python代碼：

 

import cv2 as cv import numpy as npdef method_1(image):gray = cv.cvtColor(image, cv.COLOR_BGR2GRAY)t, binary = cv.threshold(gray, 0, 255, cv.THRESH_BINARY | cv.THRESH_OTSU)return binarydef method_2(image):blurred = cv.GaussianBlur(image, (3, 3), 0)gray = cv.cvtColor(blurred, cv.COLOR_BGR2GRAY)t, binary = cv.threshold(gray, 0, 255, cv.THRESH_BINARY | cv.THRESH_OTSU)return binarydef method_3(image):blurred = cv.pyrMeanShiftFiltering(image, 10, 100)gray = cv.cvtColor(blurred, cv.COLOR_BGR2GRAY)t, binary = cv.threshold(gray, 0, 255, cv.THRESH_BINARY | cv.THRESH_OTSU)return binarysrc = cv.imread("./test.png") h, w = src.shape[:2] ret = method_3(src)result = np.zeros([h, w*2, 3], dtype=src.dtype) result[0:h,0:w,:] = src result[0:h,w:2*w,:] = cv.cvtColor(ret, cv.COLOR_GRAY2BGR) cv.putText(result, "input",

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