[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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