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Hopefully related: If I'm a photographer wanting to improve resolution of my content for printing, what's my current best bet for upscaling? Is it realistic to

by prawn 4y ago

Hopefully related: If I'm a photographer wanting to improve resolution of my content for printing, what's my current best bet for upscaling? Is it realistic to make use of this on the command line, feeding it my own images? Or has someone wrapped it in an app or online service?

ftufek 4y ago
You're probably better of using Real-ESRGAN: https://github.com/xinntao/Real-ESRGAN https://github.com/xinntao/Real-ESRGAN. It's pretty solid and fast, even has portable executables you can just use as is. The upscaler that comes with stable diffusion might work for you, but I suspect it'll probably do a better job at upscaling stable diffusion output rather than a natural images (might be wrong though).
- sendfoods 4y ago
  Not sure about your last claim. The example given in the blog post looks very very close to a natural image.
- TaylorAlexander 4y ago
  I tried this on one of my home images. I have a nice canon pro 100 printer that can print 13”x19” pictures, and my camera is a 20 megapixel Panasonic GH-5. The printer can print much higher resolution than my camera. So I did take one of my photos and process it with Real-ESRGAN to double the resolution (in each direction, so 4x pixels). The photo is a red barn with redwood trees behind it. It did well increasing the resolution of the barn. It made it look more crisp and bright. But there is an area with some trees in shadow behind the barn, and it lost detail there. Anyway I think it would be fun to play with, just depends on the content of the image and the artists preferences. I still haven’t printed a full page of the upscaled photo but I do want to try that and see how it looks in comparison!
fassssst 4y ago
Photoshop and Lightroom have had AI upscaling for awhile.
- prawn 4y ago
  Ah - had forgotten. I'll try them first. Thanks.
  - osener 4y ago
    So does Pixelmator. You can try the free trial which comes with this feature.
    - M4v3R 4y ago
      Pixelmator's Super ML Resolution does a great job with upscaling images, can highly recommend it.
      - drcongo 4y ago
        Yeah, I use it quite a lot on stuff generated by Midjourney and the results are always great.
rand0mx1 4y ago
This thread has a useful app. https://news.ycombinator.com/item?id=32628761 https://news.ycombinator.com/item?id=32628761
ansgri 4y ago
As a counter-recommendation, Topaz’s much-advertised Gigapixel AI is rarely useful. Their Denoise and Sharpen apps are good though.
- zimpenfish 4y ago
  I dunno - I've found it useful on a bunch of images[1] but I tend to try Pixelmator Pro first because that's a simple key combination to enlarge an image and 90% of the time it's Good Enough for my purposes. [1] The new Photo AI, on the other hand, is slow, clunky, and not infrequently glitches out wildly. But on the plus side it does combine sharpening and denoising into one workflow.
  - jbellis 4y ago
    I was super unimpressed with the 1.0 release of Photo AI; in particular, the sharpening was a LOT slower than standalone. But that's fixed now, and unless Topaz starts backporting the improved models to the standalone tools -- so far, they have not -- Photo AI will get you better results.
- jbellis 4y ago
  I spent a lot of time last month using Gigapixel (actually the improved version in their new Photo AI product) last month on dozens of images for my dad's memoir. There were a couple failures where the input image was just so blurry or low-res that it couldn't be saved, but Topaz significantly improved image quality while upscaling in 90+% of cases.
mdorazio 4y ago
If you have a Nvidia GPU, I've been using Upscayl locally and for free with decent results: https://github.com/upscayl/upscayl https://github.com/upscayl/upscayl Note that on some image types it tends to make things look digitally painted rather than detailed. I recommend you try a few different tools and see what works best for the type of photography you do.

by prawn 4y ago

ftufek 4y ago

You're probably better of using Real-ESRGAN: https://github.com/xinntao/Real-ESRGAN https://github.com/xinntao/Real-ESRGAN. It's pretty solid and fast, even has portable executables you can just use as is. The upscaler that comes with stable diffusion might work for you, but I suspect it'll probably do a better job at upscaling stable diffusion output rather than a natural images (might be wrong though).

sendfoods 4y ago
Not sure about your last claim. The example given in the blog post looks very very close to a natural image.
TaylorAlexander 4y ago
I tried this on one of my home images. I have a nice canon pro 100 printer that can print 13”x19” pictures, and my camera is a 20 megapixel Panasonic GH-5. The printer can print much higher resolution than my camera. So I did take one of my photos and process it with Real-ESRGAN to double the resolution (in each direction, so 4x pixels). The photo is a red barn with redwood trees behind it. It did well increasing the resolution of the barn. It made it look more crisp and bright. But there is an area with some trees in shadow behind the barn, and it lost detail there. Anyway I think it would be fun to play with, just depends on the content of the image and the artists preferences. I still haven’t printed a full page of the upscaled photo but I do want to try that and see how it looks in comparison!

fassssst 4y ago

Photoshop and Lightroom have had AI upscaling for awhile.

prawn 4y ago
Ah - had forgotten. I'll try them first. Thanks.
- osener 4y ago
  So does Pixelmator. You can try the free trial which comes with this feature.
  - M4v3R 4y ago
    Pixelmator's Super ML Resolution does a great job with upscaling images, can highly recommend it.
    - drcongo 4y ago
      Yeah, I use it quite a lot on stuff generated by Midjourney and the results are always great.

rand0mx1 4y ago

This thread has a useful app. https://news.ycombinator.com/item?id=32628761 https://news.ycombinator.com/item?id=32628761

ansgri 4y ago

As a counter-recommendation, Topaz’s much-advertised Gigapixel AI is rarely useful. Their Denoise and Sharpen apps are good though.

zimpenfish 4y ago
I dunno - I've found it useful on a bunch of images[1] but I tend to try Pixelmator Pro first because that's a simple key combination to enlarge an image and 90% of the time it's Good Enough for my purposes. [1] The new Photo AI, on the other hand, is slow, clunky, and not infrequently glitches out wildly. But on the plus side it does combine sharpening and denoising into one workflow.
- jbellis 4y ago
  I was super unimpressed with the 1.0 release of Photo AI; in particular, the sharpening was a LOT slower than standalone. But that's fixed now, and unless Topaz starts backporting the improved models to the standalone tools -- so far, they have not -- Photo AI will get you better results.
jbellis 4y ago
I spent a lot of time last month using Gigapixel (actually the improved version in their new Photo AI product) last month on dozens of images for my dad's memoir. There were a couple failures where the input image was just so blurry or low-res that it couldn't be saved, but Topaz significantly improved image quality while upscaling in 90+% of cases.

mdorazio 4y ago

If you have a Nvidia GPU, I've been using Upscayl locally and for free with decent results: https://github.com/upscayl/upscayl https://github.com/upscayl/upscayl Note that on some image types it tends to make things look digitally painted rather than detailed. I recommend you try a few different tools and see what works best for the type of photography you do.