Let's use the function name instead of `ccomp.pyx`. Perhaps something like:

"This function uses `skimage.morphology.label` to define unique objects, finds the convex hull of each using `convex_hull_image`, and combines these regions with logical OR. Be aware the convex hulls of unconnected objects may overlap in the result. If this is suspected, consider using `convex_hull_image` separately on individual objects."