Android Question IN SEARCH OF OCR that actually works (Please)

[MitchBu]

I am starting to get desperate. I need OCR to scan books.

I tried the project at https://www.b4x.com/android/forum/threads/textrecognitionandroid-ocr.121018/#content but unfortunately, results are not consistent. Sometimes it works, other times nothing happens.

I downloaded this https://www.b4x.com/android/forum/threads/textrecognitionandroid-ocr.121018/ but the project requires ocrrest and I could not find it anywhere.

I then proceeded to download https://www.b4x.com/android/forum/threads/ocr-ocr-reader-complete.70659/.

Plenty of archives to download, but in the end, I get the error:

Maven artifact not found: androidx.annotation/annotation-experimental

I reinstalled the SDK following the instructions at https://www.b4x.com/b4a.html but still no joy. Seems what I downloaded following instructions no longer contain the required files.

Is there any OCR project that works out of the box ?

TIA

 

[Sandman]

Does it need to happen locally on the device?

 

[amidgeha]

I am starting to get desperate. I need OCR to scan books.

I tried the project at https://www.b4x.com/android/forum/threads/textrecognitionandroid-ocr.121018/#content but unfortunately, results are not consistent. Sometimes it works, other times nothing happens.

I downloaded this https://www.b4x.com/android/forum/threads/textrecognitionandroid-ocr.121018/ but the project requires ocrrest and I could not find it anywhere.

I then proceeded to download https://www.b4x.com/android/forum/threads/ocr-ocr-reader-complete.70659/.

Plenty of archives to download, but in the end, I get the error:

Maven artifact not found: androidx.annotation/annotation-experimental

I reinstalled the SDK following the instructions at https://www.b4x.com/b4a.html but still no joy.

Is there any OCR project that works out of the box ?

 

[amidgeha]

Windows app: https://thejavasea.com/threads/ocr-convert-image-to-text-multi-language.102/

 

[MitchBu]

Does it need to happen locally on the device?

I don't care, really. I looked at the web service, but it still misses a library.

All I need is a B4A solution that actually works reliably.

 

[MitchBu]

Windows app: https://thejavasea.com/threads/ocr-convert-image-to-text-multi-language.102/

Thank you, but I need that for B4A

 

[Sandman]

I don't care, really.

Well, if it's a commercial solution I would probably throw up a VPS with Linux, running a simple service to do the ocr'ing and returning the text. Doing it like that would also mean you could somewhat easily improve the UX of your app by simply improving the server.

I'd probably start by installing Tesseract OCR https://blog.eldernode.com/install-and-use-tesseract-ocr-on-debian/
(Just a random article I found on the topic.)

 

[Johan Schoeman]

What about taking a pic of each page and save them in a combined PDF? No miss reads....

 

[bskotu555]

I also encountered your confusion today. Currently, I am trying one by one on the forum, but the results are not good. Have you finally solved the problem? My requirement is to take photos and OCR recognize the text on the image, and fill it into the text box.@MitchBu

 

[Magma]

Well...

before some months searching b4x forum for the same.... and create the following...

B4XOCRPage - Specific OCR capture area (using MLKIT GMS Vision OCR)

Hi there... If you already seen the example of Erel with Barcode/QRCode Reading-Scanner using ML / GMS Vision Lib... you will understand the simplicity... well i wanted to do the same with ocr having specific Region (orthogon-square) for cropping - recognizing the text from specific area.... *...

www.b4x.com

Is not that I ve created something extremely different... but it was something i needed and worked for me...

I want to share my experience... first @Johan Schoeman solution works very good...
ofcourse GMS Solution is extremely fast...

BUT... you need to have the latest Android resources, also click at SDK every library about GMS, recognition, google play services..
also before download and unzip the latest Android resources..Android SDK...command line tools... delete the old Folder !

Target at android-35 sdk at project properties/build config... also have the right manifest ! pray... and will work Perfect!

For me works from Android 7 to Android 15... and for Google Play Certified Devices <- (have this also in mind)

* At the other hand not having yet greek language... ocr... hope some time have...