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

Matt Wilkie matt.wilkie at gov.yk.ca
Tue May 1 13:13:33 EDT 2007


>> I assume you are referring to this?
>>
>>   file:///home/warmerda/gdal/html/frmt_jpeg.html
> 
> Yes. I failed to paste that link.

ummm, how about http://www.gdal.org/frmt_jpeg.html :)

>> 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?

With regard to rewriting that page, balancing detail which will confuse 
against more information: The 1 or 3 band info is actually in there 
twice right now, which may have contributed to Maciej's original 
confusion. How about simply removing the second instance under "Creation 
Options", since the band configuration is not actually a -co anyway?

"
Creation Options

JPEG files are created using the "JPEG" driver code. JPEG file creation 
is implemented by the batch (CreateCopy) method.
"


cheers,

-- 
matt wilkie
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