You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

To preprocess for camera scan, How to undistort photo of unfolded paper out of mail envelope? Hardcopy is lost and replacement is a month away.

To preprocess for camera scan, How to undistort photo of paper unfolded from mail envelope? The hardcopy is lost and replacement is a month away.

The QR code is positioned where paper is folded; without hardware accessory to remove following image distortions

  1. crease from folded paper
  2. Hexagonal 

Can Keynotes remove distortions from following image?

iPad mini 6, iPadOS 18

Posted on Sep 25, 2024 3:14 AM

Reply
6 replies

Sep 27, 2024 11:38 AM in response to SunnyInToronto

Keynote is not an image manipulation application.


There are apps out there that have image editing capabilities, including distortion and perspective control. Changes are one of them would enable you to straighten the image and recapture the QR code.


Photoshop ($$) and Gimp come to mind. Not sure of their iPad compatibility, though.


Once you straighten the image, the built-in photos app will decode the URL.

Sep 26, 2024 7:26 AM in response to SunnyInToronto

SunnyInToronto wrote:

1. To preprocess for camera scan, How to undistort photo of paper unfolded from mail envelope? The hardcopy is lost and replacement is a month away.

You may need a new original and undistorted version of the QR code image.


The QR code is positioned where paper is folded; without hardware accessory to remove following image distortions
crease from folded paper
2. Hexagonal 
Can Keynotes remove distortions from following image?

Not a Keynote functionality to undistort an image.


https://discussions.apple.com/content/attachment/b047208c-b109-43c7-a961-d72fe57f2d75


Sep 27, 2024 3:02 AM in response to VikingOSX

My follow up as follows

How to extract FPS ID from output of QR scan App?


How to get FPS ID from output of QR scan App which is only way I can find to scan QR code but its output cannot be used for online banking due to my inability to know FPS ID from long string of text. QR code cannot be recognized by Bank App leading to try QR App.

To preprocess for camera scan, How to undistort photo of unfolded paper out of mail envelope? Hardcopy is lost and replacement is a month away.

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.