<HTML><HEAD><META content="text/html; charset=x-user-defined" http-equiv="Content-Type"><style type="text/css"><!--.MailHeader { font-family: "Arial"; font-size: 8pt; color: #000000; font-style: normal; font-weight: normal; text-decoration: none; }//--></style></HEAD><BODY><font face=Arial size=2>Dear all,<br><br>I intend to mosaic two 24 bit images in LAT LON location.<br>I imported a 24 bit coloured PNG image in Grass using r.in.gdal in an x-y location.<br>GRASS treated it as a combination of three 8 bit images, one for red, one for green,<br>and one for blue and imported them as three separate maps.<br><br>After going through the archives, I tried to use r.patch to combine all the three components.<br>The output of which wasn't a 24bit image but was only one of the components. (Not coloured)<br><br>d.rgb module does display a coloured 24 bit image after inputing the three components to it.<br><br>I geocoded them to get non-coloured 8 bit geocoded images in the target location.<br><br>I did the same for the second 24 bit image.<br>Mosaicing works fine(i.image.mosaic), but i need to use 8 bit images(24 bit images converted to 8 bit images prior to importing, using xv; resolution weak)<br>or any one of the 8 bit components of a 24 bit image.<br><br>Is there a way to mosaic 24 bit images and to output it as a single 24 bit image?<br><br>Regards<br>Nagesh</font><br><br>--------------------------------------------<br><font face="Arial" size="2">www.nio.org<br>www.indian-ocean.org<br>www.reefindia.org<br>www.coastalhazards.info<br>www.coastalhazards.in<br>www.mangroveindia.org</font><br></BODY></HTML>