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Create pixels at crop's alpha edge


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  • Staff

Hi jimmyleg,

Welcome to the forums :)

My apologies, are you looking to expand the size of the Canvas around your image, without changing the size of the image? I'm not 100% certain what you're looking for in regards to 'creating pixels'.

Please Note: I am now out of the office until Tuesday 2nd April on annual leave.

If you require urgent assistance, please create a new thread and a member of our team will be sure to assist asap.

Many thanks :)

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Dan C. - Yes.  After cropping an image outside of its border the canvas will show alpha strips on the border. Can Affinity create an intelligent extension of the image on that alpha strip?  I thought I saw a video of that process, but I can't be sure *grin*.  If so, how do you do it?

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3 minutes ago, jimmyleg said:

After cropping an image outside of its border the canvas will show alpha strips on the border.

Can you provide a screenshot showing those alpha strips? That's still unclear (to me, at least :) ).

-- Walt
Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases
PC:
    Desktop:  Windows 11 Pro, version 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 

    Laptop:  Windows 11 Pro, version 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
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  • Staff

Hi jimmyleg,
Welcome to Affinity Forums :)
cmd + click (ctrl+click on Windows) the thumbnail of the pixel layer to create a selection around its contents. Go to menu Select > Invert Pixel Selection to select just the empty/transparent parts then go to menu Edit  > Inpaint to fill them in (make sure the pixel layer is selected in the Layers panel).

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Thanks, @jimmyleg!

-- Walt
Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases
PC:
    Desktop:  Windows 11 Pro, version 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 

    Laptop:  Windows 11 Pro, version 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
iPad:  iPad Pro M1, 12.9": iPadOS 17.4.1, Apple Pencil 2, Magic Keyboard 
Mac:  2023 M2 MacBook Air 15", 16GB memory, macOS Sonoma 14.4.1

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