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Scanners have the advantage not to distort the image what a photo inherently does. I do not know if today's phone cameras regard the spherical distortion, but I
by jhoechtl 5y ago
Scanners have the advantage not to distort the image what a photo inherently does. I do not know if today's phone cameras regard the spherical distortion, but I doubt as this would require to have several distance measures I guess those cameras don't have.
- watt 5y agoIt just doesn't matter - the only thing that matters is if the text (information) that's being imaged is readable for person receiving it. Apps like Office Lens will undistort the pic and it just looks good enough. (App knows you are taking a picture of A4 page, so it knows how to make it look straight + white.)
- ClumsyPilot 5y agoSometimes it does matter - a particularly small font, a colour document, watermarks, etc. Can render it unsuitable.
- Sayrus 5y agoI used to use CamScanner. The scanning mode will take a distorted document, find the edges and output a "flattened" document. For me, this was usually more than enough to look like a scan.
- ydant 5y ago> CamScanner And then it got bought and malware added. https://news.ycombinator.com/item?id=20818177 https://news.ycombinator.com/item?id=20818177 These days on Android, Google Drive's scan functionality works just as well as CamScanner used to. I use it for a lot of cases where I'd previously use a proper scanner - it's good enough most of the time. Or even Google Lens / Google Camera does a decent job of scanning in the special scan document mode, although you have to rely on the software actually recognizing that's what you're trying to do to get the button to show up to start the process.