tutorial-image-manipulation.cpp

#include <visp/vpImage.h>

int main()
{
  vpImage<unsigned char> gray_image(240, 320);
  vpImage<vpRGBa> color_image(240, 320);

  gray_image = 128;
  vpRGBa color(255, 0, 0);
  color_image = color;

  unsigned int igray_max = gray_image.getHeight() - 1;
  unsigned int jgray_max = gray_image.getWidth() - 1;
  std::cout << "Gray  image, last pixel intensity: "
            <<  (int)gray_image[igray_max][jgray_max] << std::endl;

  unsigned int icolor_max = color_image.getHeight() - 1;
  unsigned int jcolor_max = color_image.getWidth() - 1;
  std::cout << "Color image, last pixel RGB components: "
            << (int)color_image[icolor_max][jcolor_max].R << " "
            << (int)color_image[icolor_max][jcolor_max].G << " "
            << (int)color_image[icolor_max][jcolor_max].B
            << std::endl;
}