C++ (Cpp) convert_jpeg_to_imageの例

コード例 #1

ファイル: denoise.c プロジェクト: UiO-INF3331/student-resources-14

int main(int argc, char *argv[])
{
    int m, n, c, iters;
    float kappa;
    image u, u_bar;
    unsigned char *image_chars;
    char *input_jpeg_filename, *output_jpeg_filename;

    /* read from command line: kappa, iters, input_jpeg_filename, output_jpeg_filename */
    kappa = atof(argv[1]);
    iters = atoi(argv[2]);
    input_jpeg_filename = argv[3];
    output_jpeg_filename = argv[4];

    import_JPEG_file(input_jpeg_filename, &image_chars, &m, &n, &c);

    allocate_image (&u, m, n);
    allocate_image (&u_bar, m, n);

    convert_jpeg_to_image (image_chars, &u);
    iso_diffusion_denoising (&u, &u_bar, kappa, iters);
    convert_image_to_jpeg (&u, image_chars);

    export_JPEG_file(output_jpeg_filename, image_chars, m, n, c, 75);

    deallocate_image (&u);
    deallocate_image (&u_bar);

    return 0;
}

コード例 #2

ファイル: serial_main.c プロジェクト: bsamseth/inf3380

int main(int argc, char *argv[])
{
  int m, n, c, iters;
  float kappa;
  Image u, u_bar;
  unsigned char *image_chars;
  char *input_jpeg_filename, *output_jpeg_filename;


  /* read from command line: kappa, iters, input_jpeg_filename, output_jpeg_filename */
  if (argc > 4) {
    iters = atoi(argv[1]);
    kappa = atof(argv[2]);
    input_jpeg_filename = argv[3];
    output_jpeg_filename = argv[4];
  }
  else {
    printf("Usage: %s iters kappa input_file output_file\n", argv[0]);
    exit(1);
  }


  clock_t begin;
  double total_time;
  begin = clock();
  
  /* ... */
  import_JPEG_file(input_jpeg_filename, &image_chars, &m, &n, &c);

  allocate_image (&u, m, n);
  allocate_image (&u_bar, m, n);

  convert_jpeg_to_image (image_chars, &u);

  printf("Performing %d isotropic diffusions ...\n", iters);
  iso_diffusion_denoising (&u, &u_bar, kappa, iters);

  convert_image_to_jpeg (&u_bar, image_chars);

  deallocate_image (&u);
  deallocate_image (&u_bar);

  export_JPEG_file(output_jpeg_filename, image_chars, m, n, c, 75);

  total_time = (double) (clock() - begin) / CLOCKS_PER_SEC;
  printf("Total execution time: %g\n", total_time);
  
  return 0;
}