ImageEn for Delphi and C++ Builder ImageEn for Delphi and C++ Builder

 

ImageEn Forum
Profile    Join    Active Topics    Forum FAQ    Search this forumSearch
Forum membership is Free!  Click Join to sign-up
Username:
 Password:
Save Password
Forgot your Password?

 All Forums
 ImageEn Library for Delphi, C++ and .Net
 ImageEn and IEvolution Support Forum
 How to auto rotate scanned images with marker.		  New Topic  Reply to Topic
Author Previous Topic Topic Next Topic  

adisonx

Thailand
29 Posts
Posted - Sep 10 2018 :  04:24:47  Show Profile  Reply
How to auto rotate scanned images with markers
(L shapes ) on every corners .
Thank you in advance.

xequte

39053 Posts
Posted - Sep 10 2018 :  19:43:00  Show Profile  Reply
For general document Deskew, you can use IEVision's OCR getOrientation or TImageEnProc.SkewDetectionFine and SkewDetection.

https://www.imageen.com/help/TIEVisionOCR.getOrientation.html
https://www.imageen.com/help/TImageEnProc.SkewDetectionFine.html
https://www.imageen.com/help/TImageEnProc.SkewDetection.html

Other than that there is not a specific method to detect markers, but you could iterate through the scanlines to locate the four corners and then calculate the deskew yourself.

Nigel
Xequte Software
www.imageen.com
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
Jump To: