[osgeo4w-dev] [osgeo4w] #792: GeoTIFF 12 bit jpeg compression not supported
OSGeo4W
trac_osgeo4w at osgeo.org
Mon May 22 06:26:46 PDT 2023
#792: GeoTIFF 12 bit jpeg compression not supported
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Reporter: dugalh | Owner: osgeo4w-dev@…
Type: defect | Status: new
Priority: normal | Component: Package
Version: | Resolution:
Keywords: 12 bit jpeg geotiff |
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Comment (by jratike80):
The requirements are documented in
https://gdal.org/drivers/raster/gtiff.html
> Starting with GDAL 3.4, if GDAL is built with its internal libtiff, read
and write support for JPEG-in-TIFF compressed images with 12-bit sample is
enabled by default (if JPEG support is also enabled), using GDAL internal
libjpeg (based on IJG libjpeg-6b, with additional changes for 12-bit
sample support). Support for JPEG with 12-bit sample is independent of
whether 8-bit JPEG support is enabled through internal IJG libjpeg-6b or
external libjpeg (like libjpeg-turbo)
--
Ticket URL: <https://trac.osgeo.org/osgeo4w/ticket/792#comment:1>
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