PROSES INVERT CITRA MENGGUNAKAN OPENCV

Citra awal

 Citra hasil invert

Nah, pada program OpenCV kali ini, kita akan melakukan proses invert citra. Istilahnya citra awal kita ubah menjadi citra negative. Berikut

adalah source code nya:

void InvertColour( Mat& input_image, Mat& output_image )

{

  CV_Assert( input_image.type() == CV_8UC3 );

  output_image = input_image.clone();

  for (int row=0; row < input_image.rows; row++)

    for (int col=0; col < input_image.cols; col++)

      for (int channel=0; channel < input_image.channels(); channel++)

 output_image.at<Vec3b>(row,col)[channel] = 255 - input_image.at<Vec3b>(row,col)[channel];

}

int main(int argc, char **argv)

{

Mat image = imread("img/test.png", CV_LOAD_IMAGE_COLOR);

namedWindow("display window");

Mat out;

imshow("display window", image);

InvertColour(image, out);

imshow("display window", out);

waitKey(0);// wait for a keystroke in the window

    return 0;

}