get the alphabets from the image using java..!

I am looking for some code which can get me the alphabets present in the image. As per m开发者_开发问答y understanding OCR works fine with the plain white background. I am looking for something which gives me the characters or alphabets in some random image background except the alphabets. Can anyone help me out in this regard..?

Thank you.

Some image preprocessing is necessary to remove the background noise before feeding it to the OCR engine. For OCR, I use Tesseract. Here are some Java frontend or library that use it:

VietOCR Tess4J