[GRASS-SVN] r48485 - grass-addons/grass7/imagery/i.points.auto
svn_grass at osgeo.org
svn_grass at osgeo.org
Mon Sep 26 23:50:15 EDT 2011
Author: hamish
Date: 2011-09-26 20:50:15 -0700 (Mon, 26 Sep 2011)
New Revision: 48485
Modified:
grass-addons/grass7/imagery/i.points.auto/Makefile
grass-addons/grass7/imagery/i.points.auto/cellhd.c
grass-addons/grass7/imagery/i.points.auto/creat_rand.c
grass-addons/grass7/imagery/i.points.auto/crs.c
grass-addons/grass7/imagery/i.points.auto/crs.h
grass-addons/grass7/imagery/i.points.auto/defs.h
grass-addons/grass7/imagery/i.points.auto/equ.c
grass-addons/grass7/imagery/i.points.auto/find_points.c
grass-addons/grass7/imagery/i.points.auto/globals.h
grass-addons/grass7/imagery/i.points.auto/group.c
grass-addons/grass7/imagery/i.points.auto/i.points.auto.html
grass-addons/grass7/imagery/i.points.auto/local_proto.h
grass-addons/grass7/imagery/i.points.auto/main.c
grass-addons/grass7/imagery/i.points.auto/overlap.c
grass-addons/grass7/imagery/i.points.auto/target.c
Log:
svn props; update help page
Property changes on: grass-addons/grass7/imagery/i.points.auto/Makefile
___________________________________________________________________
Added: svn:mime-type
+ text/x-makefile
Property changes on: grass-addons/grass7/imagery/i.points.auto/cellhd.c
___________________________________________________________________
Added: svn:mime-type
+ text/x-csrc
Property changes on: grass-addons/grass7/imagery/i.points.auto/creat_rand.c
___________________________________________________________________
Added: svn:mime-type
+ text/x-csrc
Added: svn:eol-style
+ native
Property changes on: grass-addons/grass7/imagery/i.points.auto/crs.c
___________________________________________________________________
Added: svn:mime-type
+ text/x-csrc
Added: svn:eol-style
+ native
Property changes on: grass-addons/grass7/imagery/i.points.auto/crs.h
___________________________________________________________________
Added: svn:mime-type
+ text/x-chdr
Added: svn:eol-style
+ native
Property changes on: grass-addons/grass7/imagery/i.points.auto/defs.h
___________________________________________________________________
Added: svn:mime-type
+ text/x-chdr
Property changes on: grass-addons/grass7/imagery/i.points.auto/equ.c
___________________________________________________________________
Added: svn:mime-type
+ text/x-csrc
Property changes on: grass-addons/grass7/imagery/i.points.auto/find_points.c
___________________________________________________________________
Added: svn:mime-type
+ text/x-csrc
Property changes on: grass-addons/grass7/imagery/i.points.auto/globals.h
___________________________________________________________________
Added: svn:mime-type
+ text/x-chdr
Property changes on: grass-addons/grass7/imagery/i.points.auto/group.c
___________________________________________________________________
Added: svn:mime-type
+ text/x-csrc
Modified: grass-addons/grass7/imagery/i.points.auto/i.points.auto.html
===================================================================
--- grass-addons/grass7/imagery/i.points.auto/i.points.auto.html 2011-09-26 21:11:44 UTC (rev 48484)
+++ grass-addons/grass7/imagery/i.points.auto/i.points.auto.html 2011-09-27 03:50:15 UTC (rev 48485)
@@ -1,33 +1,42 @@
<H2>DESCRIPTION</H2>
-<em>i.points.auto</em> tries to automatically generate the given number
-of new gound control points. It is recommended to use maps filtered with
-the filters DIVERSITY or STDDEV (of GRASS) with a window of 3x3 or 5x5
+<em>i.points.auto</em> tries to automatically generate a given number
+of new gound control points (GCPs) by matching the input map to a target
+map through FFT correlation. The goal of this computation is thus to
+enable automatic geocoding of imagery to a master image.
+
+
+<H2>NOTES</H2>
+
+It is recommended to use maps filtered with the DIVERSITY or STDDEV filters
+of the <em>r.neighbors</em> module, with a window size of 3x3 or 5x5
pixels. However, the algorithm sometimes works well also with the
-original maps.
+original maps. The produced GCPs can then be used on the original imagery.
<p>
The actual number of newly generated ground control points will likely
be less than the given maximum number of ground control points because
each generated point is filtered using its FFT correlation
-coefficient and optionally also by the given RMS threshold.
+coefficient, and optionally also by the given RMS threshold.
<p>
<em>i.points.auto</em> supports the usual transformation orders 1-3 and
requires the corresponding number of previously set ground control
points: 3 for order 1, 6 for order 2, 10 for order 3.
+
<H2>SEE ALSO</H2>
The GRASS 4 <em>
-<A HREF="http://grass.osgeo.org/gdp/imagery/imagery.ps.gz">Image
+<A HREF="http://grass.osgeo.org/gdp/imagery/grass4_image_processing.pdf">Image
Processing manual</A></EM>
<P>
<EM>
-<A HREF="g.mapsets.html">g.mapsets</A><br>
+<!-- why? <A HREF="g.mapsets.html">g.mapsets</A><br> -->
<A HREF="i.group.html">i.group</A><br>
<A HREF="i.rectify.html">i.rectify</A><br>
<A HREF="i.target.html">i.target</A><br>
-<A HREF="i.vpoints.html">i.vpoints</A><br>
+<A HREF="r.neighbors.html">r.neighbors</A><br>
+<!-- not in grass7 <A HREF="i.vpoints.html">i.vpoints</A><br> -->
<a href="wxGUI.GCP_Manager.html">Ground Control Point Manager</a>
</em>
@@ -37,4 +46,5 @@
Luca Miori<br>
Markus Metz
-<p><i>Last changed: $Date: 2006/06/22 07:46:46 $</i></p>
+<p>
+<i>Last changed: $Date$</i></p>
Property changes on: grass-addons/grass7/imagery/i.points.auto/i.points.auto.html
___________________________________________________________________
Added: svn:mime-type
+ text/html
Added: svn:keywords
+ Author Date Id
Added: svn:eol-style
+ native
Property changes on: grass-addons/grass7/imagery/i.points.auto/local_proto.h
___________________________________________________________________
Added: svn:mime-type
+ text/x-chdr
Property changes on: grass-addons/grass7/imagery/i.points.auto/main.c
___________________________________________________________________
Added: svn:mime-type
+ text/x-csrc
Property changes on: grass-addons/grass7/imagery/i.points.auto/overlap.c
___________________________________________________________________
Added: svn:mime-type
+ text/x-csrc
Added: svn:eol-style
+ native
Property changes on: grass-addons/grass7/imagery/i.points.auto/target.c
___________________________________________________________________
Added: svn:mime-type
+ text/x-csrc
More information about the grass-commit
mailing list