学步园

本文博客链接:http://blog.csdn.net/jdh99,作者:jdh,转载请注明.

源代码：

#include "widget.h"<br /> #include "ui_widget.h"<br /> Widget::Widget(QWidget *parent) :<br /> QWidget(parent),<br /> ui(new Ui::Widget)<br /> {<br /> ui->setupUi(this);<br /> cvNamedWindow("jdh1",CV_WINDOW_AUTOSIZE);<br /> cvNamedWindow("jdh2",CV_WINDOW_AUTOSIZE);<br /> img1 = cvLoadImage("test.jpg");<br /> img2 = cvLoadImage("test.jpg");<br /> cvShowImage("jdh1",img1);<br /> cvShowImage("jdh2",img2);<br /> }<br /> Widget::~Widget()<br /> {<br /> delete ui;<br /> cvReleaseImage(&img1);<br /> cvReleaseImage(&img2);<br /> cvDestroyAllWindows();<br /> }<br /> void Widget::on_pushButton_clicked()<br /> {<br /> QString red = ui->lineEdit->text();<br /> QString green = ui->lineEdit_2->text();<br /> QString blue = ui->lineEdit_3->text();<br /> int temp = 0;<br /> for (int y = 0;y < img2->height;y++)<br /> {<br /> unsigned char *ptr = (unsigned char *)(img2->imageData + y * img2->widthStep);<br /> unsigned char *ptr1 = (unsigned char *)(img1->imageData + y * img1->widthStep);<br /> for (int x = 0;x < img2->width;x++)<br /> {<br /> bool ok;<br /> //蓝色设置<br /> temp = blue.toInt(&ok,10);<br /> if (ok)<br /> {<br /> ptr[3 * x + 0] = temp;<br /> }<br /> else<br /> {<br /> ptr[3 * x + 0] = ptr1[3 * x + 0];<br /> }<br /> //绿色设置<br /> temp = green.toInt(&ok,10);<br /> if (ok)<br /> {<br /> ptr[3 * x + 1] = temp;<br /> }<br /> else<br /> {<br /> ptr[3 * x + 1] = ptr1[3 * x + 1];<br /> }<br /> //红色设置<br /> temp = red.toInt(&ok,10);<br /> if (ok)<br /> {<br /> ptr[3 * x + 2] = temp;<br /> }<br /> else<br /> {<br /> ptr[3 * x + 2] = ptr1[3 * x + 2];<br /> }<br /> }<br /> }<br /> cvShowImage("jdh2",img2);<br /> }<br />  

效果：