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Show HN: Open Paperless – Scan, index, and archive paper documents

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Re: Show HN: Open Paperless – Scan, index, and archive paper documents

#21

Post by nothrabannosir »

zhoubear wrote: post #13
joshvm wrote: post #12

Earlier quoted context omitted.

It's a little bit more tricky than that. What the EXIF might tell you is the camera calibration parameters like focal length, distortion, perspective center, etc. That can be used to fix systematic errors in images like pincushion/barrel distortion. To unwarp photos that were taken at odd angles you need to do some image processing. The mathematics aren't particularly difficult, it's a homography transform in most ca…

Thanks for the link. That blew my mind! I wish it could be added would, my phone would replace my scanner instantly.

Scannable (by Evernote ) does this wonderfully. Allows exporting as pdf and storing wherever. I’m a fan.

Re: Show HN: Open Paperless – Scan, index, and archive paper documents

#22

Post by grahamburger »

zhoubear wrote: post #13
joshvm wrote: post #12

Earlier quoted context omitted.

It's a little bit more tricky than that. What the EXIF might tell you is the camera calibration parameters like focal length, distortion, perspective center, etc. That can be used to fix systematic errors in images like pincushion/barrel distortion. To unwarp photos that were taken at odd angles you need to do some image processing. The mathematics aren't particularly difficult, it's a homography transform in most ca…

Thanks for the link. That blew my mind! I wish it could be added would, my phone would replace my scanner instantly.

Google Drive mobile app does this natively (at least on Android) there's a 'Scan' option when adding a file that will do it.

Re: Show HN: Open Paperless – Scan, index, and archive paper documents

#25

Post by chrisweekly »

EGreg wrote: post #5

I have a question Is there a service anyone knows about which will print your email and send it with tracking of receipt or signature, so you can prove what was physically sent? Or you mail it to them and they open your mail, scan it and forward it on with signature required, with your address as the return address? Because righy now you can only prove that the ENVELOPE was received, not what was in it.

there are lots of virtual mailbox service offerings out there, to open and scan mail for you. what you describe is right up their alley.

Re: Show HN: Open Paperless – Scan, index, and archive paper documents

#26

Post by arca_vorago »

curioussavage wrote: post #23

Any good open source desktop software with linux support to do this? I don't see why I would personally want a web app for this.

There are, I just can't think of them at the moment, I know though because I setup a bookscanner with a linux box. If I remember right the scan/ocr/archive tools are all seperate, so you would have to script them together.

Re: Show HN: Open Paperless – Scan, index, and archive paper documents

#28

Post by jackvalentine »

curioussavage wrote: post #23

Any good open source desktop software with linux support to do this? I don't see why I would personally want a web app for this.

I haven't tried this yet, but - https://openpaper.work/

Edit: tried it, it's crap.

Re: Show HN: Open Paperless – Scan, index, and archive paper documents

#30

Post by pw0nka »

Looks great. Love the idea behind it, but...

There is at least one country (mine - Switzerland) which is not able to use software like yours. The problems are the current laws that force people and organizations to store physical copies of the documents (for several years). Electronic documents have no value in front of the law, which is why we have no choice but to do all of that offline, manually.

I've tried many archiving solutions, but non of them saved any bit of time. The one single, missing feature was an automatism to print a serial code (the electronic document ID) back on the original document. This way you could just scan it, print it, put it in a large box where you sort it by its ID - that simple. And this would even work if you would use spacers to split the documents on the scanning process.

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