Forum processes attached images... poorly

[duzenko]

I noticed that when I upload a compressed .png the uploaded file size is usually much bigger than the original.

Is there something we could do about it?

Here's an example.

Untitled.png.txt

[AluminumHaste]

Is it possible the forum is showing you the decompressed file size?

 

EDIT: nope, that's not the case, if I full screen the image and download it, it's twice the size in MB, but it's image size is smaller, so the forum is resizing and recompressing, but probably doing it as fastest path instead of smallest path.

[AluminumHaste]

The original image is 2137x1377 and 203 KB
The image on the forum is 1200x774 and 508 KB

[duzenko]

EDIT: nope, that's not the case, if I full screen the image and download it, it's twice the size in MB, but it's image size is smaller, so the forum is resizing and recompressing, but probably doing it as fastest path instead of smallest path.

Prompts the question: why recompress at all if the result is worse that the original?

[AluminumHaste]

It might be set up to save space by resizing attachments, but it's saving on processing times by using a fast compress path.

[Oktokolo]

The forum is oddly configured in other ways too. That it actually increases file size by shrinking the image is just the ironic icing on the cake.

Disabling processing of attachments in general and dropping the absurd restrictions on file size and type too would be a good thing to do. You can't even post an untouched game-generated screenshot or a small test case PK4 as it is configured now. I already saw a lot of bit-rot because of the resulting need to link to more or less shabby OCHs instead.

 

Also allowing to search for other terms without having to wait another ten seconds would probably change the search functionality to something that could actually be of use.

[duzenko]

It might be set up to save space by resizing attachments, but it's saving on processing times by using a fast compress path.

Supposedly, but what prevents it to compare the output size with the original and discard the bigger one?

[grml4d]

forum is fast with M$-ie11 but unreadable with Google-chrome ...Firefox is in the middle...