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Posted (edited)

I've a pic of a poster but the camera wasn't parallel to it so the shape is distorted – it's wider at the top than the bottom. It's easy enough to rotate it or stretch it but how do I undistort it? I tried the way I would have done it in Photoshop but that didn't work and I've watched all the videos that might have given me a clue.

Keele.jpg

Edited by John Dowell
to make the problem clearer
Posted

Thanks. The perspective tool sounds obvious but I can't get anything to happen. At the bottom of the screen it says drag handles to apply perspective, but I can't see any handles to drag!

Screen_Shot_2020-11-26_at_11_34_26.jpg

Posted

Click "Show grid" and change mode to "Source".

Acer XC-895 Core i5-10400 Hexa-core 2.90 GHz : 32GB RAM : Intel UHD Graphics 630 – Windows 11 Home - Affinity Publisher, Photo & Designer, v2
(As I am a Windows user, any answers/comments I contribute may not apply to Mac or iPad.)

Posted

Just click on the corners. Move them to the corners of the picture. Click "Apply"

Acer XC-895 Core i5-10400 Hexa-core 2.90 GHz : 32GB RAM : Intel UHD Graphics 630 – Windows 11 Home - Affinity Publisher, Photo & Designer, v2
(As I am a Windows user, any answers/comments I contribute may not apply to Mac or iPad.)

Posted

Well, something odd has happened there?
You should have a white bonding box around the image with a white node/handle in each corner.
Have you tried just restarting AP?

macOS 12.7.6  15" Macbook Pro, 2017  |  4 Core i7 3.1GHz CPU  |  Radeon Pro 555 2GB GPU + Integrated Intel HD Graphics 630 1.536GB  |  16GB RAM  |  Wacom Intuos4 M

Posted

That is odd, the grid should just be on the image!

Acer XC-895 Core i5-10400 Hexa-core 2.90 GHz : 32GB RAM : Intel UHD Graphics 630 – Windows 11 Home - Affinity Publisher, Photo & Designer, v2
(As I am a Windows user, any answers/comments I contribute may not apply to Mac or iPad.)

Posted
Just now, PaulEC said:

That is odd, the grid should just be on the image!

Yes, given that the grid extends way beyond the document bounds it’s hardly surprising that the handles aren’t visible. I think we need to see what’s selected in the Layers panel.

Alfred spacer.png
Affinity Designer/Photo/Publisher 2 for Windows • Windows 10 Home/Pro
Affinity Designer/Photo/Publisher 2 for iPad • iPadOS 17.5.1 (iPad 7th gen)

Posted
8 minutes ago, Alfred said:

Yes, given that the grid extends way beyond the document bounds it’s hardly surprising that the handles aren’t visible. I think we need to see what’s selected in the Layers panel.

I was just about to ask the self same thing!

macOS 12.7.6  15" Macbook Pro, 2017  |  4 Core i7 3.1GHz CPU  |  Radeon Pro 555 2GB GPU + Integrated Intel HD Graphics 630 1.536GB  |  16GB RAM  |  Wacom Intuos4 M

Posted

Same as in Photoshop - a panels showing the layers used in the image, with thumbnails. (Usually on the right).

Acer XC-895 Core i5-10400 Hexa-core 2.90 GHz : 32GB RAM : Intel UHD Graphics 630 – Windows 11 Home - Affinity Publisher, Photo & Designer, v2
(As I am a Windows user, any answers/comments I contribute may not apply to Mac or iPad.)

Posted

@John Dowell In your screenshot;  click on the tab marked Lyr next to the Adjustments tab you are currently showing on the right of your screen.

macOS 12.7.6  15" Macbook Pro, 2017  |  4 Core i7 3.1GHz CPU  |  Radeon Pro 555 2GB GPU + Integrated Intel HD Graphics 630 1.536GB  |  16GB RAM  |  Wacom Intuos4 M

Posted

OK thanks  – got it. The writing is so small I didn't recognise Lyr as the layers panel. There's only the background layer. But I've now found that if I save the cropped file then reopen it before using the perspective mesh it works OK, which seems a bit odd. Do I have to save the file after using each tool?

Posted

The cropping is non-destructive. You don't need to save and reopen, just flatten it.

Acer XC-895 Core i5-10400 Hexa-core 2.90 GHz : 32GB RAM : Intel UHD Graphics 630 – Windows 11 Home - Affinity Publisher, Photo & Designer, v2
(As I am a Windows user, any answers/comments I contribute may not apply to Mac or iPad.)

Posted

Once straightened be mindful of the original dimensions of the poster, because straightening will likely distort the aspect ratio of the poster. measure the poster and change the height and width accordingly.

iMac 27" 2019 Sequoia 15.0 (24A335), iMac 27" Affinity Designer, Photo & Publisher V1 & V2, Adobe, Inkscape, Vectorstyler, Blender, C4D, Sketchup + more... XP-Pen Artist-22E, - iPad Pro 12.9  
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