Scanning/processing on Android phone/tablet

[bookscanner]

I'm developing Android application for complete book processing workflow (useful in libraries etc).

Currently implemented camera image processing with various filters, every filter can be added/removed, enabled/disabled and configured with immediate result display.
For now available regular filters (brightness/gray/mono (several algorithms),rotation/crop etc).
More sophisticated (dekeystoning/dewarping/deskew/despeckle etc) are planned.





Download/test APK (works on Android > 4.2):

abscan.apk.zip

(141.77 KiB) Downloaded 361 times

[L.Willms]

I don't want to discourage the bookscanner, but I had recently seen a software by Adobe for this. How does that compare to yours?

[bookscanner]

Adobe Scan? I don't know, it requires registration. As I understand, its more automatic, without full control / fine tuning of applied filters, and its not standalone, some operations (OCR etc) require connection to Adobe services/cloud

[bookscanner]

Added real-time change of photo resolution/capture period, flash on/off, filters save/load to text format, new filters (contrast stretch, histogram equalization)

abscan.apk.zip

(146.93 KiB) Downloaded 360 times

[bookscanner]

Long click on left checkbox - remove filter.
Long click on filter/parameter name shows its description

[bookscanner]

added pages view, PDF generation

abscan.apk.zip

(157.4 KiB) Downloaded 337 times

[bookscanner]

added image deskew (Radon/Hough)

abscan.apk.zip

(169.78 KiB) Downloaded 373 times

[bookscanner]

project on github: https://github.com/abscan/abscan

[bookscanner]

Added support for Bluetooth shutter (enabled by "trig" checkbox).
Smaller button takes new photo, bigger adds new page

https://ru.aliexpress.com/item/Shutter- ... 67522.html

[the.traveller]

Without reading your post about your excellent efforts on building an Android application for scanning I found earlier this year in 2020 an Android app called vFlat which does a pretty good job making a picture, removing fingers and correct some warping of the page.
Go look here: https://play.google.com/store/apps/deta ... nner&hl=en
Don't get fooled with the sample movie. You still need a glass plate te keep pages as straight as possible