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"AI Enhanced" images will always lose in a merge

cgsweat
Jan 29, 2022 - permalink

There seems to be a recent uptick in users uploading "enhanced" images with blown up resolutions. Just a FYI, these images will always lose in a merge. We prefer an original image from a trusted source (primarily a model or photographer's social media page).

Jan 29, 2022 - permalink

I've always felt oh-so-surprised when this happens. The same (recently appeared in the woman's IG / Twitter) image you posted reappears a week later but oh-surprise, it's 10% (or similarly) larger. Of course, it overwrites your own post since it has "better resolution".

cgsweat
Jan 29, 2022 - permalink

I've always felt oh-so-surprised when this happens. The same (recently appeared in the woman's IG / Twitter) image you posted reappears a week later but oh-surprise, it's 10% (or similarly) larger. Of course, it overwrites your own post since it has "better resolution".

Yeah, the other mods have been notified about it so they should know what to look for. As always, if there is an image you think might have been merged the wrong way then you're welcome to message the staff or send a report (I know you know but this is for anyone reading this).

tamarok
Jan 30, 2022 - edited Jan 30, 2022 - permalink

BTW these artificially blown up images will cause problems with the merge logic which prioritises larger image sizes. This means as mods we will need to manually adjust the merge in these cases. If you do believe an image was merged into a blown up one, then do let us know so we can investigate.

Rereading I have duplicated what cgsweat said, but either way don’t panic and just create a report when the merge seems wrong.

Jan 31, 2022 - permalink

Is there a way to recognize these "enhanced" images? The pics I download from Instagram are most of the times 1080 pixels wide or high, I sometimes see larger numbers - are those enhanced?

I can imagine that other sources than Instagram may have other dimensions.

tamarok
Jan 31, 2022 - permalink

While I can't answer that question, since I don't have the expertise, but this page may help answer the dimensions Instagram images generally have:

https://www.tailwindapp.com/blog/instagram-im...

cgsweat
Feb 01, 2022 - permalink

Is there a way to recognize these "enhanced" images? The pics I download from Instagram are most of the times 1080 pixels wide or high, I sometimes see larger numbers - are those enhanced?

I can imagine that other sources than Instagram may have other dimensions.

If you've used software then it's easy to spot. Upscaling introduces irregularities into the image because rather than enlarging the existing pixels, it has to create new ones to fill in the expanded area. So AI "guesses" what it will look like. It basically looks like what you would expect a machine to produce (skin texture begins to look somewhat alien, hair strands are blended together, etc.).

If you're referring to images that are 1440x1800, then that is a standard IG size, which will be the result depending on what program you use for downloading. However they are so extremely close in quality to 1080x1350 that the difference is usually negligible. So we typically just favor whoever uploaded first (assuming there are no other differences). We do check every image, and so sometimes if a 1440 image happens to be significantly higher in quality, then it will win the merge regardless of who uploaded first. Quality always wins.

Feb 01, 2022 - permalink

Yeah, the other mods have been notified about it so they should know what to look for. As always, if there is an image you think might have been merged the wrong way then you're welcome to message the staff or send a report (I know you know but this is for anyone reading this).

Rereading I have duplicated what cgsweat said, but either way don’t panic and just create a report when the merge seems wrong.

Thanks a lot, both of you, honestly - but I've quit complaining about merged images, mostly for 2 reasons:

1 - I cannot tell for sure if an image has been artificially upscaled (even if I use rescaling for other stuff myself).

2 - Complaining for points is not what I'm here for, and not gonna cry to the Mods anymore for this kind of stuff; last time I did I felt kinda embarrased, for it wastes everybody's time. Hooray for the "scammer", what a winner they are (applause).

So we typically just favor whoever uploaded first (assuming there are no other differences).

You sure? XD.

Mar 13, 2022 - permalink

If you're referring to images that are 1440x1800, then that is a standard IG size, which will be the result depending on what program you use for downloading. However they are so extremely close in quality to 1080x1350 that the difference is usually negligible. So we typically just favor whoever uploaded first (assuming there are no other differences). We do check every image, and so sometimes if a 1440 image happens to be significantly higher in quality, then it will win the merge regardless of who uploaded first. Quality always wins.

My upload (1080) was merged into this one, which is 1440:

But the only part that I can see which is significantly sharper, are the letters. But hey, I'm not here for letters 😉

Chainer
Mar 13, 2022 - permalink

I do think on that one that the larger 1440 one is higher quality, and not just blown up... I can see more details on her skin and hairline for example. It also doesn't seem to be AI enhanced.

Mar 13, 2022 - edited Mar 13, 2022 - permalink

My upload (1080) was merged into this one, which is 1440:

But the only part that I can see which is significantly sharper, are the letters. But hey, I'm not here for letters 😉

Yeah no, there's a lot more fine detail in her skin and hair and such. I don't know if you're looking at them on your phone or not viewing them at the same full size or what, but I would have made the same decision with that merge.

I think whether the 1440p versions are actually better probably depends on the resolution of the original uploaded image. In some cases it just seems to be an internal upsizing by Instagram.

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