java如何从大小为800x600的图像中获取平均RGB值

public static int[] getAverageRGB(Image image) {
    int[] rgbArray = new int[3];
    int width = image.getWidth();
    int height = image.getHeight();
    int totalPixels = width * height;
    int totalRed = 0, totalGreen = 0, totalBlue = 0;

    for (int i = 0; i < width; i++) {
        for (int j = 0; j < height; j++) {
            int rgb = image.getRGB(i, j);
            int r = (rgb >> 16) & 0xFF;
            int g = (rgb >> 8) & 0xFF;
            int b = rgb & 0xFF;
            totalRed += r;
            totalGreen += g;
            totalBlue += b;
        }
    }

    int avgRed = totalRed / totalPixels;
    int avgGreen = totalGreen / totalPixels;
    int avgBlue = totalBlue / totalPixels;

    rgbArray[0] = avgRed;
    rgbArray[1] = avgGreen;
    rgbArray[2] = avgBlue;

    return rgbArray;
}