椒盐噪声（简单实现）

def noise(image, n=10000):result = image.copy()length, high = result.shape[:2]for i in range(n):# 根据随机值来指定x, y位置x = np.random.randint(1, length)y = np.random.randint(1, high)# 改变x, y位置的值if np.random.randint(2) == 0:  # 取值为0或1result[x, y] = 255else:result[x, y] = 0return resultimage = cv2.imread('图片路径')
cv2.imshow('original', image)
#设置等待
cv2.waitKey(0)result = noise(image)
cv2.imshow('noise', result)
#设置等待
cv2.waitKey(0)
#关闭所有打开的窗口
cv2.destroyAllWindows()