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Bleh, and I was just up until 1am last night reading about black-and-white PDF compression schemes for my Kobo :) Technical knowledge obsoletes so fast. (Well,
by perihelions 3y ago
Bleh, and I was just up until 1am last night reading about black-and-white PDF compression schemes for my Kobo :) Technical knowledge obsoletes so fast.
(Well, maybe not that fast: ImageMagick's best-performing monochrome scheme is, apparently, one that was standardized for literal fax machines in the 1980's [0]. A very basic one called "Group 4").
[0] https://en.wikipedia.org/wiki/Fax#Compression https://en.wikipedia.org/wiki/Fax#Compression
- swsieber 3y agoMmm... I patched a fax4 decoder for rust the other day. It's an interesting format. But amazing really. It's still widely used the mortgage industry, specifically the land record systems.