[GRASS-user] i.cluster and i.maxlik with grayscale image

[Markus Neteler]

On Thu, Jan 1, 2009 at 4:06 PM, Micha Silver <micha at arava.co.il> wrote:
> Happy New Year to all!

Happy New Year!

> I want to run some r.le analyses on rasters I will create from two

[please consider r.li which way faster]

> ortho-photo images. The newer ortho-photo is full color, so when importing
> into GRASS I get the three RGB bands. So I make an image group and subgroup
> with the three bands and I can do the clustering.  However The older image
> is a B/W tiff, so it becomes a single grayscale raster.  But the
> classification modules require a group with more than one band. What's the
> best way to handle this?

Note that the i.smap module also works with single-image groups.

What means "The older image" above? It's not entirely clear to me
what you plan to do.

Markus