Affinity Photo Resize does not appear to resize

[johnptd]

I have two images of the Sun. One of the surface and the second with just proms and the surface is either blacked out of totally white. What I was trying to do was slightly shrink the proms image so that the surface image would overlay any of the rim of the proms image. When I attempt to resize the proms image, it does not appear to change in the display no matter how small I make it. This makes it difficult to overlay the surface area of the proms image. Is there anything I am missing in the resize function?

JohnD

[GarryP]

On 4/21/2023 at 12:59 PM, johnptd said:

When I attempt to resize the proms image, it does not appear to change in the display no matter how small I make it.

What type of layer is the image (Image, Pixel, something else?), which functionality are you using to resize the image, and how are you using that functionality?

If you can give us a full-screen screenshot where, amongst other things, we can see the Layers Panel with the ‘problem’ image layer selected, and tell us, step-by-step, what you are doing then we can probably help further.

Note: A video showing the process would also be useful if you can supply one. If you can supply the original document then that's usually even better.

[johnptd]

Thanks for responding.

Going through everything step by step I realized that I was changing the resolution on the combined surface and proms document and not the particular layer I was on so of course there would be no difference. When I deleted the surface layer that had been copied onto the proms image, then resized the proms image document, and then pasted the surface image onto the proms image again, there was an obvious difference. So I am good to go. Actually a few days later I discovered that with a special piece of software, I do not even have to go through this process as this software can extract the proms out of the surface image. Makes things a lot easier.

Thanks for your help. I have attached the finished product after going through the complete process using several pieces of software. As the images were monochrome, I used Affinity Photo as the final step to colorize the solar surface.

JohnD

 

[GarryP]

Good to hear that you’re sorted now.
Nice image.

P.S. If you say what the “special piece of software” is then that might be of use to other people reading this.

[johnptd]

It is called ImPPG. It is basically tailored for processing solar images. It has a tone curve function which really does a great job of extracting the proms out of the image and not wasting the surface even though the proms are very faint.

JohnD