问题
i need an advice on how to approach this problem. I have some picture data: *.jpg, *.bmp ... and i need to extract the data from it. The data is alphanumeric text. I work in delphi.
回答1:
You will have to head for a OCR (Optical Character Recognition) library. This is a pretty complex procedure, I believe you wouldn't be asking this question if you knew any way to implement this by yourself.
A quick Google yielded this result, maybe it's of help for you: http://www.planet-source-code.com/vb/scripts/ShowCode.asp?txtCodeId=1623&lngWId=7
回答2:
Look here:
https://forums.embarcadero.com/message.jspa?messageID=29331
回答3:
Take a look at my answer about NeuroVCL OCR here. There is a lot of useful info and sample Delphi OCR DCU components.
来源：https://stackoverflow.com/questions/4919094/recognizing-text-from-a-picture-in-delphi