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ethereal-developers / OpenScan

A privacy-friendly Document Scanner app
BSD 3-Clause "New" or "Revised" License
1.41k stars 81 forks source link

Edge detection filter (cropper improvement) #29

Open lgasp opened 3 years ago

lgasp commented 3 years ago

The best filter to highlight document text or drawing on paper is usually edge detection filter, like done in open note scanner . I think that it would be a great improvement to an already great application

PinkPlasticBeach commented 3 years ago

Yes this is exactly what i would love to see as well.

Look at open note scanner. The results are very usable, but it dosnt have this nice ui, crop and multi-page support like your app.

Workaround for 1 page: shoot with open note scanner and open in openscan (the share option wont show open scan? Other issue )

I'll try to attach some images

1 is original 2&3 are openscan (grey and b&w) 4 is open note scanner (imported with open scan). This is best for printing/copying

2021-05-15-1.jpg

2021-05-15-2.jpg

2021-05-15-3.jpg

2021-05-15-4.jpg

Thanks a lot for openscan!