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translate alpha band to mask when output compression is set to JPEG #188

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vincentsarago opened this issue Apr 28, 2021 · 0 comments · Fixed by #196

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vincentsarago commented Apr 28, 2021

As GDAL COG driver

if not already done, and also takes care of morphing the input dataset into the expected form when using some compression types (for example a RGBA dataset will be transparently converted to a RGB+mask dataset when selecting JPEG compression

ref: https://gdal.org/drivers/raster/cog.html#raster-cog

vincentsarago mentioned this issue

materialize nodata/alpha to mask when using JPEG #196

Merged

vincentsarago closed this as completed in #196

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