OpenCV系列学习笔记（二十五）数字验证码识别20210218

Open CV系列学习笔记&＃xff08;二十五&＃xff09;数字验证码识别

 OpenCV&＃43;Tesserct-OCR

 OpenCV预处理

 Tesserct-OCR验证码识别

Tesserct-OCR去 http://pythonware.com/products/pil/

https://pypi.python.org/pypi/pytesseract去年装必须的API

代码&＃xff1a;

import cv2 as cv
import numpy as np
from PIL import Image
import tesseract as tessdef recognize_text():gray &＃61; cv.cvtColor(src,cv.COLOR_BGR2GRAY)ret,binary &＃61; cv.threshold(gray,0,255,cv.THRESH_BINARY_INV | cv.THRESH_OTSU)kernel &＃61; cv.getStructuringElement(cv.MORPH_RECT,(1,2))bin1 &＃61; cv.morphologyEx(binary,cv.MORPH_OPEN,kernel)kernel &＃61; cv.getStructuringElement(cv.MORPH_RECT, (2, 1))open_out &＃61; cv.morphologyEx(bin1, cv.MORPH_OPEN, kernel)cv.imshow("binary",open_out)cv.bitwise_not(open_out,open_out)textImage &＃61; Image.fromarray(open_out)text &＃61; tess.image_to_string(textImage)print("识别结果&＃xff1a;%s"%text)print("--------HEllow Python-------")
src &＃61; cv.imread("E:/picture/43.jpg")
cv.namedWindow("input image",cv.WINDOW_AUTOSIZE)
cv.imshow("input image",src)
recognize_text()
cv.waitKey(0)cv.destroyAllWindows()


结果&＃xff1a;

完结。