Create square pic about java-image-scaling HOT 2 OPEN

+1 it would be nice to create square with black border if the the original 
image is not a square.

The following code works great for me :

            ResampleOp resampleOp = new ResampleOp( destWidth, destHeight );
            resampleOp.setUnsharpenMask( AdvancedResizeOp.UnsharpenMask.Normal );
            BufferedImage destImage = resampleOp.filter( sourceImage, null );

            ImageIO.write( destImage, "JPG", "rescaled.jpg" );

            //Generate square image
            BufferedImage resImage = ImageIO.read( "rescaled.jpg" );
            BufferedImage resultImage =
                new BufferedImage( imageSize.longSide, imageSize.longSide, BufferedImage.TYPE_INT_RGB );
            Graphics2D resultGraphics = resultImage.createGraphics();
            double translateX = ( imageSize.longSide - destWidth ) / 2;
            double translateY = ( imageSize.longSide - destHeight ) / 2;
            AffineTransform resultAffineTransform = AffineTransform.getTranslateInstance( translateX, translateY );
            resultGraphics.drawRenderedImage( resImage, resultAffineTransform );
            ImageIO.write( resultImage, "PNG", "square.png" );
            resultGraphics.dispose();