It's indeed used in slide imaging fairly commonly, but with "non-conforming" TIFFtags (33003 and 33005 instead of 34712), and essentially to Leonard's point... why? It's a historical artifact from 20-year-old CPUs: the tradeoff here is essentially a Gaussian pyramid for speed vs a Laplacian pyramid for compression.
JPEG 2000 pyramid support is actually quite fabulous, to the point of "pyramidal is what JPEG 2000 is, all the way through". Its browser compatibility is quite a bit less so... Kemp Watson On Mon, Apr 4, 2022 at 10:30 AM <[email protected]> wrote: > Tiled pyramidal TIFF, with jp2k compression for tiles, is quite > commonly used for slide imaging. > > jp2k format pyramid support is not great, unfortunately. > > > On Mon, 4 Apr 2022 at 14:00, Leonard Rosenthol via Tiff > <[email protected]> wrote: > > > > Just out of curiosity, why would you want to do that? > > > > > > > > JPEG2000 offers it own, ISO standardized, image file format container. > What is the benefit of putting JP2K compression into TIFF? Are you > thinking about the lossy or lossless options? > > > > > > > > Leonard > > > > > > > > From: Tiff <[email protected]> on behalf of miguel medalha < > [email protected]> > > Date: Friday, April 1, 2022 at 2:35 PM > > To: [email protected] <[email protected]> > > Subject: [Tiff] JPEG2000 support > > > > Hello > > > > Are there any plans to include JPEG2000 compression (OpenJPEG, for > example)? > > > > Thank you. > > > > > > _______________________________________________ > > Tiff mailing list > > [email protected] > > > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.osgeo.org%2Fmailman%2Flistinfo%2Ftiff&data=04%7C01%7Clrosenth%40adobe.com%7Cd750f4a2f73848116e3708da140e5427%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C637844349171274919%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=9sYLNNJHZSTHJZ21DUdCeVucOLtsEnHUKl%2FNRwlul6I%3D&reserved=0 > > > > _______________________________________________ > > Tiff mailing list > > [email protected] > > https://lists.osgeo.org/mailman/listinfo/tiff > _______________________________________________ > Tiff mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/tiff >
_______________________________________________ Tiff mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/tiff
