[xiph-commits] r12393 - trunk/sushivision

[xiphmont at svn.xiph.org]

Author: xiphmont
Date: 2007-01-29 14:37:46 -0800 (Mon, 29 Jan 2007)
New Revision: 12393

Modified:
   trunk/sushivision/panel-2d.c
Log:
Small biasing fix.  Still need to make test example for dicrete;
verify scaling fenceposts/alignment is correct.




Modified: trunk/sushivision/panel-2d.c
===================================================================
--- trunk/sushivision/panel-2d.c	2007-01-29 22:26:31 UTC (rev 12392)
+++ trunk/sushivision/panel-2d.c	2007-01-29 22:37:46 UTC (rev 12393)
@@ -193,7 +193,7 @@
   if(pw != dw){
     /* resampled computation */
     float scaledel = scalespace_scaledel(&datax,&panelx);
-    float outdel = scalespace_pixel(&panelx,scalespace_value(&datax,0));
+    float outdel = scalespace_pixel(&panelx,scalespace_value(&datax,-.5))+.5;
     int outbin = floor(outdel);
     outdel -= outbin; 
     
@@ -338,7 +338,7 @@
     /* this is a resampling population */
 
     float scaledel = scalespace_scaledel(&datay,&panely);
-    float outdel = ph-scalespace_pixel(&panely,scalespace_value(&datay,dh-y));
+    float outdel = ph-scalespace_pixel(&panely,scalespace_value(&datay,dh-(y+.5)))+.5;
     int outbin = floor(outdel);
     float outdel2 = (outdel-outbin) + scaledel;
     outdel -= outbin;