Fix store channel value in volume data

Author: nroduit

weasis-dicom/weasis-dicom-viewer2d/src/main/java/org/weasis/dicom/viewer2d/mpr/SplatContext.java

@@ -336,7 +336,7 @@ public <T extends Number, A> void normalize(Volume<T, A> volume) {
             } else {
               continue;
             }
-            volume.setElementInData(idx, volume.convertToGeneric(v / w));
+            volume.setChannelValue(x, y, z, c, volume.convertToGeneric(v / w));
           }
         }
       }