/*	fuzzy_rule.c
**	this program classify the two dimension
**      floating (normalised from 0 to 1) image file
**      using fuzzy rules.
**      The training file and test file can be generated by using
**      the fuzzy_train_test.c program.
**      COPYRIGHT: Brandt Tso
*/

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

#define num_of_clas 2

void main(void)
{
  FILE 		*fin1,*fin2, *fout;
  double s1,s2,u1,u2, ai[10],beta[10],beta_avg,beta_all,**w;
  double temp[10], max;
  double alpha[10],alpha_max[10];
  unsigned int img_length,**c;
  unsigned int img_width, k,win;
  unsigned int num_of_train, total_pat,clas[10];
  unsigned int count1, count2, count3, i, j;
  unsigned char *store, in_file[50], a[15],b[15],e[15],d[15];


      printf("Please input image row:");
	  scanf("%d",&img_length);
	  printf("Please input image column:");
      scanf("%d",&img_width);
      printf("Please input the total number of training patterns:");
      scanf("%d",&num_of_train);
	  printf("Please input the maximal number of partitions over each anxi:");
      scanf("%d",&k);
      store = (unsigned char *)calloc(24,sizeof(unsigned char));

      c = (unsigned int **)calloc(2*k,sizeof(unsigned int *));
      w = (double **)calloc(2*k,sizeof(double *));


	  for(i=0;i<=2*k;i++)
		{
        c[i] = (unsigned int *)calloc(2*k,sizeof(unsigned int));
        w[i] = (double *)calloc(2*k,sizeof(double));
		}



	printf("Please input training file name (in floating points format):");
		scanf("%s",in_file);
      if((fin1 = fopen(in_file,"r")) == NULL)/*for training*/
		{
	  fprintf(stderr,"Failed to open %s\n",in_file);
	  exit(EXIT_FAILURE);
		}
	  	printf("Please input file name to be classified(in floating points format):");
		scanf("%s",in_file);
      if((fin2 = fopen(in_file,"r")) == NULL)/*for clasification*/
		{
	  fprintf(stderr,"Failed to open %s\n",in_file);
	  exit(EXIT_FAILURE);
		}

	  printf("Output classified image file name:");
	  scanf("%s",in_file);
      if((fout = fopen(in_file,"wb")) == NULL)/*output clasified image*/
       {
         fprintf(stderr,"Failed to open %s\n",in_file);
         exit(EXIT_FAILURE);
       }


	  printf("\nStart training process!\n");
      for(i=1; i<=k; i++)
      for(j=1; j<=k; j++)
	{
        beta[1] = 0; beta[2]=0;/*set initial value for beta x*/
        ai[1]=(double) (i-1)/(k-1);
        ai[2]=(double) (j-1)/(k-1);
        fseek(fin1,0,0);
        for(count1=0; count1 < num_of_train; count1++)
	 {
          fscanf(fin1,"%s %s %s %s",a,b,e,d);
          fscanf(fin1,"%lf %lf",&s1,&s2); /*printf(" %f %f ",s1, s2); */
          fscanf(fin1,"%s %s %s %s",a,b,e,d);
          fscanf(fin1,"%d %d",&clas[1],&clas[2]);/*printf(" %d %d \n",clas[1], clas[2]);*/
          temp[1]=s1-ai[1];
          temp[2]=s2-ai[2];
          for(count3=1; count3 <=num_of_clas; count3++)
	    {
            if(temp[count3] < 0) temp[count3] = -temp[count3];
	    }
          u1=(double) 1-(temp[1]*(k-1));
          if(u1 < 0) u1 = 0;

          u2=(double) 1-(temp[2]*(k-1));
          if(u2 < 0) u2 = 0;
          if(clas[1] != 0)
          beta[1] = beta[1] + u1*u2;
          else
          beta[2] = beta[2] + u1*u2;/*END procedure 1*/
	 }

            /*    printf("beta %lf %lf\n",beta[1],beta[2]);*/
        max=0;
        for(count1=1; count1 <= num_of_clas; count1++)
	  {
           if(beta[count1]>max)
	     {
               max = beta[count1];
               win=count1;
	     }
          }                         /*END procedure 2*/

        c[i][j]=win;
        beta_avg = 0;
        beta_all = 0;
        for(count1=1; count1 <= num_of_clas; count1++)
	  {
           if(count1 != win)
           beta_avg = beta_avg + beta[count1];

           beta_all = beta_all + beta[count1];
          }
        beta_avg = (double) beta_avg/(num_of_clas-1);


        if(beta_all == 0)
          w[i][j]=0;
        else
          w[i][j]=(double) (beta[win]-beta_avg)/beta_all;
          /*printf("%d %lf \n",c[i][j],w[i][j]);*/
	}                           /*END procedure 3*/


	  printf("Training is completed! Start Classification!\n");
      total_pat = img_length*img_width;
      for(count1=0; count1 < total_pat; count1++)/*start clasification*/
	{
        fscanf(fin2,"%s %s %s %s",a,b,e,d);
        fscanf(fin2,"%lf %lf",&s1,&s2);
        alpha_max[1]=0; alpha_max[2]=0;
        for(count2=1; count2<=num_of_clas; count2++)
	  {
          for(i=1; i<=k; i++)
          for(j=1; j<=k; j++)
	    {
            ai[1]=(double) (i-1)/(k-1);
            ai[2]=(double) (j-1)/(k-1);
            temp[1]=s1-ai[1];
            temp[2]=s2-ai[2];
            for(count3=1; count3 <=num_of_clas; count3++)
	     {
              if(temp[count3] < 0) temp[count3] = -temp[count3];
	     }

            u1=(double) 1-(temp[1]*(k-1));
            if(u1 < 0) u1 = 0;

            u2=(double) 1-(temp[2]*(k-1));
            if(u2 < 0) u2 = 0;

            if(c[i][j] == count2)
	      {
	      alpha[count2]=u1*u2*w[i][j];
              if (alpha[count2] > alpha_max[count2])
                  alpha_max[count2]=alpha[count2];
	      }
	    }/*End of i,j*/
	  }
         max=0;
         for(count2=1; count2<=num_of_clas; count2++)
	   {
            if(alpha_max[count2]>max)
              {
               max = alpha_max[count2];
               win = count2;
	      }
	   }

          if(alpha_max[win] != 0)
            fprintf(fout,"%c",win);
          else
	    {
             win=0;
             fprintf(fout,"%c",win);
	    }


	}/*end of total pattern clasification*/


	  printf("********************Done******************\n");
      fclose(fin1);
      fclose(fin2);
      fclose(fout);
	/*  for(i=0;i<=2*k;i++)
	  {
		  free(c[i]);
		  free(w[i]);
	  }
	  free(c);
	  free(w);*/
      free(store);

}