[GRASS-SVN] r71023 - grass-addons/grass7/imagery/i.variance

[svn_grass at osgeo.org]

Author: mlennert
Date: 2017-05-05 01:36:41 -0700 (Fri, 05 May 2017)
New Revision: 71023

Modified:
   grass-addons/grass7/imagery/i.variance/i.variance.html
Log:
i.variance: added interpretation of example results

Modified: grass-addons/grass7/imagery/i.variance/i.variance.html
===================================================================
--- grass-addons/grass7/imagery/i.variance/i.variance.html	2017-05-05 07:52:09 UTC (rev 71022)
+++ grass-addons/grass7/imagery/i.variance/i.variance.html	2017-05-05 08:36:41 UTC (rev 71023)
@@ -78,7 +78,7 @@
 
 <center>
 	        <img src="i_variance_region1.png" border="1"><br>
-		Image of region 1 and plot of variance against resolution
+		Image of region 1 and plot of variance against resolution.<br>The highest peak at ca. 15m corresponds to the average distance between fairways. Local maxima between 40m and 50m correspond to the average width of fairways.
 </center>
 
 <h3>Region 2</h3>
@@ -106,7 +106,7 @@
 
 <center>
 	        <img src="i_variance_region2.png" border="1"><br>
-		Image of region 2 and plot of variance against resolution
+		Image of region 2 and plot of variance against resolution<br>The abundance of small objects leads to a peak close to the 1m original resolution. The plateau between 5m and 10m corresponds to the houses. Local maxima between 30m and 50m seem to correspond to the larger houses and higher vegetation areas.
 </center>
 
 <h3>Region 3</h3>
@@ -134,7 +134,7 @@
 
 <center>
 	        <img src="i_variance_region3.png" border="1"><br>
-		Image of region 3 and plot of variance against resolution
+		Image of region 3 and plot of variance against resolution<br>The overall peak beyond 30m corresponds to the width of fields.
 </center>
 
 <h2>REFERENCES</h2>