Have you seen the headline numbers on patent suit awards? Violating patents can run you 100s of millions of dollars -- not joking. There are whole businesses with winning patent cases as their sole aim.
You might naively think that any patents should have expired since its been more than 17 years since origination, but clever folks keep extending them with new versions, and the patent office just leaves it to the courts to settle. Not worth touching with a ten foot pole. On Sunday, March 2, 2025 at 3:33:14 AM UTC Gwyneth Llewelyn wrote: > I know this is an ancient discussion, but... aye, there is definitely > still interest in JPEG2000 after all these years, and there is still no > native Go library for them. > > It's not only DICOM medical imaging that uses JPEG2000. It's also things > like Second Life — where *all* textures are stored as JPEG2000 files. > JPEG2000 has this uncommon advantage of being able to store the same image > in different sizes, the smallest/lowest resolution first... which make them > ideal for virtual worlds where content is *not* downloaded in advance, > but rather via streaming. That way, a full scene can be rendered with an > approximation of the finished version very quickly, with all the low-rez > variations being downloaded in a pinch (JPEG2000's compression also helps a > lot), while the higher-rez versions can be downloaded slowly, as the user > manifests their interest in examining something in detail. > > Obviously, there are many ways of accomplishing the same results — storing > separate files for each dimension/resolution, for instance — but JPEG2000 > has the advantage of doing it all inside the *same* container. > > So, sure, it's still a very relevant format with plenty of niche > applications; a pity it's being left behind in favour of AVIF and > newer-generation solutions. I have no idea how you can replicate the same > in other types of containers, though. I can imagine that you *could*, in > theory, do it using Targa TGA extensions, or possibly even in TIFF — both > of wish also becoming obsolete very, very fast. > > JPEG2000 is something curious in the history of graphic file formats: it > addressed quite a lot of issues with existing contemporary formats, > introduced new forms of containers for images, and offered much higher > compression — even lossless compression — of higher-quality/resolution > images than the 'original' JPEG format. It's even supposed to support > animated frames, and who knows what else. Its biggest disadvantage, as > always, is related to the *legal* issues in encoding or decoding JPEG2000 > images by reverse-engineering the implementation used by the original > libraries — since they all rely on tons of patents from different companies > in the consortium.... > > Anyway, just my $.02: I suppose that this will *never* become a reality — > mostly because we have so many alternative formats already... > > — Gwyn > > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/golang-nuts/9a0368b1-e994-490d-885a-3f34c87f67c8n%40googlegroups.com.
