Requested feature overview description.

Detect the full resolution of the image on the upload page.

You could put it to the left of where the #whitelist-warning goes.

Example:

"W: 1280 × H: 720"

Why would it be useful?

Prevent user errors. Viewing the Image Info doesn't tell you the actual resolution of the image you are uploading, at least on Firefox.

What part(s) of the site page(s) are affected?

Upload page: https://e621.net/post/upload

+1. Sometimes when I jump around the various pages an artist uploads to, I wonder if I actually grabbed the highest resolution. Some pages list their resolutions on them (ie, DeviantArt's download button), but a few do not. Just copy-pasting different direct sources would quickly allow me to compare sizes in a more efficient manner than having to view image info and then click the image direct url (my browser likes to default to the background greyness as image info)

+1 I hate it when I spend a lot of time adding all the tags to an image, just to find out it exceeds the resolution limits.

JAKXXX3 said:
+1 I hate it when I spend a lot of time adding all the tags to an image, just to find out it exceeds the resolution limits.

Resolution limit? You find images larger than 25000x25000, 100 MB often?

Mario69 said:
Resolution limit? You find images larger than 25000x25000, 100 MB often?

Usually really tall comics, like post #1022218 and post #1022219, which was just one comic page which I had to split into two.

JAKXXX3 said:
+1 I hate it when I spend a lot of time adding all the tags to an image, just to find out it exceeds the resolution limits.

Ok. To add to the feature, if the image exceeds resolution or size limits, a warning should be given somewhere. That way the uploader doesn't waste time filling out the other fields.

Lance_Armstrong said:
Ok. To add to the feature, if the image exceeds resolution or size limits, a warning should be given somewhere. That way the uploader doesn't waste time filling out the other fields.

That'd be neat.

It'd be nice if the system could auto-tag the detected resolution upon upload as well.

Dogenzaka said:
It'd be nice if the system could auto-tag the detected resolution upon upload as well.

Which tags? I can think of a few, like the ratio ones (16:9, 4:3) and the size ones (low_res, hi_res).

I'd imagine that making the server run these checks for every single upload could potentially lead to strain or bandwidth issues on the server. Instead, a script or a bot could run intermittently and automatically add such tags using calculations based on post metadata. That would reduce the server's workload for each individual upload, at least.

JAKXXX3 said:
Which tags? I can think of a few, like the ratio ones (16:9, 4:3) and the size ones (low_res, hi_res).

I'd imagine that making the server run these checks for every single upload could potentially lead to strain or bandwidth issues on the server. Instead, a script or a bot could run intermittently and automatically add such tags using calculations based on post metadata. That would reduce the server's workload for each individual upload, at least.

It can be done client side at the moment the image's resolution is detected, because finding the ratio or resolution tag is simple math.

It would be really cool if these tags were handled automatically and locked by the server on upload. We are talking about very few CPU cycles too, in my estimation. Completely possible.

+1 bumping thread for auto-tagging resolution and stuff like hi_res. saves a lot of manual work.

in addition to client-side auto-tagging, a bot can go through every image like what Wikipedia has, and autocorrect misapplied tags (such as hi_res being applied to a not-high-res image).