Matrix ex2(Image myimage){
  Matrix hist=MatAlloc(Int,1,256);
  unsigned char **myI=ImGetI(myimage);
  int **m=MatGetInt(hist);
  for(int i=0;i<256;i++)
  {m[0][i]=0;}
  for(int i=0; i<ImNbRow(myimage);i++){
    for(int j=0;j<ImNbCol(myimage);j++){
       m[0][myI[i][j]]++;

    }
    for(int i=0;i<256;i++){
      printf("%2d %d \n",i,m[0][i]);
    }
    }
  MatWriteAsc(hist,"chenille-hist.mx");
    ImWrite(Hist2Im(hist,ImNbRow(myimage)),"eiloj.pgm");
  return(hist);
  }