Export label image with spot IDs

[tischi]

@tinevez

Working on https://forum.image.sc/t/trackmate-dealing-with-masks/68004

I guess this needs updating?

/**
     * Creates a new label {@link Img} of {@link UnsignedShortType} where the
     * spots of the specified model are painted as ellipsoids taken from their
     * shape, with their track ID as pixel value.
     * 

Because in the case of masks they are not painted as ellipsoids but as the actual masks?

[imagesc-bot]

This issue has been mentioned on Image.sc Forum. There might be relevant details there:

https://forum.image.sc/t/trackmate-dealing-with-masks/68004/5

[tischi]

Second question: In your repo is that some "run" method that launches ImageJ such that I could test what I am developing? Even better would be some script that already does some tracking such that I immediately end up at the export UI. Or how would you do this (i.e. develop such a new feature)?

[tischi]

Third question: Should I develop against master or some other branch?

[tischi]

Fourth question:

Should we add a checkbox here:

[ ] Use spot IDs as labels

[tinevez]

Fixed with https://github.com/fiji/TrackMate/commit/e13e6198437f3aec3d70270485a0c27e6b4b12f2