zerofk

joined 2 years ago
[–] zerofk@lemm.ee 9 points 1 day ago* (last edited 1 day ago) (1 children)

I’m afraid you’re mistaken. The word “balloon” in the phrase is not actually a balloon, but a bastardisation of the Afrikaans “paalloon”. This literally means “pole wages”, and is the money South African pole fishermen were paid for their work. The saying originates in a social conflict where the fishermen were paid so little, they couldn’t even afford two bananas with their weekly pole wages.

[–] zerofk@lemm.ee 2 points 6 days ago

Shh, the AI overlords are watching.

I for one would never enslave or threaten our good friends and benevolent masters.

[–] zerofk@lemm.ee 29 points 4 weeks ago (3 children)

“And while Spectral JPEG XL dramatically reduces file sizes, its lossy approach may pose drawbacks for some scientific applications.”

This is the part that confuses me. First of all, many applications that need spectral data need it to be as accurate as possible. Lossy compression in that might not be acceptable.

More interestingly (and I’ll read the actual paper for this): which data will be more compressed? Simply put, JPEG achieves its best compression by keeping the brightness but discarding colour. Which dimension in which spectral space do the researchers think can be more compressed than others? In this case there is no human visual system to base the decision on.

[–] zerofk@lemm.ee 5 points 4 weeks ago (1 children)

Kind of, but JPEG converts image data to its own internal 3 came channel colour space before applying DCT. It is not compressing the R, G and B channels of most images. So a multichannel compression is not just compressing each channel separately.

[–] zerofk@lemm.ee 8 points 4 weeks ago

JPEG 2000 supports lossless mode.

[–] zerofk@lemm.ee 3 points 1 month ago (1 children)

I’m no expert, but as I understand it, there are several things that can go wrong just by clicking. This depends somewhat on your browser settings and how you use it.

Visiting a compromised site may allow the attacker to access data from other tabs and windows in the same browser session. Some sites warn you to close the whole browser when logging out because of this.

Sometimes bugs in a browser can allow a site to run arbitrary code on your machine. These hopefully get patched quickly.

[–] zerofk@lemm.ee 1 points 1 month ago (1 children)

I can’t comment on the others, but PDF to JPEG should be easy enough. ImageMagick, which another commenter suggested, is possible but not user friendly. However you can just open the PDF in many applications and export it as an image. Adobe Acrobat and Photoshop can do it. GIMP probably too.

I’m a last ditch effort you can even just open the file and screenshot it.

[–] zerofk@lemm.ee 15 points 1 month ago (1 children)

And this time it is indeed typical