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[bug #63171] Strange patterns on warped images

From: Mohammad Akhlaghi
Subject: [bug #63171] Strange patterns on warped images
Date: Tue, 11 Oct 2022 11:26:34 -0400 (EDT)

Follow-up Comment #12, bug #63171 (project gnuastro):

Thanks for the nice tests Pedram and Raul.

To help speed up the tests, Pedram, can you see if this also happens on a
small '--width' also? If so, you can set the '--center' and '--width' to a
small size around a small region like the one I showed in my original post,
select one pixel in the high and another in the low resolution regions, and
see what is happening!?!

The fact that setting '--cdelt' to a smaller value reduces the problem hints
that it has to do with sampling.


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