taskGNU Astronomy Utilities - Tasks: task #14139, Set threshold for no erosion

 
 

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task #14139: Set threshold for no erosion

Submitted by:  Mohammad Akhlaghi <makhlaghi>
Submitted on:  Mon 29 Aug 2016 12:23:11 AM UTC  
 
Should Start On: Sun 28 Aug 2016 03:00:00 PM UTCShould be Finished on: Sun 28 Aug 2016 03:00:00 PM UTC
Category: NoiseChiselPriority: 7 - High
Item Group: EnhancementStatus: Done
Privacy: PublicPercent Complete: 100%
Assigned to: Mohammad Akhlaghi <makhlaghi>Open/Closed: Closed
Effort: 0.00

Mon 29 Aug 2016 01:30:51 PM UTC, comment #1:

This has been done and is now pushed to master.

Mohammad Akhlaghi <makhlaghi>
Project AdministratorIn charge of this item.
Mon 29 Aug 2016 12:23:11 AM UTC, original submission:

NoiseChisel's first operation after applying the quantile threshold is to erode those pixels above the threshold.

For large and diffuse objects this can be no problem and the eroded pixels are later returned. However for small and sharp objects the erosions can completely carve it out.

I am now working on a solution to this problem and my initial tests were promising. Essentially we can disable the erosion of pixels that are too bright. This will allow those pixels to remain and thus we won't loose such sharp small objects in the image.

Mohammad Akhlaghi <makhlaghi>
Project AdministratorIn charge of this item.

 

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    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Mon 29 Aug 2016 01:30:51 PM UTCmakhlaghiStatusIn Progress=>Done
      Percent Complete50%=>100%
      Open/ClosedOpen=>Closed

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