Figure 4
Application of binary morphological operations on the initial spot masks: on the left a magnified fragment of frame 366 from dataset 1 (subset 1) containing the registered signal and an outline of an initial reflection mask drawn in black; on the right the same outline of the initial mask is drawn in dark grey; pixels remaining in the spot mask after erosion operations are drawn in blue; pixels added to the reflection mask after dilation operations are drawn in orange. Singular pixels included in the initial spot mask have been removed by the morphological operations. |