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I want to make an offline iPhone application that can grab text from a picture. Can anyone suggest the best library which I can use. I heard ZBAR and ZXING can be used only for barcode reading. Is there any other OCR Libraries for iOS to read text from images. I expect your valuable suggestions as soon as possible.
Thanks in Advance..!
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Up until now, you've needed to download a third-party app to get this functionality on iPhone and iPad. But with iOS 15 (iPadOS 15 too), Apple is including optical character recognition (OCR) as a seamless option in the Camera app as well as for photos and screenshots you've already taken in the Photos app.
It includes a powerful OCR feature built-in that enables you to extract and copy text from images scanned using the app. Here's our detailed guide that explains how to extract and copy text from an image on iPhone and iPad using Scanner Pro and its powerful iPhone OCR feature.
Once an image file added to the scanner app, tap the Menu button (three dots) at the top right corner, you will see a pop-up menu at the screen bottom like this. Select Recognize Text (OCR) to perform OCR, then this scanner app for iPhone will convert image to text or extract text from the image instantly.
Currenlty offline OCR is possible only with Tesseract
You can get source code here
Here is the good tutorial about how to use Tesseract
Also you can perform OCR on multiple language. You can dowlnoad other language trained data here
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