribute>
   <attribute name="toolBarBreak">
    <bool>false</bool>
   </attribute>
  </widget>
  <widget class="QStatusBar" name="statusBar"/>
 </widget>
 <layoutdefault spacing="6" margin="11"/>
 <resources/>
 <connections/>
</ui>

main.cpp文件

C/C++ code

#include <QtGui/QApplication>
#include "mainwindow.h"
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();
    
    return a.exec();
}

opencv_and_qt.pro文件

C/C++ code

#-------------------------------------------------
#
# Project created by QtCreator 2012-05-19T20:58:04
#
#-------------------------------------------------
QT       += core gui
TARGET = opencv_and_qt
TEMPLATE = app
SOURCES += main.cpp\
        mainwindow.cpp
HEADERS  += mainwindow.h
FORMS    += mainwindow.ui
INCLUDEPATH +=D:\OpenCV\opencv\build\include\opencv2 \
D:\OpenCV\opencv\build\include\opencv \
D:\OpenCV\opencv\build\include
CONFIG(release,debug|release)
{
    LIBS += D:\OpenCV\opencv\build\x86\vc10\lib\opencv_calib3d231.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_contrib231.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_core231.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_features2d231.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_flann231.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_gpu231.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_highgui231.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_imgproc231.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_legacy231.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_ml231.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_objdetect231.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_ts231.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_video231.lib
}
CONFIG(debug,debug|release)
{
    LIBS +=D:\OpenCV\opencv\build\x86\vc10\lib\opencv_calib3d231d.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_contrib231d.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_core231d.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_features2d231d.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_flann231d.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_gpu231d.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_highgui231d.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_imgproc231d.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_legacy231d.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_ml231d.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_objdetect231d.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_ts231d.lib \
D:\OpenCV\opencv\build\x86\vc10\lib\opencv_video231d.lib
}
RESOURCES += \
    resource.qrc