visual-studio-2010 – 在pictureBox中显示cv :: Mat(opencv 2.4.3)(Visual C 2010)

2019年8月4日 422次阅读

我需要使用openFileDialog以Mat格式读取图像并将其显示在pictureBox中(在Visual C / Visual Studio 2010中).

我搜索了很多但找不到答案.

我正在使用此代码：

openFileDialog1->Filter = "JPEG files (*.jpg)|*.jpg|Bitmap files (*.bmp)|*.bmp";
if(openFileDialog1->ShowDialog() == System::Windows::Forms::DialogResult::OK)
{
    Mat img;
    img = imread(openFileDialog1->FileName, CV_LOAD_IMAGE_COLOR);
    pictureBox1->Image = (gcnew Bitmap(img.size().width,
                                            img.size().height,
                                            img.widthStep,
                                            Imaging::PixelFormat::Format24bppRgb,
                                            (IntPtr)img.data));

}

最佳答案 这个问题已经回答了
here：

根据您的要求,您可以这样做：

Mat img;
img = imread(openFileDialog1->FileName, CV_LOAD_IMAGE_COLOR);

System::Drawing::Graphics^ graphics = pictureBox1->CreateGraphics();
System::IntPtr ptr(img.ptr());
System::Drawing::Bitmap^ b  = gcnew System::Drawing::Bitmap(img.cols,img.rows,img.step,System::Drawing::Imaging::PixelFormat::Format24bppRgb,ptr);
System::Drawing::RectangleF rect(0,0,pictureBox1->Width,pictureBox1->Height);
graphics->DrawImage(b,rect);
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