Example of the enhancement technique described in Sect. 2.2 for NGC 4414. The field of view for each panel is ~30 × 30 arcmin (north is up, east to the left). Left panel: Original SDSS color-composite image from the public archive. Middle panel: Final resultof our image processing with an inverted, stretched grayscale showing the extent of a conspicuous shell of debris southwest of the central galaxy. For illustrative purposes, we have added a color inset of the disk of the galaxy and any stars or other objects that are masked in our analysis. Right panel: Same field taken from the STSS (Martinez-Delgado et al., in prep.), showing the same overall morphology of this substructure. Credit right panel image: Adam Block.