diff --git a/modules/core/src/main/java/org/eclipse/imagen/InterpolationBicubic.java b/modules/core/src/main/java/org/eclipse/imagen/InterpolationBicubic.java
index 1ec5145..523834e 100644
--- a/modules/core/src/main/java/org/eclipse/imagen/InterpolationBicubic.java
+++ b/modules/core/src/main/java/org/eclipse/imagen/InterpolationBicubic.java
@@ -94,7 +94,7 @@
  */
 public final class InterpolationBicubic extends InterpolationTable {
 
-    private static final int PRECISION_BITS = 8;
+    private static final int PRECISION_BITS = 12;
 
     private static float[] dataHelper(int subsampleBits) {
 
diff --git a/modules/core/src/main/java/org/eclipse/imagen/InterpolationBicubic2.java b/modules/core/src/main/java/org/eclipse/imagen/InterpolationBicubic2.java
index 273a07e..679f1c1 100644
--- a/modules/core/src/main/java/org/eclipse/imagen/InterpolationBicubic2.java
+++ b/modules/core/src/main/java/org/eclipse/imagen/InterpolationBicubic2.java
@@ -95,7 +95,7 @@
  */
 public final class InterpolationBicubic2 extends InterpolationTable {
 
-    private static final int PRECISION_BITS = 8;
+    private static final int PRECISION_BITS = 12;
 
     private static float[] dataHelper(int subsampleBits) {
 
diff --git a/modules/core/src/main/java/org/eclipse/imagen/media/opimage/AffineBicubicOpImage.java b/modules/core/src/main/java/org/eclipse/imagen/media/opimage/AffineBicubicOpImage.java
index de1ac1d..8fc427b 100644
--- a/modules/core/src/main/java/org/eclipse/imagen/media/opimage/AffineBicubicOpImage.java
+++ b/modules/core/src/main/java/org/eclipse/imagen/media/opimage/AffineBicubicOpImage.java
@@ -320,7 +320,7 @@ private void byteLoop(RasterAccessor src,
                         float_fracx = fracx;
                         float_fracy = fracy;
                         frac_xx = float_fracx * (1.0F - float_fracx);
-                        frac_yy = float_fracx * (1.0F - float_fracy);
+                        frac_yy = float_fracy * (1.0F - float_fracy);
 
                         s0 = s00 + ((s10 - s00) * float_fracx);
                         s1 = s01 + ((s11 - s01) * float_fracx);
@@ -584,7 +584,7 @@ private void intLoop(RasterAccessor src,
                         float_fracx = fracx;
                         float_fracy = fracy;
                         frac_xx = float_fracx * (1.0F - float_fracx);
-                        frac_yy = float_fracx * (1.0F - float_fracy);
+                        frac_yy = float_fracy * (1.0F - float_fracy);
 
                         s0 = s00 + ((s10 - s00) * float_fracx);
                         s1 = s01 + ((s11 - s01) * float_fracx);
@@ -850,7 +850,7 @@ private void shortLoop(RasterAccessor src,
                         float_fracx = fracx;
                         float_fracy = fracy;
                         frac_xx = float_fracx * (1.0F - float_fracx);
-                        frac_yy = float_fracx * (1.0F - float_fracy);
+                        frac_yy = float_fracy * (1.0F - float_fracy);
 
                         s0 = s00 + ((s10 - s00) * float_fracx);
                         s1 = s01 + ((s11 - s01) * float_fracx);
@@ -1115,7 +1115,7 @@ private void ushortLoop(RasterAccessor src,
                         float_fracx = fracx;
                         float_fracy = fracy;
                         frac_xx = float_fracx * (1.0F - float_fracx);
-                        frac_yy = float_fracx * (1.0F - float_fracy);
+                        frac_yy = float_fracy * (1.0F - float_fracy);
 
                         s0 = s00 + ((s10 - s00) * float_fracx);
                         s1 = s01 + ((s11 - s01) * float_fracx);
@@ -1379,7 +1379,7 @@ private void floatLoop(RasterAccessor src,
                         float_fracx = fracx;
                         float_fracy = fracy;
                         frac_xx = float_fracx * (1.0F - float_fracx);
-                        frac_yy = float_fracx * (1.0F - float_fracy);
+                        frac_yy = float_fracy * (1.0F - float_fracy);
 
                         s0 = s00 + ((s10 - s00) * float_fracx);
                         s1 = s01 + ((s11 - s01) * float_fracx);
@@ -1630,7 +1630,7 @@ private void doubleLoop(RasterAccessor src,
                         float_fracx = fracx;
                         float_fracy = fracy;
                         frac_xx = float_fracx * (1.0F - float_fracx);
-                        frac_yy = float_fracx * (1.0F - float_fracy);
+                        frac_yy = float_fracy * (1.0F - float_fracy);
 
                         s0 = s00 + ((s10 - s00) * float_fracx);
                         s1 = s01 + ((s11 - s01) * float_fracx);