[Gdal-dev] what is "band configurations"?

[Maciej Sieczka]

Frank Warmerdam wrote:
> Maciej Sieczka wrote:
>> Hi
>>
>> Regarding GDAL's JPEG documenation [1] - what is the "band
>> configurations" mentioned there?
> 
> Maciek,
> 
> I assume you are referring to this?
> 
>   file:///home/warmerda/gdal/html/frmt_jpeg.html

Yes. I failed to paste that link.

> It states "Only Byte band types are supported, and only 1 and 3 band
> configurations." in the Creation Options discussion.  This means you can
> only create files with one band (treated as greyscale) and three bands
> (treated as RGB).  Does that answer your question?

Yes. Thanks. Could this extended info be added to JPEG spec as well as
to JPEG section in GeoTIFF spec?

Maciek