taskGNU Astronomy Utilities - Tasks: task #14169, ImageCrop on any WCS coordinate...


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task #14169: ImageCrop on any WCS coordinate orientation

Submitter:  Mohammad Akhlaghi <makhlaghi>
Submitted:  Mon 03 Oct 2016 11:48:59 AM UTC
Should Start On:  Sun 02 Oct 2016 03:00:00 PM UTC Should be Finished on:  Sun 02 Oct 2016 03:00:00 PM UTC
Category:  Crop Priority:  5 - Normal
Item Group:  Enhancement Status:  Postponed
Privacy:  Public Percent Complete:  0%
Assigned to:  None Open/Closed:  Open
Effort:  0.00

Mon 03 Oct 2016 11:48:59 AM UTC, original submission:  

Currently in WCS mode, ImageCrop only works when the celestial coordinates are aligned with the image coordinates: declination along the vertical axis and right ascention opposite to the horizontal axes. This is the standard alignment for processed survey images, but very inconvenient when using single exposure images that are not yet aligned.

So we have to remove the WCS mode's assumptions regarding the orientation of the WCS axeses to fix this problem. When there are multiple images to stitch from, we have to simply make sure that the axises align with each other, not with the image axises.

Mohammad Akhlaghi <makhlaghi>
Project Administrator


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