removing distortions from photographed artwork

[Dennisw]

When I photograph flat artwork, I usually get a trapezoidal effect which has to be removed which is no big deal in photoshop using their customized lens correction option.  When I try to fix it in Affinity Photo, no luck -- lens correction doesn't do it, perspective  doesn't do it.  If I am willing to sacrifice part of the work, cropping will do it.  Any suggestions?  Why can AP provide a straight forward and documented way to fix this kind of problem?  There seems to be too much emphasis on correcting building photographing issues.  See the attached file as a reference.

 

[Uuiop]

Hi Dennisw, and welcome,

to see the fix applied (to a panorama) watch this Affinity tutorial video https://player.vimeo.com/video/170633074/, and visit 'About Mesh Warping' in the Affinity Photo Help files.

 

The instructions are very concise, and you may need to double click the Mesh Warp / Perspective tool icon to see the Mesh option. Remember to select "source"!

[James Ritson]

Hey Dennis, are you developing from RAW? The Develop Persona has a Lens panel that has horizontal and vertical corrections which would probably achieve what you need. If you're working with a JPEG or other image format, you can still access these. Just select the image pixel layer and switch to the Develop Persona from the top left, then go to the Lens panel. Horizontal correction should get you a better result, but if it still needs additional correction, then either the Perspective Tool or Mesh Warp Tool would give you more options here.

 

Hope that helps. As Uuiop posted above, the panorama distortion correction video (YouTube link) covers how to set the initial nodes in Source mode then transform them in Destination mode if you're using mesh warping.