45worlds



45worlds Forums  »  45worlds  »  View Topic

Paint.net - Quadrilateral Correction   


Add Reply

  29th Oct 2021, 2:01 PM#1  REPORT  
scrough

No picture 'cos I'm not into 45rpm :(
Member since Jan 2013
3454 Points
Moderator
We've long wished that we could do perspective correction easily in paint.net, but a recent browse on their site shows that we can now do it on rectangles.

You need to add the Quadrilateral Correction effect, which isn't too easy as you need admin privileges to install it properly. Unzipping it before adding to the program files will make things a bit easier.

When you select it from the Effects/Tools menu, it pops up a slightly smaller window on top of the paint.net window. This smaller image makes it harder to position the corner markers accurately using click and drag, but if you move the on-top window around you can see the effect of moving a corner on your main image underneath. So I was able to get decent perspective correction on a rectangular image, and it auto-crops it too, although you need to remove the 'white area' that surrounds it.

I've now been successfully using it for about a month and won't be going back to using JpegView for rectangles.

Anybody fancy trying it?

Edited by scrough on 12th Apr 2022, 1:19 PM

  30th Oct 2021, 8:11 AM#2  REPORT  
sladesounds

Turning rebellion into money since 1962
Member since Nov 2009
6570 Points
Moderator
:thumbsup:


  30th Oct 2021, 7:43 PM#3  REPORT  
scrough

No picture 'cos I'm not into 45rpm :(
Member since Jan 2013
3454 Points
Moderator
Just to show you how easy it is there is a brief tutorial here.


  30th Oct 2021, 8:40 PM#4  REPORT  
robozuc ●

Member since Jun 2011
7510 Points
Moderator
Thanks scrough, it works great !!!


  30th Oct 2021, 9:29 PM#5  REPORT  
getalife

So many questions, so few answers
Member since Nov 2010
879 Points
Moderator
Well explained, thanks scrough.


  4th Nov 2021, 11:51 PM#6  REPORT  
Juke Jules SUBS

Tell me he's lazy, tell me he's slow
Member since Jan 2011
4150 Points
Moderator
...and I was just getting used to JPEGView :neutral: but yes, it's very powerful: I took a photo about 15° from horizontal and you just drag the frame to fit round the four sides and it turns into a rectangle. You may have to expand the canvas slightly to include all four sides


  10th Nov 2021, 10:31 PM#7  REPORT  
scrough

No picture 'cos I'm not into 45rpm :(
Member since Jan 2013
3454 Points
Moderator
Juke Jules wrote:
...and I was just getting used to JPEGView :neutral: but yes, it's very powerful:
Sorry about that Jules. The original JPEGView tutorial has been available (for mods only) since 2016, so your progress to using Quadrilateral Correction seems almost instantaneous :wink:


Add Reply

45cat Forums  :  45worlds Forums  : 


45worlds website ©2025  :  Homepage  :  Search  :  Sitemap  :  Help Page  :  Privacy  :  Terms  :  Contact  :  Share This Page  :  Like us on Facebook
Vinyl Albums  :  Live Music  :  78 RPM  :  CD Albums  :  CD Singles  :  12" Singles  :  7" Singles  :  Tape Media  :  Classical Music  :  Music Memorabilia  :  Cinema  :  TV Series  :  DVD & Blu-ray  :  Magazines  :  Books  :  Video Games  :  Create Your Own World
Latest  »  Items  :  Comments  :  Price Guide  :  Reviews  :  Ratings  :  Images  :  Lists  :  Videos  :  Tags  :  Collected  :  Wanted  :  Top 50  :  Random
45worlds for music, movies, books etc  :  45cat for 7" singles  :  45spaces for hundreds more worlds