Any App that can upacale a photo on iPad Pro?

[Susurus]

Hi!

I was wondering whether there is any app available for iPads that can upscale a photo - Affinity, PS iPad, or something else?

Thanks!

 

[Digital Nigel]

Hi!

I was wondering whether there is any app available for iPads that can upscale a photo - Affinity, PS iPad, or something else?

Affinity Photo does. This is part of the help message:


Help message from AP for iPad (Cropped screen shot)

I took that (cropped) screen shot and upscaled it:


Upscaled in Affinity Photo for iPad

 

[Susurus]

Hi!

I was wondering whether there is any app available for iPads that can upscale a photo - Affinity, PS iPad, or something else?

Affinity Photo does. This is part of the help message:


Help message from AP for iPad (Cropped screen shot)

I took that (cropped) screen shot and upscaled it:


Upscaled in Affinity Photo for iPad

Thank’s a lot!

P.S. Affinity (Lanczos) seem to work a lot faster than Gigapixel AI on my Mac. Haven’t done a test on how the alghoritms and quality compare though.

 

[Digital Nigel]

P.S. Affinity seem to work a lot faster than Gigapixel AI on my Mac. Haven’t done a comparison on how the alghoritms and quality compare though.

There's a big difference in how they work.

Affinity and others generate interpolated pixels using mathematical algorithms, which run quickly and predictably. Any program using the same algorithm (eg, bicubic) will produce exactly the same result.

Gigapixel works using AI to invent new pixels based on analysing large numbers of other images that it thinks are similar. Those pixels aren't just derived from the surrounding pixels. A new release of Gigapixel might well produce different results, not necessarily better (eg, there might be ugly artefacts produced by one release but not by another).

The process is slow, and the results very unpredictable. It works pretty well with bird feathers (as Topaz obviously used a lot of similar images for training), quite well for animal fur and plant foliage, much less well for people, and badly for buildings. This is probably because we wouldn't know if the generated feathers look accurate or not, but we're highly tuned to spot fake looking faces or unrealistic buildings.

So you're much better off using something like Affinity Photo when upsizing building and people photos, but Gigapixel will do better with birds and animals. This is particularly so if upsizing by more than 2:1.

 

[Susurus]

Thank you again for the explanation!