Productivity Sauce

Dmitri Popov

There is no lack of apps of varying degrees of sophistication and quality that can transform your Android device into a handy note digitizing tool. And if you prefer to keep things simple and open source, Open Note Scanner is what you need. The utility relies on OpenCV software (you need to install it separately) to do its magic, and it does the job without any input on your part. Open Note Scanner supports two modes: Manual and Auto. In the manual mode, it's up to you to accurately frame the page your want to digitize. Keep in mind that the app works best with pages that have dark (or preferably black) borders around it. To get the best possible result, you might want to place a loose page on a black surface.

Switch to the Auto mode, and you can use Open Note Scanner with specially designed templates (they are bundled with the source code package available in the project's GitHub repository). In this mode, the app scans the page as soon as it detects a QR code on it, and Open Note scanner automatically adjusts perspective and rotates the scanned image. Although Open Note Scanner supports the Color mode, the results it produces are far from ideal. So for now, you might want to stick to the default black-and-white mode.

The app features a simple gallery that allows you to browse the digitized notes as well as share them. Open Note Scanner is available on Google Play and F-Droid, and you can download an APK package from the project's GitHub repository.

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