2014-03-02 73 views
4

爲什麼返回此錯誤?tesseract(v3.03)輸出爲PDF

[email protected] ~/ocr_test # tesseract -l dan pdf.png out pdf 
Tesseract Open Source OCR Engine v3.03 with Leptonica 
Error opening data file /usr/local/share/tessdata/osd.traineddata 
Please make sure the TESSDATA_PREFIX environment variable is set to the parent directory of your "tessdata" directory. 
Failed loading language 'osd' 
Tesseract couldn't load any languages! 
Warning: Auto orientation and script detection requested, but osd language failed to load 

語言列表

[email protected] ~/ocr_test # tesseract --list-langs 
List of available languages (3): 
eng 
dan 
dan-frak 

輸出爲txt

這工作得很好,並輸出文本out.txt

tesseract -l dan pdf.png out 

輸出PDF

這將創建out.pdf也retuns提到的錯誤,並在PDF中搜索文本沒有意義

tesseract -l dan pdf.png out pdf 

回答