ChessBoardUtils.java 文件源码

public static BufferedImage blur(BufferedImage src) {
    BufferedImage bufferedImage = new BufferedImage(src.getWidth(), src.getHeight(), BufferedImage.TYPE_BYTE_INDEXED);

    int s1 = 7;
    int s2 = 7;
    float level = .1f / 9f;

    float[] filter = new float[s1 * s2];

    for (int i = 0; i < s1 * s2; i++) {
        filter[i] = level;
    }

    Kernel kernel = new Kernel(s1, s2, filter);
    BufferedImageOp op = new ConvolveOp(kernel);
    bufferedImage = op.filter(src, null);

    return bufferedImage;
}