[英]Remove noise from threshold TEXT images in opencv
您可以在 Python/OpenCV 中對原始圖像使用自適應閾值
輸入:
import cv2
import numpy as np
# read image
img = cv2.imread("writing.jpg")
# convert img to grayscale
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
# do adaptive threshold on gray image
thresh = cv2.adaptiveThreshold(gray, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY, 21, 10)
# write results to disk
cv2.imwrite("writing_thresh.jpg", thresh)
# display it
cv2.imshow("thresh", thresh)
cv2.waitKey(0)
cv2.destroyAllWindows()
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.