I want to read the meter readings from the given image(http://craigheadelectric.coop/content/automated-meter-reading)

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you could try to adapt the cpp squares sample

AFAIK it is just the C++ interface wrapped in a JNI instruction. So you need two things:

• The JNI instruction guide for OpenCV using a sample -click here-
• The C++ code for finding a rectangle, which could be versatile due to the situation. Can you give more information there so that we can suggest a correct approach? Maybe give a sample image?

So combine both answers and there you got your solution ^_^

StevenPuttemans in my app I just want to take a picture from camera after that i want to apply image processing for cropping the rectangular shape, can you provide any samples ?

@Anilkumar please read the link provided by berak and start testing ... this is not an off the shelf code delivery service ...

crop to what rectangle , please ? could you be a bit more precise, about what you're trying to achieve ?

@berak In my captures image I can have a rectangular shape FYI(http://craigheadelectric.coop/content/automated-meter-reading) now I want to find the rectangular shape so that I can crop the Image upto the meter readings

@StevenPuttemans,@berak I want to read the meter readings from the given image(http://craigheadelectric.coop/content/automated-meter-reading) by using tesseract so that i need to find the rectangular shape from the image then I want to crop the image up to meter readings.

^^ hey, you should have started your question with that info in the 1st place. please have a look at the faq as well

once you found the Rect, cropping is just: Mat cropped = Mat(image,Rect) (or submat in java)