How to read pixel color in a java BufferedImage with transparency

I am reading pixel color in a BufferedImage as follows: ``` ..... InputStream is = new BufferedInputStream(conn.getInputStream()); BufferedImage image = ImageIO.read(is); int color = image.getRGB(x, y); int red = (colour & 0x00ff0000) >> 16; int green = (colour & 0x0000ff00) >> 8; int blue = colour & 0x000000ff; ``` Now this works fine except for png's with transparency. I find that if x,y refer to a transparent pixel with no color, i still read a color, generally the same color as used elsewhere in the image. How do I detect that the pixel is actually transparent and not colored? Thanks