第OpenCV+Qt實現(xiàn)圖像處理操作本文實例為大家分享了OpenCV+Qt實現(xiàn)圖像處理操作的具體代碼，供大家參考，具體內(nèi)容如下

Qt界面實現(xiàn)雪花屏高斯模糊中值濾波毛玻璃灰度化XY方向模糊雙邊模糊腐蝕[圖像處理操作]

要求左邊原圖，右邊效果圖

結(jié)果展示如下：[圖像處理實現(xiàn)有點多，就不一個一個地展示了，各別展示如下]

雪花屏

毛玻璃

灰度化處理

二、使用Qt界面

使用到Qt中的UI設(shè)計界面

設(shè)計好界面之后最好先保存

對每一個按鈕設(shè)計槽函數(shù)

三、圖像處理操作完整代碼

難點在于：Qt是QImage而OpenCV是Mat，需要Mat轉(zhuǎn)QImage才能在Qt界面中進(jìn)行圖片的正常顯示

頭文件中導(dǎo)入opencv包

#ifndefWIDGET_H

#defineWIDGET_H

#includeopencv2/opencv.hpp

#includeQWidget

usingnamespacecv;

QT_BEGIN_NAMESPACE

namespaceUi{classWidget;}

QT_END_NAMESPACE

classWidget:publicQWidget

Q_OBJECT

public:

//

Widget(QWidget*parent=nullptr);

explicitWidget(QWidget*parent=0);

~Widget();

privateslots:

voidon_pushButton_clicked();//雪花屏

voidon_pushButton_2_clicked();//高斯模糊

voidon_pushButton_3_clicked();//中值濾波

voidon_pushButton_4_clicked();//毛玻璃

voidon_pushButton_5_clicked();//灰度化

voidon_pushButton_6_clicked();//XY方向模糊

voidon_pushButton_7_clicked();//雙邊模糊

voidon_pushButton_8_clicked();//腐蝕

private:

Ui::Widget*ui;

Matsrcimage;//原圖

#endif//WIDGET_H

源文件中實現(xiàn)圖像處理方法

#include"widget.h"

#include"ui_widget.h"

Widget::Widget(QWidget*parent):

QWidget(parent),

ui(newUi::Widget)

ui-setupUi(this);

Widget::~Widget()

deleteui;

//雪花屏

voidWidget::on_pushButton_clicked()

//讀取原始圖片

Matsrcimage=imread("D:/000imageopencv/efls111.jpg");

//Mat轉(zhuǎn)QImage顏色

cvtColor(srcimage,srcimage,CV_BGR2RGB);

//Mat轉(zhuǎn)QImage像素

oldlabel放置原圖

QImagedisimage=QImage(srcimage.data,srcimage.cols,srcimage.rows,srcimage.cols*srcimage.channels(),QImage::Format_RGB888);

disimage=disimage.scaled(ui-oldlabel-width(),ui-oldlabel-height());

ui-oldlabel-setPixmap(QPixmap::fromImage(disimage));

//像素二維矩陣函數(shù)

introws=srcimage.rows;

//像素二維矩陣列數(shù)

intcols=srcimage.cols*srcimage.channels();

for(inti=0;irows;i++)

{

uchar*data=srcimage.ptruchar

for(intj=0;jcols;j++)

{

//雪花屏特效

intq=rand()%cols;

data[q]=155;//某些通道隨機(jī)改成155

}

}

//Mat轉(zhuǎn)QImage像素

newlabel放置圖像處理后圖片

QImagedisimage2=QImage(srcimage.data,srcimage.cols,srcimage.rows,srcimage.cols*srcimage.channels(),QImage::Format_RGB888);

disimage2=disimage2.scaled(ui-newlabel-width(),ui-newlabel-height());

ui-newlabel-setPixmap(QPixmap::fromImage(disimage2));

//高斯模糊

voidWidget::on_pushButton_2_clicked()

//讀取原始圖片

Matsrcimage=imread("D:/000imageopencv/efls111.jpg");

//Mat轉(zhuǎn)QImage顏色

cvtColor(srcimage,srcimage,CV_BGR2RGB);

//Mat轉(zhuǎn)QImage像素

oldlabel放置原圖

QImagedisimage=QImage(srcimage.data,srcimage.cols,srcimage.rows,srcimage.cols*srcimage.channels(),QImage::Format_RGB888);

Matretimage;

//高斯模糊

GaussianBlur(srcimage,retimage,Size(5,5),0,0);

//Mat轉(zhuǎn)QImage像素

newlabel放置圖像處理后圖片

QImagedisimage2=QImage(retimage.data,retimage.cols,retimage.rows,retimage.cols*retimage.channels(),QImage::Format_RGB888);

disimage2=disimage2.scaled(ui-newlabel-width(),ui-newlabel-height());

ui-newlabel-setPixmap(QPixmap::fromImage(disimage2));

//中值濾波

voidWidget::on_pushButton_3_clicked()

//讀取原始圖片

Matsrcimage=imread("D:/000imageopencv/efls111.jpg");

//Mat轉(zhuǎn)QImage顏色

cvtColor(srcimage,srcimage,CV_BGR2RGB);

//Mat轉(zhuǎn)QImage像素

oldlabel放置原圖

QImagedisimage=QImage(srcimage.data,srcimage.cols,srcimage.rows,srcimage.cols*srcimage.channels(),QImage::Format_RGB888);

disimage=disimage.scaled(ui-oldlabel-width(),ui-oldlabel-height());

ui-oldlabel-setPixmap(QPixmap::fromImage(disimage));

Matretumage;

//中值濾波

medianBlur(srcimage,retumage,5);

//Mat轉(zhuǎn)QImage像素

newlabel放置圖像處理后圖片

QImagedisimage2=QImage(retumage.data,retumage.cols,retumage.rows,retumage.cols*retumage.channels(),QImage::Format_RGB888);

disimage2=disimage2.scaled(ui-newlabel-width(),ui-newlabel-height());

ui-newlabel-setPixmap(QPixmap::fromImage(disimage2));

//毛玻璃

voidWidget::on_pushButton_4_clicked()

//讀取原始圖片

Matsrcimage=imread("D:/000imageopencv/efls111.jpg");

//Mat轉(zhuǎn)QImage顏色

cvtColor(srcimage,srcimage,CV_BGR2RGB);

//Mat轉(zhuǎn)QImage像素

oldlabel放置原圖

QImagedisimage=QImage(srcimage.data,srcimage.cols,srcimage.rows,srcimage.cols*srcimage.channels(),QImage::Format_RGB888);

disimage=disimage.scaled(ui-oldlabel-width(),ui-oldlabel-height());

ui-oldlabel-setPixmap(QPixmap::fromImage(disimage));

//毛玻璃

RNGrng;

intrandom;

intnum=5;

for(inti=0;isrcimage.rows-num;i++)

{

for(intj=0;jsrcimage.cols-num;j++)

{

//通過rng返回0-15隨機(jī)數(shù)

random=rng.uniform(0,num);

srcimage.atVec3b(i,j)[0]=srcimage.atVec3b(i+random,j+random)[0];

srcimage.atVec3b(i,j)[1]=srcimage.atVec3b(i+random,j+random)[1];

srcimage.atVec3b(i,j)[2]=srcimage.atVec3b(i+random,j+random)[2];

}

}

//Mat轉(zhuǎn)QImage像素

newlabel放置圖像處理后圖片

QImagedisimage2=QImage(srcimage.data,srcimage.cols,srcimage.rows,srcimage.cols*srcimage.channels(),QImage::Format_RGB888);

disimage2=disimage2.scaled(ui-newlabel-width(),ui-newlabel-height());

ui-newlabel-setPixmap(QPixmap::fromImage(disimage2));

//灰度化

voidWidget::on_pushButton_5_clicked()

//讀取原始圖片

Matsrcimage=imread("D:/000imageopencv/efls111.jpg");

//Mat轉(zhuǎn)QImage顏色

cvtColor(srcimage,srcimage,CV_BGR2RGB);

//Mat轉(zhuǎn)QImage像素

oldlabel放置原圖

QImagedisimage=QImage(srcimage.data,srcimage.cols,srcimage.rows,srcimage.cols*srcimage.channels(),QImage::Format_RGB888);

disimage=disimage.scaled(ui-oldlabel-width(),ui-oldlabel-height());

ui-oldlabel-setPixmap(QPixmap::fromImage(disimage));

Matretumage;

//灰度處理灰度是單通道8位QImage是24位三通道

cvtColor(srcimage,retumage,CV_BGR2GRAY);

cvtColor(retumage,retumage,CV_GRAY2BGR);

//Mat轉(zhuǎn)QImage像素

newlabel放置圖像處理后圖片

QImagedisimage2=QImage(retumage.data,retumage.cols,retumage.rows,retumage.cols*retumage.channels(),QImage::Format_RGB888);

disimage2=disimage2.scaled(ui-newlabel-width(),ui-newlabel-height());

ui-newlabel-setPixmap(QPixmap::fromImage(disimage2));

//XY方向模糊

voidWidget::on_pushButton_6_clicked()

//讀取原始圖片

Matsrcimage=imread("D:/000imageopencv/efls111.jpg");

//Mat轉(zhuǎn)QImage顏色

cvtColor(srcimage,srcimage,CV_BGR2RGB);

//Mat轉(zhuǎn)QImage像素

oldlabel放置原圖

QImagedisimage=QImage(srcimage.data,srcimage.cols,srcimage.rows,srcimage.cols*srcimage.channels(),QImage::Format_RGB888);

disimage=disimage.scaled(ui-oldlabel-width(),ui-oldlabel-height());

ui-oldlabel-setPixmap(QPixmap::fromImage(disimage));

Matretumage;

//xy軸模糊

blur(srcimage,retumage,Size(10,10));

//Mat轉(zhuǎn)QImage像素

newlabel放置圖像處理后圖片

QImagedisimage2=QImage(retumage.data,retumage.cols,retumage.rows,retumage.cols*retumage.channels(),QImage::Format_RGB888);

disimage2=disimage2.scaled(ui-newlabel-width(),ui-newlabel-height());

ui-newlabel-setPixmap(QPixmap::fromImage(disimage2));

//雙邊模糊

voidWidget::on_pushButton_7_clicked()

//讀取原始圖片

Matsrcimage=imread("D:/000imageopencv/efls111.jpg");

//Mat轉(zhuǎn)QImage顏色

cvtColor(srcimage,srcimage,CV_BGR2RGB);

//Mat轉(zhuǎn)QImage像素

oldlabel放置原圖

QImagedisimage=QImage(srcimage.data,srcimage.cols,srcimage.rows,srcimage.cols*srcimage.channels(),QImage::Format_RGB888);

disimage=disimage.scaled(ui-oldlabel-width(),ui-oldlabel-height());

ui-oldlabel-setPixmap(QPixmap::fromImage(disimage));

Matretumage;

//雙倍模糊

cv::bilateralFilter(srcimage,retumage,15,120,10,4);

//Mat轉(zhuǎn)QImage像素

newlabel放置圖像處理后圖片

QImagedisimage2=QImage(retumage.data,retumage.cols,retumage.rows,retumage.cols*retumage.channels(),QImage::Format_RGB888);

disimage2=disimage2.scaled(ui-newlabel-width(),ui-newlabel-height());

ui-newlabel-setPixmap(QPixmap::fromImage(disimage2));

voidWidget::on_pushButton_8_clicked()

//讀取原始圖片

Matsrcimage=imread("D:/000imageopencv/efls111.jpg");

//Mat轉(zhuǎn)QImage顏色

cvtColor(srcimage,srcimage,CV_BGR2RGB);

//Mat轉(zhuǎn)QImage像素

oldlabel放置原圖

QImage