<div dir="ltr">Ciao Umberto, <div><br></div><div>AFAIK, classification is multivariate on its statistical basis, so that's why it will only take a group as input. If you only have one band, you may want to extract some information from it, for example by using r.texture module [1]. With those resulting new bands and the original one you can create then a group and perform the classification you prefer.</div><div><br></div><div>HTH! Cheers, </div><div> </div><div>Vero </div><div><br></div><div>[1] <a href="https://grass.osgeo.org/grass71/manuals/r.texture.html">https://grass.osgeo.org/grass71/manuals/r.texture.html</a></div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-10-08 10:53 GMT-03:00 umberto.minora <span dir="ltr"><<a href="mailto:umberto.minora@unimi.it" target="_blank">umberto.minora@unimi.it</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I'd like to use i.class and i.maxlik to perform a supervised classification<br>
of my image. However, it seems i.class only accepts image gropous with more<br>
than one band. Is there a way or an alternative I can perform such analysis<br>
with a single band? Thanks in advance.<br>
<br>
<br>
<br>
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