Hello World in C++

From Emgu CV: OpenCV in .NET (C#, VB, C++ and more)
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<font color=green> This project is part of the Emgu.CV.Example solution</font>

System Requirement

Component Requirement Detail
Emgu CV Version 2.0.0.0 Alpha
Operation System Windows Only Mono cannot compile managed C++


Source Code

<source lang=cpp> array<Image<Bgr^, Byte>^>^ ImageProcessor::ProcessImage() {

   //---- plain old Open CV code ----

IplImage* img1 = cvCreateImage(cvSize(300, 200), IPL_DEPTH_8U, 3); cvSet(img1, cvScalar(255, 255, 255)); CvFont font; cvInitFont(&font, CV_FONT_HERSHEY_SIMPLEX, 1.0, 1.0); cvPutText(img1, "Hello, World", cvPoint(50, 100), &font, cvScalar(0.0, 0.0, 0.0)); //---- end of plain old OpenCV code

//create the managed Emgu::CV::Image array array<Image<Bgr^, Byte>^>^ imageArray = gcnew array<Image<Bgr^, Byte>^>(2);

//---- Copying image from IplImage to Emgu::CV::Image class //create a managed Image of the same size, this image will be displayed on the LHS of the GUI imageArray[0] = gcnew Image<Bgr^, Byte>(img1->width, img1->height); //copy the image from unmanaged IplImage to the managed image cvCopy(img1, imageArray[0]->Ptr.ToPointer()); //---- End of image copying

//---- Release the Unmanaged IplImage ---- cvReleaseImage(&img1);

//---- Image Processing in EmguCV using .Net Syntax //another image to be displayed on the RHS of the GUI imageArray[1] = gcnew Image<Bgr^, Byte>(imageArray[0]->Width, imageArray[0]->Height); //fill the image with random colors of mean 50 and standard deviation of 10; imageArray[1]->SetRandNormal(MCvScalar(50.0, 50.0, 50.0), MCvScalar(10.0, 10.0, 10.0)); imageArray[1] = imageArray[0] - imageArray[1]; //add the noise to the image //---- End of Image Processing in Emgu CV.

return imageArray; } </source>

Result

Result of C++ Example