void  ScanLineGrowing(int crow, int ccol,
		      IMAGE8BIT *grayim,
		      IMAGEINT *labelim,
		      float gThresh,
		      int new_label)
{
  int i,j;
  int left, right;
  int nowrow;
  
  /* Check condition */
  if (crow <0 || crow >= labelim->row) return;
  if (ccol <0 || ccol >= labelim->col) return;
  
  if (labelim->image[crow][ccol] !=0 ) return;
  
  left = ccol-1;
  while (left>=0 ) {
    if (fabs((double)(grayim->image[crow][left+1]-
		      grayim->image[crow][left]))>gThresh)
      break;
    left--;
  }

  right = ccol+1;
  while (right < labelim->col) {
    if (fabs((double)(grayim->image[crow][right-1]-
		      grayim->image[crow][right]))>gThresh)
      break;
    right++;
  }
  
  /* Adjust */
  left++; right--;
 
  /* Relabeling current line */
  for (i=left; i<=right; i++) {
    labelim->image[crow][i] = new_label;
  }
  /* Check a line up and down*/
  for (nowrow = crow-1; nowrow <= crow+1; nowrow+=2 ) {
    if (nowrow >=0 && nowrow < labelim->row ) {
      for (i=left; i<=right; i++) {
	for (j=(i-1); j<= (i+1); j++) {
	  if (j>=0 && j < labelim->col) {
	    if (fabs((double)(grayim->image[crow][i]-
			      grayim->image[nowrow][j]))<= gThresh) {
	      ScanLineGrowing(nowrow, j,
			      grayim, labelim,
			      gThresh,
			      new_label);
	    }
	  }
	}
      }
    }
  }
  return;
}