使用“argv”传递图像文件C ++ [英] Using "argv" to pass image files C++

问题描述

大家好。我目前正在测试图像分割程序，需要以某种方式在主程序中传递测试图像文件，如下所示。一直在寻找。我将非常感谢如何使用或替换argv与测试图像文件，从而生成输出文件。非常感谢您的指导！



http://cs.brown .edu / ~pff / segment / [ ^ ]

  int  main（ int  argc， char  ** argv）{
  if （ argc！=  6 ）{
 fprintf（stderr， 用法：％s sigma k min输入（ppm）输出（ppm）\ n，argv [ 0 ]）; 
  return   1 ; 
} 
 
  float  sigma = atof（argv [ 1 ] ）; 
  float  k = atof（argv [ 2 ]）; 
  int  min_size = atoi（argv [ 3 ]）; 
 
 printf（  loading input image.\ n）; 
 image< rgb> * input = loadPPM（argv [ 4 ]）; 
 
 printf（  processing\\\
）; 
  int  num_ccs; 
 image< rgb> * seg = segment_image（input，sigma，k，min_size，& num_ccs）; 
 savePPM（seg，argv [ 5 ]）; 
 
 printf（ 得到％d components \ n，num_ccs） ; 
 printf（  done！uff ... thats hard work.\） ; 
 
  return   0 ; 
} 

解决方案

你必须用一个函数替换你的内部主代码，所以它看起来像这样：

  int  main（ int  argc， char  ** argv）{
 myTestableFunction（argc，argv）; 
 
  return   0 ; 
} 

以及您可以在测试代码中使用的myTestableFunction函数。它应该像这样工作

  void  theTest 
 {
  int  n =  6 ; 
  char  args [] [] = { ， ， ， ，  ， };  //  一些有用的值 
  //   run test  
 myTestableFunction（n，args）; 
  //  检查结果...  
} 

Hello to you all. I am currently testing a program of image segmentation and need to somehow pass a test image file in the main program as shown below. Been searching for a while. I would appreciate an example of how to use or replace the "argv" with the test image file and consequently produce an output file. Much appreciate your guidance!

http://cs.brown.edu/~pff/segment/[^]

int main(int argc, char **argv) {
  if (argc != 6) {
    fprintf(stderr, "usage: %s sigma k min input(ppm) output(ppm)\n", argv[0]);
    return 1;
  }
  
  float sigma = atof(argv[1]);
  float k = atof(argv[2]);
  int min_size = atoi(argv[3]);
	
  printf("loading input image.\n");
  image<rgb> *input = loadPPM(argv[4]);
	
  printf("processing\n");
  int num_ccs; 
  image<rgb> *seg = segment_image(input, sigma, k, min_size, &num_ccs); 
  savePPM(seg, argv[5]);

  printf("got %d components\n", num_ccs);
  printf("done! uff...thats hard work.\n");

  return 0;
}

解决方案

you must replace your inner main code with a function, so it looks like this:

int main(int argc, char **argv) {
  myTestableFunction( argc, argv);

return 0;
}

and the myTestableFunction function you can use in your testcode. It should work like this

void theTest
{
  int n = 6;
  char args[][] = {"","","","","",""};//some useful values
  //run test
   myTestableFunction(n, args);
  //check results  ...
}

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