docs: public static void transformSq(final GrayF32 input , final GrayF64 transformed )
  	{
  		int indexSrc = input.startIndex;
  		int indexDst = transformed.startIndex;
  		int end = indexSrc + input.width;
  
  		double total = 0;
  		for( ; indexSrc < end; indexSrc++ ) {
  			float value = input.data[indexSrc];
  			transformed.data[indexDst++] = total += value*value;
  		}
  
  		for( int y = 1; y < input.height; y++ ) {
  			indexSrc = input.startIndex + input.stride*y;
  			indexDst = transformed.startIndex + transformed.stride*y;
  			int indexPrev = indexDst - transformed.stride;
  
  			end = indexSrc + input.width;
  
  			total = 0;
  			for( ; indexSrc < end; indexSrc++ ) {
  				float value = input.data[indexSrc];
  				total +=  value*value;
  				transformed.data[indexDst++] = transformed.data[indexPrev++] + total;
  			}
  		}
  	}