tesseract安裝及問題處理

錯誤1

pytesseract.pytesseract.TesseractNotFoundError: tesseract is not installed or it's not in your path

解決方法

‘Tesseract-OCR’ 下載安裝，選擇對應的版本下載
我這里下載的是 window 版本的 tesseract

找到源碼中

tesseract_cmd = 'tesseract'

修改為

tesseract_cmd = r'D:\Program Files (x86)\Tesseract-OCR\tesseract.exe'

錯誤2

E:\BuildFolder\tesseract-ocr\testing>tesseract-dlld.exe eurotext.tif eurotext
Error opening data file ./tessdata/eng.traineddata
Please make sure the TESSDATA_PREFIX environment variable is set to the parent directory of your "tessdata" directory.
Failed loading language 'eng'
Tesseract couldn't load any languages!
Could not initialize tesseract.

解決方法

• 把 tessdata 目錄放在 tesseract.exe 的目錄下

• 將 TESSDATA_PREFIX=D:\Program Files (x86)\Tesseract-OCR 添加環境變量

  臨時在 cmd 中設置環境變量，測試

set TESSDATA_PREFIX=D:\Program Files (x86)\Tesseract-OCR