Python 图片二值化处理

import cv2
import numpy as np


# OpenCV进行二值化图片处理
def open_cv_deal_image():
    # 读取图像
    image = cv2.imread('image/output.jpg')
    # 灰度化
    gray_image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
    # 二值化
    _, binary_image = cv2.threshold(gray_image, 127, 255, cv2.THRESH_BINARY)
    # 去噪
    done_image = cv2.fastNlMeansDenoising(binary_image, None, 10, 7, 21)
    # 锐化
    kernel = np.array([[0, -1, 0], [-1, 5, -1], [0, -1, 0]])
    share_image = cv2.filter2D(done_image, -1, kernel)
    # 保存图片
    cv2.imwrite('image/xxx.jpg', share_image)
    print("~~~~~~~~~~>>>>>图片处理完成<<<<<~~~~~~~~~~")


if __name__ == '__main__':
    open_cv_deal_image()