[英]Detect text in image using Tesseract
重要的事情是:
考慮到這一點,這是我的代碼:
import cv2
import numpy as np
import pytesseract
pytesseract.pytesseract.tesseract_cmd = r'C:\Program Files\Tesseract-OCR\tesseract'
originalImage = cv2.imread('c.jpg')
grayImage = cv2.cvtColor(originalImage, cv2.COLOR_BGR2GRAY)
(thresh, blackAndWhiteImageOriginal) = cv2.threshold(grayImage, 127, 255, cv2.THRESH_BINARY_INV)
blackAndWhiteImage = cv2.erode(blackAndWhiteImageOriginal, np.ones((5,5), np.uint8))
ocr_output_details = pytesseract.image_to_data(blackAndWhiteImage, output_type=pytesseract.Output.DICT, config="--psm 7 -c tessedit_char_whitelist=H25FThft")
rgbImage = cv2.cvtColor(blackAndWhiteImage,cv2.COLOR_GRAY2RGB)
for i in range(len(ocr_output_details['level'])):
(x, y, w, h) = (ocr_output_details['left'][i], ocr_output_details['top'][i], ocr_output_details['width'][i], ocr_output_details['height'][i])
cv2.rectangle(rgbImage, (x, y), (x + w, y + h), (0,0,255), 2)
print('Text: ', ocr_output_details['text'])
cv2.imshow('Boxes', rgbImage)
cv2.waitKey(0)
cv2.destroyAllWindows()
結果:結果圖像
您也可以嘗試使用 Tesseract 文檔改進結果。 Tesseract - 提高質量 output
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