图像处理均值算法

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计算机图像处理算法-均值算法-Java实现

均值处理算法

  • 算法思想：

    计算待处理像素的周围元素的均值来代替待处理像素

  • 数学表达式：

    image[i][j] = (imgae[i-1][j-1] + image[i][j-1] + image[i+1][j-1] +
    image[i-1][j] + image[i+1][j] +
    image[i-1][j+1] + image[i][j+1] + image[i+1][j+1])/8

  • 代码实现：

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private static int meanfilter(int[][] image) {
        try {
            Scanner sc = new Scanner(System.in);
            System.out.println("请输入图片的m，n:");
            int m = sc.nextInt();
            int n = sc.nextInt();
            image = new int[m][n];
            newImage = new int[m][n];
            for (int i = 0; i < m; i++) {
                for (int j = 0; j < n; j++) {
                    image[i][j] = sc.nextInt();
                }
            }
            System.out.println("原图片的数值为：");
            System.out.println(Arrays.deepToString(image));
            for (int i = 1; i < m - 1; i++) {
                for (int j = 1; j < n - 1; j++) {
                    newImage[i][j] = (image[i - 1][j - 1] + image[i][j - 1] + image[i + 1][j - 1] + image[i - 1][j] + image[i + 1][j] +
                            image[i - 1][j + 1] + image[i][j + 1] + image[i + 1][j + 1]) / 8;
                }
            }
            System.out.println("经过均值滤波后的图片数值为：");
            System.out.println(Arrays.deepToString(newImage));
            return 0;
        } catch (Exception e) {
            e.printStackTrace();
            return -1;
        }
    }