前提是你已经完成了opencv在QT上的配置操作。
同时还是需要在工程文件.pro中添加相关的库文件信息。如下所示:
INCLUDEPATH +=D:\Opencv\QT_IncludeFile\include\opencv\
D:\Opencv\opencv\build\include\opencv2\
D:\Opencv\QT_IncludeFile\include
LIBS+= D:\Opencv\QT_IncludeFile\lib\libopencv_calib3d247.dll.a\
D:\Opencv\QT_IncludeFile\lib\libopencv_contrib247.dll.a\
D:\Opencv\QT_IncludeFile\lib\libopencv_core247.dll.a\
D:\Opencv\QT_IncludeFile\lib\libopencv_features2d247.dll.a\
D:\Opencv\QT_IncludeFile\lib\libopencv_flann247.dll.a\
D:\Opencv\QT_IncludeFile\lib\libopencv_gpu247.dll.a\
D:\Opencv\QT_IncludeFile\lib\libopencv_highgui247.dll.a\
D:\Opencv\QT_IncludeFile\lib\libopencv_imgproc247.dll.a\
D:\Opencv\QT_IncludeFile\lib\libopencv_legacy247.dll.a\
D:\Opencv\QT_IncludeFile\lib\libopencv_ml247.dll.a\
D:\Opencv\QT_IncludeFile\lib\libopencv_objdetect247.dll.a\
D:\Opencv\QT_IncludeFile\lib\libopencv_video247.dl
方法一:
第一步:首先在头文件中声明一个指针
IplImage *src;
第二步:你可以在UI界面中添加一个button控件,然后右击选择添加槽函数,最后来到按键槽函数,来添加以下信息:
/**************************
思路是:定义一个IplImage的图像指针,先用来打开图像后,把图像
转换为Mat ,通过Mat把图像显示出来
*************************/
void Widget::on_pushButton_2_clicked()
{
src=cvLoadImage("D:/Opencv/srcImage.bmp",0);//图像的路径
cv::Mat image;//定义一个矩阵
image=cv::Mat(src);把图像类型是IplImage 转换为Mat
cv::namedWindow("image");//图像显示窗口的名称
cv::imshow("image",image);//显示图像
}
方法二:
第一步:首先在头文件中声明一个指针
cv::Mat image
第二步:
void Widget::on_pushButton_2_clicked()
{
image=imread("D:/Opencv/srcImage.bmp",0);
IplImage img;
img=IplImage(image);
cvNamedWindow("src1",0);
cvShowImage("src1",&img);
}