[gdal-dev] 8 bit or 24 bit

[Frank Warmerdam]

jor sion wrote:
> Hi,
>  
> How to judge an image in hdf files is 8 bit or 24 bit?

Jor,

Check the number of bands with GDALDataset::GetRasterCount().  If this is
three, then it is likely what you call 24bit,and if it is 1 then it is
likely 8bit.

Best regards,
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