public   static   void  resize(InputStream is, String savePath,  int  maxSize)
			 throws  IOException {
		RenderedOp image = JAI.create("stream", SeekableStream.wrapInputStream(
				is, true));

		 if  (image ==  null ) {
			 return ;
		}

		 float  wScale = ( float ) maxSize / ( float ) image.getWidth();
		 float  hScale = ( float ) maxSize / ( float ) image.getHeight();
		// If we want to preserve the aspect ratio, pick the smaller
		// scale.

		 float  scale = Math.min(wScale, hScale);
		// Don't make the image larger than it already is.
		 if  (scale >  1 . 0 ) {
			scale =  1 .0F;
		}
		wScale = scale;
		hScale = scale;

		ParameterBlock pb =  new  ParameterBlock();

		pb.addSource(image); // The source image
		pb.add(wScale); // The xScale
		pb.add(hScale); // The yScale
		pb.add( 0 .0F); // The x translation
		pb.add( 0 .0F); // The y translation
		pb.add( new  javax.media.jai.InterpolationBicubic( 10 )); // The interpolation

		// Create the scaled image.
		PlanarImage resultImage = JAI.create("scale", pb,  null );
		// Write out the image as a PNG.
		ParameterBlock pb1 =  new  ParameterBlock();
		pb1.addSource(resultImage);
		pb1.add(savePath);
		pb1.add("JPEG");
		pb1.add( null );
		pb1.add( new   Boolean (false));

		JAI.create("filestore", pb1);
	}