astromatic / sextractor

Extract catalogs of sources from astronomical images
http://astromatic.net/software/sextractor
GNU General Public License v3.0
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Numbers in segmentation image do not match numbers in catalog #66

Open jennamo opened 5 months ago

jennamo commented 5 months ago

Hi, I am running into an issue where object numbering is not consistent between the catalog and the segmentation image. For instance, in the segmentation image, multiple sources will be labeled with the same number, however in the catalog they have been deblended into multiple sources (each with their own associated number). This is problematic for me as I'd like to be able to use the catalog numbers to reference specific sources in the segmentation image. See catalog objects 19 and 20 in attached file (which are both labeled as 20 in the segmentation image). I am running SE 2.25.0.

My colleague ran SE 2.5.0 on the same files and was able to get consistent numbering between segmentation image and catalog.

se_test.zip