I noticed this a few times (not sure if there's more of such) but some pictures are uploaded in a blown-up resolution. Is it an uploading bug or are people trying too hard to make it an oversized wallpaper?

post #94824
This is the latest example. There was another by tojo-the-thief but it has been removed.

Any thoughts?

I got nothing. I don't think there's anything wrong with the upload process that would increase the size of images, so it's my guess that the image was resized by the uploader. I guess that's "TRR"'s luxury, since they are probably "The Red Raptor", who apparently commissioned the work.

Myself, I would have uploaded it in its original resolution, where it looks best.

Well, okay, myself, I wouldn't even have commissioned a pic like that from the start, let alone uploaded it. But I'm on a site known predominantly for its porn; I don't get the luxury of questioning others' tastes. I've totally digressed by now, though.

That image you linked is 1200x1500. That's not blown up at all. I've seen images that are like 5000x6500 on Danbooru. All you need to do is go to User Settings and check the box that says "Show Image Samples". Then no image will appear horrendously huge and slow your computer.

Ultima_Weapon said:
That image you linked is 1200x1500. That's not blown up at all. I've seen images that are like 5000x6500 on Danbooru. All you need to do is go to User Settings and check the box that says "Show Image Samples". Then no image will appear horrendously huge and slow your computer.

Are you even getting what they're saying? The end total size isn't the point, the point is that the image was scaled up from the original -- adding no actual quality, merely wasting filesize and making things look shittier when they're auto-scaled down again to fit the screen.

Also, the 'image samples' seem to be at sort-of-low size, and are broken on like 75% of images right now.

[EDIT]
Interestingly enough, in that particular case it looks like some sort of edge-smoothing method was applied to some parts of the linework, making them at least passable at that resolution... But some parts are clearly half-res and look like they were sharpened down to like 25% range (pre-scaling), making the edges look all aliased and jaggedy... Not sure what's up with that. <Shrug>

It looks fine to me. And if there is an original, wouldn't it make sense to add it as a parent so others can see exactly what he's talking about?

In this case the original hasn't been posted here yet, but it's linked as the source. Just look at the linework and compare. Some spots appear to have been re-touched, but much of it (especially noticeable on the lower part of the right leg) have quite distinct scaling artifacts (amplified by the apparent lack of anti-aliasing on the lines there).

Ultima_Weapon said:
That image you linked is 1200x1500. That's not blown up at all. I've seen images that are like 5000x6500 on Danbooru. All you need to do is go to User Settings and check the box that says "Show Image Samples". Then no image will appear horrendously huge and slow your computer.

post #69164

k... maybe I can help here...

go to post #94824

also, load up the sourcem which is here: http://www.furaffinity.net/full/4001940/

The original is 600x750
post #94824 is 1200x1500, or 2x the size of the original.

An examination of post #94824 seems to suggest that someone took the original 600x750 and resized the image to be larger with an editing program. This is very different from the artist taking the REAL original of the art (the artist may have worked at 600x750, but let's pretend that the .psd file was actually 2400x3000.) and resizing it do the 1200x 1500 size, as resizing smaller tends to produce a higher-quality file, while blowing up a small image to a larger size leaves jaggedies and produces a lower quality image.

the OP wonders if the poster purposefully resized the file, or if there might be an uploading bug, as it's not the first time they've noticed an issue of this exactly nature, however, the other example they could point specifically at has been deleted. He seems also to suggest that there are a number of others like this, hense the concern over a bug of some sort.

He's NOT complaining about size, he doesn't need to be shown the 'resize image' button, he's drawing attention to something that MAY be a bug, which is entierly possible, seeing as how e621 has undergone some changes recently.

Acct0283476 said: [EDIT]
Interestingly enough, in that particular case it looks like some sort of edge-smoothing method was applied to some parts of the linework, making them at least passable at that resolution... But some parts are clearly half-res and look like they were sharpened down to like 25% range (pre-scaling), making the edges look all aliased and jaggedy... Not sure what's up with that. <Shrug>

I noticed that too. I'm not for sure how graphics programs do this sort of stuff, but could this be a result of using different methods to resize the image? Obviously, e621 doesn't use any of these programs, but would irfanview, photoshop, paintshop pro, etc all return the same image when resizing an image like this?

SnowWolf said:
I noticed that too. I'm not for sure how graphics programs do this sort of stuff, but could this be a result of using different methods to resize the image? Obviously, e621 doesn't use any of these programs, but would irfanview, photoshop, paintshop pro, etc all return the same image when resizing an image like this?

While IrfanView and other image manipulation tools like ACDSee or such have a large variety of resampling options available, most image-editing programs use bilinear or bicubic filtering.

I'd guess the image in question was scaled up with bicubic filtering, and then they hand-smoothed / redrew the edges on some of the linework. I doubt any automated filter was involved, because (in the cases where it's high-contrast enough to see) it looks like all the smooth shading / coloring is untouched beyond the initial scaling artifacts. Aside from that, it looks like a sort-of-random 25% of the lines were picked for cleanup, and the rest were left in their original (somewhat varying) states. :/

Anyways, to answer the OP: People trying too hard would be my guess.

That's just kind of terrifying, as answers go. They probably realized what a big job they had ahead of 'em and called it quits, if theory is reality.

(Thanks, BTW, for a good solid answer that sated my curiosity, regarding resampling methods :D!)

nme22 said:
post #69164

Ultima_Weapon said:
All you need to do is go to User Settings and check the box that says "Show Image Samples". Then no image will appear horrendously huge and slow your computer.

...still missing the original point :P it's not about the display size. It was a potential bug report :p

It's not really a bug. It's just that for some reason, people like to scale up images and re-upload them because they think that it makes it look better, even though it doesn't.