docs: public static int[] selectPyramidScale( int imageWidth , int imageHeight, int minSize ) {
  		int w = Math.max(imageWidth,imageHeight);
  
  		int maxScale = w/minSize;
  		int n = 1;
  		int scale = 1;
  		while( scale*2 < maxScale ) {
  			n++;
  			scale *= 2;
  		}
  
  		int ret[] = new int[n];
  		scale = 1;
  		for( int i = 0; i < n; i++ ) {
  			ret[i] = scale;
  			scale *= 2;
  		}
  
  		return ret;
  	}