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Discord lowers free upload limit to 10MB: “Storage management is expensive” (www.dexerto.com)

submitted 2 months ago by moe90@feddit.nl to c/technology@lemmy.ml

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[–] tetris11@lemmy.ml 0 points 2 months ago* (last edited 2 months ago) (2 children)

But that's patently untrue: take this 10 MB example TIFF file as an example.

PNG Compression, max compress (=quality 9):

convert file_example_TIFF_10MB.tiff -quality 9 test.png

JPG Encoding, 99% quality (=quality 99):

convert file_example_TIFF_10MB.tiff -quality 99 test.jpg

Final file size comparison:

9.7M Sep  5 13:21 file_example_TIFF_10MB.tiff
1.7M Sep  5 13:22 test.jpg
2.5M Sep  5 13:22 test.png

PNG is significantly larger, and difference in quality between them is negligible

[–] B0rax@feddit.org 5 points 2 months ago

Dude. Did you even read what I wrote? PNG is bad for photos. Your example is a photo. Go ahead and try the same with a screenshot with text and menus showing.

[–] ms_lane@lemmy.world 3 points 2 months ago (1 children)

png - jpg

156K Sep  5 23:06 Screenshot_20240905_230459.jpg
137K Sep  5 23:05 Screenshot_20240905_230459.png

jpg with 80% compression, via krita.

As B0rax said, for screenshots, png is better - it can represent line graphics and text more efficiently.

[–] tetris11@lemmy.ml 1 points 2 months ago

Thanks for this. Still, I would be curious to see this for a 4K level image. Also I wonder if your screenshot tool did a bitmap copy of the screen or intrinsically converted it to PNG first before pasting it into your paint editor.