Android Question Camera document scanner with OpenCV or Camera2

[Vicente Barba]

Hi,
I would know how to make an app to get image files in JPG format from camera with perspective fixing by manual border selection or in real time.
I have found something similar at https://github.com/jhansireddy/AndroidScannerDemo
Does anyone know if it can be solved with B4A libs OpenCV or Camera2? Please by example.

Thanks !

 

[Johan Schoeman]

Search for LiveEdgeDetection in the forum. It might be close to what you are looking for....

https://www.b4x.com/android/forum/threads/liveedgedetection.92402/

 

[Vicente Barba]

That is exactly what I was looking for.
Thank you very much for the information Johan !

 

[Johan Schoeman]

I have downloaded and managed to do shortcut wrap for it that can be kick started from within B4A (https://github.com/jhansireddy/AndroidScannerDemo). My observations:
1. The jar is just short of 20MB in size
2. The cropping does not seem to work properly (Github project compiled to a B4A lib)
3. Have downloaded the APK and it also does not seem to crop properly
4. The APK UI (when downloaded from the Github link) is different to that of the Github code once installed.

Have filed the project in "file 13"

JS

 

[DonManfred]

Have filed the project in "file 13"

I just wanted to ask but a short Googling does help