Extract the OpenCV install in any directory you want. Copy the path of the directory where you extracted the OpenCV and add it to your System PATH. Restart your computer to allow it to recognize new environment variables. Open the properties of the project in Visual Studio and select VC++ Directories Select Include Directories and … Read more
I have made a small changes its perfectly working void MainWindow::edgeImage() { image =cvLoadImage(FileName.toLocal8Bit().data()); Gray = cvCreateImage(cvSize(image->width,image->height),IPL_DEPTH_8U,1 ); cvCvtColor(image, Gray, CV_RGB2GRAY); canny= cvCreateImage(cvSize(image->width,image->height),IPL_DEPTH_8U,1 ); cvCanny(Gray,canny,50,150,3); QImage imgCanny = QImage((const unsigned char*)canny->imageData,canny->width,canny->height,QImage::Format_Indexed8); imgCanny.setPixel(0,0,qRgb(0,0,0)); ui->label_3->setPixmap(QPixmap::fromImage(imgCanny).scaled(ui->label_3->size())); }
It’s not so clear what you’re asking, but here are some options to get you started: Manual Min-max transform You could min-max transform so they are all in the range of [0,1], and then multiply by 255. Then, all your values are in the range of 0 to 255, proportional to your original array (i.e. … Read more
sample #include <stdio.h> #include <string.h> int main(void){ unsigned char a[64*128]; int i,r,c; for(i=0;i<64*128;i++){ a[i]=i; } //not fill unsigned char (*b)[64][128] = (unsigned char (*)[64][128])a; for(r=0;r<64;++r){ for(c=0;c<128;++c){ printf(“%i,”, (*b)[r][c]); } printf(“\n”); } //FILL unsigned char b2[64][128]; memcpy(b2, a, sizeof(b2)); printf(“\nFill ver\n”); for(r=0;r<2;++r){ for(c=0;c<16;++c){ printf(“%i,”, b2[r][c]); } printf(“\n”); } return 0; }
I’m using the code from our previous conversation to build a minimal example that shows how to retrieve frames from the camera and display them inside a QLabel. Notice that the value passed to cvCreateCameraCapture() can change on your system. On my Linux 0 is the magic number. On Windows and Mac I use -1. … Read more