Python 图片二值化处理
1 import cv2 2 import numpy as np 3 4 5 # OpenCV进行二值化图片处理 6 def open_cv_deal_image(): 7 # 读取图像 8 image = cv2.imread('image/output.jpg') 9 # 灰度化 10 gray_image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) 11 # 二值化 12 _, binary_image = cv2.threshold(gray_image, 127, 255, cv2.THRESH_BINARY) 13 # 去噪 14 done_image = cv2.fastNlMeansDenoising(binary_image, None, 10, 7, 21) 15 # 锐化 16 kernel = np.array([[0, -1, 0], [-1, 5, -1], [0, -1, 0]]) 17 share_image = cv2.filter2D(done_image, -1, kernel) 18 # 保存图片 19 cv2.imwrite('image/xxx.jpg', share_image) 20 print("~~~~~~~~~~>>>>>图片处理完成<<<<<~~~~~~~~~~") 21 22 23 if __name__ == '__main__': 24 open_cv_deal_image()