Fill holes in labels

[tischi]

@dlegland

For one of our projects it would be very useful to have a "Fill holes in labels" option.
Would that be within scope to add?

[dlegland]

Hi,
yes, could be a good idea, but there would be problems when some labels are enclosed into other labels... What behaviour would you expect in that case?

[tischi]

Hm, I guess I would expect that the outer label is filled until it hits the inner label, thus not changing the inner label. Essentially, I would say that the algorithm only is allowed to change the values of background (0) pixels.

[dlegland]

yes, sounds logical. However I am not sure this is that easy to implement (not straightforward to differentiate inner hole to non-inner background...).

[dlegland]

Implemented in a664ec1,
and released within MorphoLibJ 1.6.0.