PS vs Gigapixel comparison

[Jameel Hyder]

Starting a new thread. I took the andromeda galaxy image from Jim's post and cropped it 662 pixel wide as the base image. Upscaled it 2x, 4x and 6x with both PS and Gigapixel. Here are the results.

EDIT: The PS upscale is done with Image->Image Size, the resample to Preserve Detail 2.0 and the width/height value in percentage.

Original

PS 2x

PS 4x

PS 6x

GP 2x

GP 4x

GP 6x

 

[AlanLichty]

Interesting comparison - for this type of image I find the Gigapixel images a lot sharper than the PS results. PS feels a bit on the fuzzy side for the stars in the scene - esp. when it comes to the 4x and 6x versions.

 

[Jameel Hyder]

I find a good way to compare is to load both of both in PS as layers and set the blend mode to "difference".

 

[JimFox]

I find a good way to compare is to load both of both in PS as layers and set the blend mode to "difference".

That's a great idea.

And thanks for doing this.

 

[JimFox]

I will need to now download these and do as you say with the blending mode since they appear pretty close to identical from here.

Jameel, in your top post, can you list how you upscaled the photo in Photoshop, so that those who don't know how can see the way to do it.

 

[Ben Egbert]

All of the upscales look pretty darn good.