[gnuastro-devel] [bug #54579] NoiseChisel failure on pseudo-detections when all dataset is negative

[Mohammad Akhlaghi]

URL:
  <http://savannah.gnu.org/bugs/?54579>

                 Summary: NoiseChisel failure on pseudo-detections when all
dataset is negative
                 Project: GNU Astronomy Utilities
            Submitted by: makhlaghi
            Submitted on: Mon 27 Aug 2018 06:32:07 PM CEST
                Category: NoiseChisel
                Severity: 3 - Normal
              Item Group: Crash
                  Status: In Progress
                 Privacy: Public
             Assigned to: makhlaghi
             Open/Closed: Open
         Discussion Lock: Any

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Details:

When the whole data set is negative (due to some prior analysis for example
when the image is inverted), NoiseChisel isn't able to find any
pseudo-detections. This is because it doesn't so sky subtraction in the
pseudo-detection S/N measurement step. To fix this problem, I am busy
implementing sky subtraction in that step now.

This bug was found while testing on a dataset given by Gaspar Galaz.




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