Index: trunk/psLib/src/math/psPolynomialUtils.c
===================================================================
--- trunk/psLib/src/math/psPolynomialUtils.c	(revision 15254)
+++ trunk/psLib/src/math/psPolynomialUtils.c	(revision 19844)
@@ -138,4 +138,5 @@
 // XXX add a mask, fit only the valid pixels
 // XXX determine the errors, and propagate to the output of psImageBicubeMin
+// XXX x,y are the image pixel index, but the fit is implied for the image pixel coordinates (0.5,0.5 center)
 psPolynomial2D *psImageBicubeFit(const psImage *image, int x, int y)
 {