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<P><FONT SIZE=2>Hi list,<BR>
<BR>
I've been trying to run a r.texture filter on a map but I constantly get the error:<BR>
<BR>
ERROR: Negative or no data pixel found. This module is not yet able to<BR>
process no data holes in a map, please fill with r.fillnulls or<BR>
other algorithms<BR>
<BR>
However, I ran r.null to set all NULL values to 0 and r.categories also showed no negative values afterwards.<BR>
<BR>
What could be the cause of this error.<BR>
<BR>
I also rescaled the categories between 0 and 100.<BR>
<BR>
After all this the ERROR is still their.<BR>
<BR>
Furthermore, If I run a 3x3 r.neighbourhood average moving window analysis on this map, r.texture runs fine on the result of r.neighbourhood.<BR>
<BR>
I really don't know what causes this inconsistent behaviour. Any ideas what causes this error?<BR>
<BR>
Kind regards,<BR>
Koen</FONT>
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