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General => Open Discussion => Topic started by: sjefen on November 14, 2018, 01:37:55 PM

Title: A.I. Gigapixel
Post by: sjefen on November 14, 2018, 01:37:55 PM
Hi,


Anyone had any experience with this software?
It looks interesting, but I wanna know if it's for real.

https://topazlabs.com/ai-gigapixel/ (https://topazlabs.com/ai-gigapixel/)


- Terje
Title: Re: A.I. Gigapixel
Post by: archonforest on November 14, 2018, 02:31:35 PM
Wow, this is very interesting. Wonder how it can fix a blurred jpg looking picture to that sharp.
Title: Re: A.I. Gigapixel
Post by: sjefen on November 14, 2018, 04:53:50 PM
A trail is available and I just tested it with one image.
It's very impressive  :o


- Terje
Title: Re: A.I. Gigapixel
Post by: jaf on November 14, 2018, 06:54:20 PM
Yes it is.  I've been rendering at 4K, 3840x2160, so to test, I rendered the same image in HD.  The HD version rendered in 47m 19s and the 4K one in 3h 00m 18s, so that's a huge time savings.  The quality level resizing up from HD to 4K appears identical.  Need to run a few tests on scenes that would tend to show changes due to resizing.

Forgot to check resource savings (difference between rendering in 4K and HD.)
Title: Re: A.I. Gigapixel
Post by: WASasquatch on November 14, 2018, 08:02:43 PM
This is just their Topaz clean feature employed with resizing.

Been using Topaz Labs for over a decade I think.

I honestly think you'd get better control using Topaz Labs for Photoshop itself? You can of course use PS batch features or scripts.

And my copy is like over a decade old and doesn't seem to be any different than their results with this "A.I." Gigaplex.

---

I'm really interested in the deep image neural network setups that I've been seeing going around. I can't seem to find the one from google, but found this other one I hadn't seen: https://dmitryulyanov.github.io/deep_image_prior
Title: Re: A.I. Gigapixel
Post by: jaf on November 14, 2018, 08:40:45 PM
WAS... Where is the "clean" function in the Studio menu, or is it a paid plugin?
Title: Re: A.I. Gigapixel
Post by: sjefen on November 14, 2018, 09:13:27 PM
I'm really interested in the deep image neural network setups that I've been seeing going around. I can't seem to find the one from google, but found this other one I hadn't seen: https://dmitryulyanov.github.io/deep_image_prior

Is this the one you're talking about from Google:
https://ai.googleblog.com/2016/11/enhance-raisr-sharp-images-with-machine.html?m=1


- Terje
Title: Re: A.I. Gigapixel
Post by: WASasquatch on November 14, 2018, 10:34:52 PM
WAS... Where is the "clean" function in the Studio menu, or is it a paid plugin?

Yeah it's part of the Topaz Labs Suite for Photoshop. Forget which version (I think it's Topaz Labs 7; I don't currently have it installed cause all my backups are missing somewhere in this rig). Looking at their website, it seems in-fact, they removed Clean filter for use with this new system, which is odd.

Edit: Here are "classic" downloads: https://topazlabs.com/clean/

Edit 2: I often used clean in conjunction with denoise or dejpeg depending on the image. As for the actually rescaling, it's probably stepped like what's been discussed here at 10% intervals, or using the best enlargement algorithm as a base and just doing a full resize.

Is this the one you're talking about from Google:
https://ai.googleblog.com/2016/11/enhance-raisr-sharp-images-with-machine.html?m=1


- Terje

That's similar but it was a rather new post on showing some similar demonstrations at the Topaz, super low res images with fabrics and skin, etc.
Title: Re: A.I. Gigapixel
Post by: jaf on November 15, 2018, 07:43:26 AM
Tried a quick test.  Rendered at 800x800 in TG, then resized in Affinity Photo, ON1 2019 RAW, and Topaz A.I Gigapixel to 3200x3200.  Then cropped to a 800x800 area. Images are, the original, resized x4 in Affinity, On1, and Topaz. [edit] Forgot to post these in jpg.... sorry Oshyan
Title: Re: A.I. Gigapixel
Post by: sjefen on November 15, 2018, 08:00:05 AM
That looks pretty good!


- Terje
Title: Re: A.I. Gigapixel
Post by: Kadri on November 15, 2018, 12:36:47 PM

Looks more like warpsharp-warpresizing like an old Gimp and Virtualdub plugin to me. But a little better version then those.
Title: Re: A.I. Gigapixel
Post by: jaf on November 15, 2018, 02:16:55 PM
Yeah, but not bad if one had a limited machine or doesn't have the time to render at higher resolutions.
Title: Re: A.I. Gigapixel
Post by: Kadri on November 15, 2018, 02:25:56 PM
Yeah, but not bad if one had a limited machine or doesn't have the time to render at higher resolutions.

Yes.
I tried some variations in Virtualdub.Topaz does have a little more detail in general...from the tests i made at least.
Title: Re: A.I. Gigapixel
Post by: WASasquatch on November 15, 2018, 05:42:45 PM
I just never liked Topaz algorithms. They're very flat and artistic like. You can see it in the leaf textures and berries in the resized.
Title: Re: A.I. Gigapixel
Post by: WASasquatch on November 15, 2018, 08:08:00 PM
Never-mind the obvious jpeg noise I expect, but doing some testing, it seems you get more detail just using photoshop resizing with it's denoise and smart sharpen / sharpen filters.

To my eyes, it preserves texture detail better.
Title: Re: A.I. Gigapixel
Post by: Tangled-Universe on November 15, 2018, 09:27:09 PM
The only way to figure out which performs best is to croprender at 3200x3200 and compare.
Title: Re: A.I. Gigapixel
Post by: WASasquatch on November 15, 2018, 10:35:20 PM
The only way to figure out which performs best is to croprender at 3200x3200 and compare.

That's true, though there is obviously quality loss in all. Namely definition between solids.