[gdal-dev] Images/datasets with bands with different properties

[David Strip]

I was looking at the API and it appears, that at least in principle a 
multi-band dataset (and hence the associated input file) could have 
bands with different data types since the type is a property of the 
band, not the dataset. Does this actually happen "in the wild"? If so, 
what file types support this scenario?

Likewise, the bands apparently can have different size rasters (in terms 
of pixel counts), since the raster size is a property of the band. On 
the other hand, the dataset also has a raster size, as well as the 
overall properties of the raster, such as the geo-location of the origin 
and the size of the pixels. If the band doesn't match the dataset 
properties, what do we know about origin, pixel size, etc? If these 
situations don't exist in real datasets, then I'm not particularly 
concerned. In fact, I'd be happiest if someone could tell me to just 
ignore these issues because they don't happen in real life.