[gdal-dev] MrSID Color Spaces

[Even Rouault]

On mardi 16 mai 2017 10:13:52 CEST Martin Chapman wrote:
> Even or Frank or whoever it may concern,
> 
> 
> 
> Not a big deal but I was trying to open a JP2 file using the MrSID driver
> and noticed that the mrsiddataset.cpp does not identify the color spaces
> MRSID_LTI_COLORSPACE_GRAYSCALEA and MRSID_LTI_COLORSPACE_GRAYSCALEA_PM
> configurations in the MrSIDRasterBand() constructor.  I happen to have a two
> band JP2 that is a grayscale image with an alpha channel.   The color
> interpretation comes back as GCI_undefined.  Not that important but if you
> ever feel like fixing it, that would be nice.
> 
> 
> 
> The fix would go somewhere close to line 485 in mrsiddataset.cpp.  Basically
> just need to add a couple of more case statements in the switch statement.

Martin,

Seems you are closed to a patch. Can you provide it ?

Even

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