Magnifying an Image

[Nikon Girl]

Is there anyway to magnify an element of an image and save as a jpeg? When I search the internet for how to do this I keep getting affinity tutorials on how to zoom in for purposes of editing or how to increase the image dimensions, but that is not what I'm seeking to do. I'm a bit new and may be missing something in those discussions, but how do I magnify an aspect of an image? For example If I took a photo of a group at a dinner table, but just want to feature a single person as my final image, is there a way to do this aside from cropping? If I took a picture of a distant bird, can I magnify it to make it more near? I have an image I really like but it was shot too far away and I want to magnify it to the same degree I'm able to perceive it when I zoom in on the photo to edit. This may be an obvious thing to figure out and I'm not getting it, sorry I'm new...

[NotMyFault]

Hi,

When I understand your question correctly, there are two individual steps to be considered:

1. selecting a portion of an existing image, like one person from a group
2. saving this selected person as new jpeg file. Maybe using the current size, maybe magnify/enlarge it a bit.

The first step is commonly know as cropping, especially if you could use a simple rectangular shape. If the cut-out deviates from rectangular shape, it can become more complex as almost every image file today is rectangular, and you need to fit everything non-compliant into that convention.

The second step is simply exporting the result from step 1 as a jpeg file. If you want to magnify/ enlarge the image, this can be done in Photo, too, and called „resize with resample“. But be aware that enlarging in Photo does not reveal or create additional details. The resulting image unavailable becomes a bit blurry. There are other apps (from other vendors, not from Affinity) called „upscale“ or „AI upscaler“ which try to artificially create more details, which is kind hit-and-miss depending on the source material.

 

[Alfred]

8 minutes ago, NotMyFault said:

There are other apps (from other vendors, not from Affinity) called „upscale“ or „AI upscaler“ which try to artificially create more details, which is kind hit-and-miss depending on the source material.

SmillaEnlarger is free and open source, and it’s available for both Mac and Windows.

[John Rostron]

I use Benvista PhotoZoom which works for me to enlarge up to fourfold. The current version 8 costs £49.

Topaz GigaPixel AI also works well (or better), but at twice the price!

But try Photo's Document > Resize Document first though. You may like to try the different scaling algorithms. Different algorithms work optimally on different subjects.

John