三、图像处理

1.灰度化

```//灰度化
QImage MainWindow::gray(QImage image){
QImage newImage =image.convertToFormat(QImage::Format_ARGB32);
QColor oldColor;
for(int y = 0; y < newImage.height(); y++)
{
for(int x = 0; x < newImage.width(); x++)
{
oldColor = QColor(image.pixel(x,y));
int average = (oldColor.red() + oldColor.green() + oldColor.blue()) / 3;
newImage.setPixel(x, y, qRgb(average, average, average));
}
}
return newImage;
}```

2.均值滤波

```//均值滤波
QImage MainWindow::junzhi(QImage image){
int kernel [3][3] = {
{1,1,1},
{1,1,1},
{1,1,1}};
int sizeKernel = 3;
int sumKernel = 9;
QColor color;
for(int x = sizeKernel/2;xwidth() - sizeKernel/2;x++)
{
for(int y= sizeKernel/2;yheight() - sizeKernel/2;y++)
{
int r = 0;
int g = 0;
int b = 0;
for(int i = -sizeKernel/2;i<=sizeKernel/2;i++)
{
for(int j = -sizeKernel/2;j<=sizeKernel/2;j++)
{
color = QColor(image.pixel(x+i,y+j));
r+=color.red()*kernel[sizeKernel/2+i][sizeKernel/2+j];
g+=color.green()*kernel[sizeKernel/2+i][sizeKernel/2+j];
b+=color.blue()*kernel[sizeKernel/2+i][sizeKernel/2+j];
}
}
r = qBound(0,r/sumKernel,255);
g = qBound(0,g/sumKernel,255);
b = qBound(0,b/sumKernel,255);
image.setPixel(x,y,qRgb( r,g,b));
}
}
return image;
}
```

3.边缘检测

```//边缘检测
QImage MainWindow::bianyuan(QImage image){
QImage newImage =image.convertToFormat(QImage::Format_ARGB32);
QColor color0;
QColor color1;
QColor color2;
QColor color3;
int  r = 0;
int g = 0;
int b = 0;
int rgb = 0;
int r1 = 0;
int g1 = 0;
int b1 = 0;
int rgb1 = 0;
int a = 0;
for( int y = 0; y < image.height() - 1; y++)
{
for(int x = 0; x < image.width() - 1; x++)
{
color0 =   QColor ( image.pixel(x,y));
color1 =   QColor ( image.pixel(x + 1,y));
color2 =   QColor ( image.pixel(x,y + 1));
color3 =   QColor ( image.pixel(x + 1,y + 1));
r = abs(color0.red() - color3.red());
g = abs(color0.green() - color3.green());
b = abs(color0.blue() - color3.blue());
rgb = r + g + b;

r1 = abs(color1.red() - color2.red());
g1= abs(color1.green() - color2.green());
b1 = abs(color1.blue() - color2.blue());
rgb1 = r1 + g1 + b1;

a = rgb + rgb1;
a = a>255?255:a;

newImage.setPixel(x,y,qRgb(a,a,a));
}
}
return newImage;
}```

4.伽马变换

```QImage MainWindow::gamma(QImage image){
double d=1.2;
QColor color;
int height = image.height();
int width = image.width();
for (int i=0;ifor(int j=0;jQColor(image.pixel(i,j));
double r = color.red();
double g = color.green();
double b = color.blue();
int R = qBound(0,(int)qPow(r,d),255);
int G = qBound(0,(int)qPow(g,d),255);
int B = qBound(0,(int)qPow(b,d),255);
image.setPixel(i,j,qRgb(R,G,B));
}
}
return image;
}```

5.亮度调节（槽函数）

```//亮度调节
void MainWindow::on_horizontalSlider_valueChanged(int value)
{
if(origin_path!=nullptr){				//origin_path需要换成你的图片路径
QImage image(origin_path);
int red, green, blue;
int pixels = image.width() * image.height();
unsigned int *data = (unsigned int *)image.bits();

for (int i = 0; i < pixels; ++i)
{
red= qRed(data[i])+ value;
red = (red < 0x00) ? 0x00 : (red > 0xff) ? 0xff : red;
green= qGreen(data[i]) + value;
green = (green < 0x00) ? 0x00 : (green > 0xff) ? 0xff : green;
blue= qBlue(data[i]) + value;
blue =  (blue  < 0x00) ? 0x00 : (blue  > 0xff) ? 0xff : blue ;
data[i] = qRgba(red, green, blue, qAlpha(data[i]));
}
QImage Image=ImageCenter(image,ui->label_show);
ui->label_show->setPixmap(QPixmap::fromImage(Image));
ui->label_show->setAlignment(Qt::AlignCenter);
ui->label_light->setText(QString::number(value));
}
else{
QMessageBox::warning(nullptr, "提示", "请先选择一张图片！", QMessageBox::Yes |  QMessageBox::Yes);
}

}```

6.二值化（可变）（槽函数）

```//二值化滑动条
void MainWindow::on_horizontalSlider_erzhi_valueChanged(int value)
{
if(origin_path!=nullptr){
QImage image(origin_path);
QImage images=gray(image);
int height=images.height();
int width=images.width();
int bt;
QColor oldColor;
for (int i = 0; i < height; ++i)
{
for(int j=0;jQColor(images.pixel(j,i));
bt = oldColor.red();
if(bt0;
}else{
bt=255;
}
images.setPixel(j,i, qRgb(bt, bt, bt));

}
}
QImage Image=ImageCenter(images,ui->label_show);
ui->label_show->setPixmap(QPixmap::fromImage(Image));
ui->label_show->setAlignment(Qt::AlignCenter);
ui->label_yuzhi->setText(QString::number(value));
}
else{
QMessageBox::warning(nullptr, "提示", "请先选择一张图片！", QMessageBox::Yes |  QMessageBox::Yes);
}
}```

7.对比度（函数调用）

```//调整对比度函数调用
QImage MainWindow::AdjustContrast(QImage image, int value)
{
int pixels = image.width() * image.height();
unsigned int *data = (unsigned int *)image.bits();
int red, green, blue, nRed, nGreen, nBlue;
if (value > 0 && value < 256)
{
float param = 1 / (1 - value / 256.0) - 1;

for (int i = 0; i < pixels; ++i)
{
nRed = qRed(data[i]);
nGreen = qGreen(data[i]);
nBlue = qBlue(data[i]);

red = nRed + (nRed - 127) * param;
red = (red < 0x00) ? 0x00 : (red > 0xff) ? 0xff : red;
green = nGreen + (nGreen - 127) * param;
green = (green < 0x00) ? 0x00 : (green > 0xff) ? 0xff : green;
blue = nBlue + (nBlue - 127) * param;
blue = (blue < 0x00) ? 0x00 : (blue > 0xff) ? 0xff : blue;

data[i] = qRgba(red, green, blue, qAlpha(data[i]));
}
}
else
{
for (int i = 0; i < pixels; ++i)
{
nRed = qRed(data[i]);
nGreen = qGreen(data[i]);
nBlue = qBlue(data[i]);

red = nRed + (nRed - 127) * value / 100.0;
red = (red < 0x00) ? 0x00 : (red > 0xff) ? 0xff : red;
green = nGreen + (nGreen - 127) * value / 100.0;
green = (green < 0x00) ? 0x00 : (green > 0xff) ? 0xff : green;
blue = nBlue + (nBlue - 127) * value / 100.0;
blue = (blue < 0x00) ? 0x00 : (blue > 0xff) ? 0xff : blue;

data[i] = qRgba(red, green, blue, qAlpha(data[i]));
}
}

return image;
}```

8.饱和度调整（函数调用）

```//饱和度函数调用
QImage MainWindow::AdjustSaturation(QImage Img, int iSaturateValue)
{
int red, green, blue, nRed, nGreen, nBlue;
int pixels = Img.width() * Img.height();
unsigned int *data = (unsigned int *)Img.bits();

float Increment = iSaturateValue/100.0;

float delta = 0;
float minVal, maxVal;
float L, S;
float alpha;

for (int i = 0; i < pixels; ++i)
{
nRed = qRed(data[i]);
nGreen = qGreen(data[i]);
nBlue = qBlue(data[i]);

minVal = std::min(std::min(nRed, nGreen), nBlue);
maxVal = std::max(std::max(nRed, nGreen), nBlue);
delta = (maxVal - minVal) / 255.0;
L = 0.5*(maxVal + minVal) / 255.0;
S = std::max(0.5*delta / L, 0.5*delta / (1 - L));

if (Increment > 0)
{
alpha = std::max(S, 1 - Increment);
alpha = 1.0 / alpha - 1;
red = nRed + (nRed - L*255.0)*alpha;
red = (red < 0x00) ? 0x00 : (red > 0xff) ? 0xff : red;
green = nGreen + (nGreen - L*255.0)*alpha;
green = (green < 0x00) ? 0x00 : (green > 0xff) ? 0xff : green;
blue = nBlue + (nBlue - L*255.0)*alpha;
blue = (blue < 0x00) ? 0x00 : (blue > 0xff) ? 0xff : blue;
}
else
{
alpha = Increment;
red = L*255.0 + (nRed - L * 255.0)*(1+alpha);
red = (red < 0x00) ? 0x00 : (red > 0xff) ? 0xff : red;
green = L*255.0 + (nGreen - L * 255.0)*(1+alpha);
green = (green < 0x00) ? 0x00 : (green > 0xff) ? 0xff : green;
blue = L*255.0 + (nBlue - L * 255.0)*(1+alpha);
blue = (blue < 0x00) ? 0x00 : (blue > 0xff) ? 0xff : blue;
}

data[i] = qRgba(red, green, blue, qAlpha(data[i]));
}

return Img;
}```

9.保存及水印

statusBar->showMessage("图片保存成功！"); } } else{ QMessageBox::warning(nullptr, "提示", "请先打开图片！", QMessageBox::Yes | QMessageBox::Yes); } } else //不加水印 { if(ui->label_show->pixmap()!=nullptr){ QString filename = QFileDialog::getSaveFileName(this, tr("保存图片"), "E:/Qtworks/MainWindow/images", tr("*.png;; *.jpg;; *.bmp;; *.tif;; *.GIF")); //选择路径 if (filename.isEmpty()) { return; } else { if (!(ui->label_show->pixmap()->toImage().save(filename))) //保存图像 { QMessageBox::information(this, tr("图片保存成功！"), tr("图片保存失败！")); return; } ui->statusBar->showMessage("图片保存成功！"); } }else{ QMessageBox::warning(nullptr, "提示", "请先打开图片！", QMessageBox::Yes | QMessageBox::Yes); } } } ">
```//保存及水印
void MainWindow::on_pushButton_save_clicked()
{
//需要有一个复选框判断是否要加水印
if(ui->checkBox->isChecked()){					//要加水印
if(ui->label_show->pixmap()!=nullptr){
QImage image2(ui->label_show->pixmap()->toImage());
QImage simage("E:/Qt/qtworks/MainWindow/images/name1.png");
int swidth = simage.width();
int sheight = simage.height();
int r,b,g;

for(int i=0; ifor(int j=0; jQColor(simage.pixel(j,i));
r=oldcolor2.red();
b=oldcolor2.blue();
g=oldcolor2.green();

if(r==0&&b==0&&g==0)
{
image2.setPixelColor(j,i,qRgb(0,0,0));
}else
{
//image.setPixelColor(j,i,qRgb(red,blue,green));
}
}

}

QString filename = QFileDialog::getSaveFileName(this,
tr("保存图片"),
"E:/Qtworks/MainWindow/images/signed_images.png",
tr("*.png;; *.jpg;; *.bmp;; *.tif;; *.GIF")); //选择路径
if (filename.isEmpty())
{
return;
}
else
{
if (!(image2.save(filename))) //保存图像
{
QMessageBox::information(this,
tr("图片保存成功！"),
tr("图片保存失败！"));
return;
}
ui->statusBar->showMessage("图片保存成功！");
}
}
else{
QMessageBox::warning(nullptr, "提示", "请先打开图片！", QMessageBox::Yes |  QMessageBox::Yes);
}

}
else //不加水印
{
if(ui->label_show->pixmap()!=nullptr){
QString filename = QFileDialog::getSaveFileName(this,
tr("保存图片"),
"E:/Qtworks/MainWindow/images",
tr("*.png;; *.jpg;; *.bmp;; *.tif;; *.GIF")); //选择路径
if (filename.isEmpty())
{
return;
}
else
{
if (!(ui->label_show->pixmap()->toImage().save(filename))) //保存图像
{

QMessageBox::information(this,
tr("图片保存成功！"),
tr("图片保存失败！"));
return;
}
ui->statusBar->showMessage("图片保存成功！");
}

}else{
QMessageBox::warning(nullptr, "提示", "请先打开图片！", QMessageBox::Yes |  QMessageBox::Yes);
}
}
}```

四、视频处理

```    connect(&timer, SIGNAL(timeout()), this, SLOT(onTimeout()));
connect(&timer, SIGNAL(timeout()), this, SLOT(updatePosition()));```

```#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QLabel>
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <QTimer>
#include <QImage>
#include <QMessageBox>
using namespace cv;

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
QImage gray(QImage image);//灰度化
QImage gray2(QImage image);//灰度化2
QImage setRGB(QImage image,int value_r,int value_g,int value_b);//调整rgb
QImage AdjustContrast(QImage image, int value);//调整对比度
QImage ImageCenter(QImage  qimage,QLabel *qLabel);//调整图片比例
QImage AdjustSaturation(QImage image, int value);//调整饱和度
QImage bianyuan(QImage image);//边缘
Mat masaike(Mat image);//马赛克
QStringList srcDirPathList;//图片list
int index =0;//图片index
int type=0;//视频操作类型
QImage  MatToQImage(const cv::Mat& mat);
QString stom(int s);
QImage junzhi(QImage image);
QImage fuhe(QImage images);
QImage gamma(QImage image);

private slots:

void on_action_Dock_triggered();

void on_action_Open_triggered();

void on_pushButton_clicked();

void onTimeout();		//需要手动添加

void updatePosition();	//需要手动添加，其余是转到槽时自动生成

void on_action_Save_triggered();

void on_pushButton_gray_clicked();

void on_pushButton_junzhi_clicked();

void on_action_L_triggered();

void on_horizontalSlider_valueChanged(int value);

void on_pushButton_junzhi_2_clicked();

void on_pushButton_junzhi_3_clicked();

void on_horizontalSlider_2_valueChanged(int value);

void on_pushButton_save_clicked();

void on_horizontalSlider_R_valueChanged(int value);

void on_pushButton_3_clicked();

void on_pushButton_4_clicked();

void on_pushButton_origin_clicked();

void on_horizontalSlider_G_valueChanged(int value);

void on_horizontalSlider_B_valueChanged(int value);

void on_pushButton_gamma_clicked();

void on_horizontalSlider_erzhi_valueChanged(int value);

void on_horizontalSlider_duibi_valueChanged(int value);

void on_horizontalSlider_baohe_valueChanged(int value);

void on_action_V_triggered();

void on_pushButton_6_clicked();

void on_pushButton_7_clicked();

void on_pushButton_8_clicked();

void on_VideohorizontalSlider_2_valueChanged(int value);

void on_pushButton_9_clicked();

void on_pushButton_10_clicked();

void on_pushButton_11_clicked();

void on_horizontalSlider_suofang_valueChanged(int value);

void on_pushButton_2_clicked();

void on_action_H_triggered();

void on_action_J_triggered();

void on_action_B_triggered();

void on_action_G_triggered();

void on_action_Y_triggered();

void on_action_About_triggered();

void on_pushButton_turnleft_clicked();

void on_pushButton_turnright_clicked();

void on_pushButton_turnleft_2_clicked();

void on_pushButton_turnleft_3_clicked();

void on_pushButton_5_clicked();

private:
Ui::MainWindow *ui;
bool language=true;
bool isstart=false;
QString origin_path;//目前处理的图片的原图
QString videoSrcDir;//视频路径
VideoCapture capture; //用来读取视频结构
QTimer timer;//视频播放的定时器
int beishu;//调节播放速率
int delay;//帧延迟时间
QMessageBox customMsgBox;//消息提示框

};
#endif // MAINWINDOW_H```

1.打开视频

textEdit->append("fail to open!"); ui->tabWidget->setCurrentIndex(1); ui->pushButton_6->setEnabled(true); //获取整个帧数 long totalFrameNumber = capture.get(CAP_PROP_FRAME_COUNT); //设置开始帧() long frameToStart = 0; capture.set(CAP_PROP_POS_FRAMES, frameToStart); //获取帧率 double rate = capture.get(CAP_PROP_FPS); delay = 1000 / rate; timer.start(delay); type=0; //timer.start(); isstart=!isstart; ui->pushButton_6->setStyleSheet("border-radius:32px;" "background-image: url(:/myImage/images/stop.png);border:none;") ; } } ">
```//打开视频
void MainWindow::on_action_V_triggered()
{
QString video_path = QFileDialog::getOpenFileName(this,tr("选择视频"),"E:/Qt/qtworks/MainWindow/images",tr("Video (*.WMV *.mp4 *.rmvb *.flv)"));
if(video_path!=nullptr){
//打开视频文件：其实就是建立一个VideoCapture结构
capture.open(video_path.toStdString());
//检测是否正常打开:成功打开时，isOpened返回ture
if (!capture.isOpened())
QMessageBox::warning(nullptr, "提示", "打开视频失败！", QMessageBox::Yes |  QMessageBox::Yes);
//ui->textEdit->append("fail to open!");
ui->tabWidget->setCurrentIndex(1);
ui->pushButton_6->setEnabled(true);
//获取整个帧数
long totalFrameNumber = capture.get(CAP_PROP_FRAME_COUNT);

//设置开始帧()
long frameToStart = 0;
capture.set(CAP_PROP_POS_FRAMES, frameToStart);

//获取帧率
double rate = capture.get(CAP_PROP_FPS);

delay = 1000 / rate;
timer.start(delay);
type=0;
//timer.start();
isstart=!isstart;
ui->pushButton_6->setStyleSheet("border-radius:32px;"
"background-image: url(:/myImage/images/stop.png);border:none;") ;
}
}

```

2.进度条随视频移动

``````//进度条随视频移动
void MainWindow::updatePosition(){
long totalFrameNumber = capture.get(CAP_PROP_FRAME_COUNT);
ui->VideohorizontalSlider_2->setMaximum(totalFrameNumber);
long frame=capture.get(CAP_PROP_POS_FRAMES );
ui->VideohorizontalSlider_2->setValue(frame);
}

//进度条拖动
void MainWindow::on_VideohorizontalSlider_2_valueChanged(int value)
{
capture.set(CAP_PROP_POS_FRAMES, value);
}

//秒转分函数
QString MainWindow::stom(int s){
QString m;
if(s/60==0){
m=QString::number (s%60);
}else{
m=QString::number (s/60)+":"+QString::number (s%60);
}
return m;
}

``````

3.timer触发函数

label_12->setText(stom(nows)+"/"+stom(totals)); if (!capture.read(frame)) { //ui->textEdit->append(QString::fromLocal8Bit("fail to load video")); return; } if(type==1){ //image=gray2(image); cvtColor(frame,frame,CV_BGR2GRAY); } else if(type==2){ cvtColor(frame, frame, CV_BGR2GRAY); //高斯滤波 GaussianBlur(frame, frame, Size(3, 3), 0, 0, BORDER_DEFAULT); //Canny检测 int edgeThresh =100; Mat Canny_result; Canny(frame, frame, edgeThresh, edgeThresh * 3, 3); }else if(type==3) { //Smooth(frame, frame,Size(3, 3), 0, 0); GaussianBlur(frame, frame, Size(3, 3), 0, 0); } else if(type==4){ cvtColor(frame,frame,CV_BGR2GRAY); threshold(frame, frame, 96, 255, THRESH_BINARY); }else if (type==5) { frame=masaike(frame); } QImage image=MatToQImage(frame); //ui->label_11->setScaledContents(true); double scale=ui->horizontalSlider_suofang->value()/100.0; QSize qs = ui->label_11->rect().size()*scale; ui->label_11->setPixmap(QPixmap::fromImage(image).scaled(qs)); ui->label_11->setAlignment(Qt::AlignCenter); ui->label_11->repaint(); //这里加滤波程序 //long totalFrameNumber = capture.get(CAP_PROP_POS_FRAMES); // ui->textEdit->append(QString::fromLocal8Bit("正在读取第：第 %1 帧").arg(totalFrameNumber)); } ">
``````//timer触发函数
void MainWindow::onTimeout()
{
Mat frame;
//读取下一帧
double rate = capture.get(CAP_PROP_FPS);
double nowframe=capture.get(CAP_PROP_POS_FRAMES );
int nows=nowframe/rate;
cout<<"nows:"<label_12->setText(stom(nows)+"/"+stom(totals));

if (!capture.read(frame))
{
//ui->textEdit->append(QString::fromLocal8Bit("fail to load video"));
return;
}

if(type==1){
//image=gray2(image);
cvtColor(frame,frame,CV_BGR2GRAY);
}
else if(type==2){
cvtColor(frame, frame, CV_BGR2GRAY);
//高斯滤波
GaussianBlur(frame, frame, Size(3, 3),
0, 0, BORDER_DEFAULT);
//Canny检测
int edgeThresh =100;
Mat Canny_result;
Canny(frame, frame, edgeThresh, edgeThresh * 3, 3);
}else if(type==3)
{
//Smooth(frame, frame,Size(3, 3), 0, 0);
GaussianBlur(frame, frame, Size(3, 3), 0, 0);
}
else if(type==4){
cvtColor(frame,frame,CV_BGR2GRAY);
threshold(frame, frame, 96, 255, THRESH_BINARY);
}else if (type==5) {
frame=masaike(frame);
}

QImage image=MatToQImage(frame);

//ui->label_11->setScaledContents(true);
double scale=ui->horizontalSlider_suofang->value()/100.0;

QSize qs = ui->label_11->rect().size()*scale;
ui->label_11->setPixmap(QPixmap::fromImage(image).scaled(qs));
ui->label_11->setAlignment(Qt::AlignCenter);
ui->label_11->repaint();
//这里加滤波程序

//long totalFrameNumber = capture.get(CAP_PROP_POS_FRAMES);

// ui->textEdit->append(QString::fromLocal8Bit("正在读取第：第 %1 帧").arg(totalFrameNumber));
}

``````

4.Mat转图像函数

``````//Mat转图像
QImage MainWindow::MatToQImage(const cv::Mat& mat)
{
// 8-bits unsigned, NO. OF CHANNELS = 1
if (mat.type() == CV_8UC1)
{
QImage image(mat.cols, mat.rows, QImage::Format_Indexed8);
// Set the color table (used to translate colour indexes to qRgb values)
image.setColorCount(256);
for (int i = 0; i < 256; i++)
{
image.setColor(i, qRgb(i, i, i));
}
// Copy input Mat
uchar *pSrc = mat.data;
for (int row = 0; row < mat.rows; row++)
{
uchar *pDest = image.scanLine(row);
memcpy(pDest, pSrc, mat.cols);
pSrc += mat.step;
}
return image;
}
// 8-bits unsigned, NO. OF CHANNELS = 3
else if (mat.type() == CV_8UC3)
{
// Copy input Mat
const uchar *pSrc = (const uchar*)mat.data;
// Create QImage with same dimensions as input Mat
QImage image(pSrc, mat.cols, mat.rows, mat.step, QImage::Format_RGB888);
return image.rgbSwapped();
}
else if (mat.type() == CV_8UC4)
{
// Copy input Mat
const uchar *pSrc = (const uchar*)mat.data;
// Create QImage with same dimensions as input Mat
QImage image(pSrc, mat.cols, mat.rows, mat.step, QImage::Format_ARGB32);
return image.copy();
}
else
{
return QImage();
}
}

``````

5.暂停/播放

pushButton_6->setStyleSheet("border-radius:32px;" "background-image: url(:/myImage/images/stop.png);border:none;") ; } } ">
``````//暂停/播放
void MainWindow::on_pushButton_6_clicked()
{
if(isstart)
{
timer.stop();
isstart=false;
ui->pushButton_6->setStyleSheet("border-radius:32px;"
"background-image: url(:/myImage/images/start.png);border:none;") ;
}else {
timer.start(delay);
isstart=true;
ui->pushButton_6->setStyleSheet("border-radius:32px;"
"background-image: url(:/myImage/images/stop.png);border:none;") ;
}
}

``````

6.各种功能按钮

``````//灰度
void MainWindow::on_pushButton_7_clicked()
{
type=1;
}

void MainWindow::on_pushButton_8_clicked()
{
type=0;
}

//均值滤波
void MainWindow::on_pushButton_9_clicked()
{
type=2;
}

//平滑
void MainWindow::on_pushButton_10_clicked()
{
type=3;
}

//二值化
void MainWindow::on_pushButton_11_clicked()
{
type=4;
}

//局部马赛克
void MainWindow::on_pushButton_2_clicked()
{
type=5;
}

//缩放
void MainWindow::on_horizontalSlider_suofang_valueChanged(int value)
{

ui->label_suofangvalue->setText(QString::number(value/100.0));
cout<(k, m)[0] = src.at(i, j)[0];
src.at(k, m)[1] = src.at(i, j)[1];
src.at(k, m)[2] = src.at(i, j)[2];
}
}
}
}
return src;
}
``````