| 15 | 15 | This image shows a mosaic of 20/22 inputs around the region of the reflection ghost visible in the mean image. Only two of these inputs contain this feature, so although it is obvious in the mean stack, it is largely removed in the ppStack result. We also have masks on this object, which helps rejection on most pixels, as shown by this image which is a mean combined, rejecting all input pixels that have any mask bit set. This is somewhat more conservative than ppStack, which allows "suspect" pixels to be considered for inclusion if they are consistent with the values from other inputs. |