Travis, The big benefit of JPEG compression comes with YCbCr color space which I do not believe can be mixed with a 4 band RGBI product. So I'm not sure how one would do this. One could certainly put the NIR in a distinct directory in the GeoTIFF, but not many applications would know how to utilize that, and it would not appear as just a 4th band from the GDAL view of things.
In theory you could do BAND interleaved JPEG and compress each of the 4 bands separately but I do not think you get a great quality/compression result from this. I'm also curious if you were wanting to just do 8bit or 12/16bit? I would love to have a way of distributing 12/16 bit RGBI data with a good (gentle) lossy compression and good application compatibility in TIFF. Best regards, Frank On Fri, May 8, 2020 at 3:08 PM Travis Kirstine <traviskirst...@gmail.com> wrote: > Is it possible to create RGBI Cloud Optimized Tiffs with JPEG compression? > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/gdal-dev -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, warmer...@pobox.com light and sound - activate the windows | +1 650-701-7823 and watch the world go round - Rush | Geospatial Software Developer
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