Need help in OCR for Android/Java

[Sadaqatullah Noonari]

I am totally new to image processing and am developing an application for android that aims to read Barcode, QR code and Text from the camera. Is there any other set of steps other than this which I can follow to make the application?
And what formats do OpenCV and/or tesseract accept and how do I read them in java?

[Ulf Dittmer]

I, too, am unaware of a device-based OCR solution for Android, so one of the cloud-based ones may be your only choice.

And what formats do OpenCV and/or tesseract accept and how do I read them in java?

I'm not sure what you're asking - they work with images. The camera hands you an image as a byte array, which you can convert to a BitMap. From there on it should be relatively easy to create an image in whichever format you need for further processing.