自适应中值滤波有代码吗

当然，以下是自适应中值滤波的 Python 代码示例：

import cv2
import numpy as np


def adaptive_median_filter(img, max_window_size):
    """自适应中值滤波"""
    height, width = img.shape
    result = np.zeros((height, width), dtype=np.uint8)
    img_pad = cv2.copyMakeBorder(img, 1, 1, 1, 1, cv2.BORDER_DEFAULT)
    for i in range(1, height + 1):
        for j in range(1, width + 1):
            window_size = 3
            while window_size <= max_window_size:
                window = img_pad[i - 1:i + 2, j - 1:j + 2]
                z_min, z_max, z_med = np.min(window), np.max(window), np.median(window)
                if z_min < z_med < z_max:
                    if z_min < img_pad[i, j] < z_max:
                        result[i - 1, j - 1] = img_pad[i, j]
                    else:
                        result[i - 1, j - 1] = z_med
                    break
                else:
                    window_size += 2
                    if window_size > max_window_size:
                        result[i - 1, j - 1] = z_med
                        break
    return result

其中，`img` 为待处理的图像，`max_window_size` 为最大窗口尺寸，可以根据具体情况调整。函数返回处理后的图像。