e677. 模糊化图像

This example demonstrates a 3x3 kernel that blurs an image.

    Kernel kernel = new Kernel(3, 3,
        new float[] {
            1f/9f, 1f/9f, 1f/9f,
            1f/9f, 1f/9f, 1f/9f,
            1f/9f, 1f/9f, 1f/9f});
    BufferedImageOp op = new ConvolveOp(kernel);
    bufferedImage = op.filter(bufferedImage, null);