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[bug #63171] Strange patterns on warped images

From: Raul Infante-Sainz
Subject: [bug #63171] Strange patterns on warped images
Date: Wed, 12 Oct 2022 03:07:19 -0400 (EDT)

Follow-up Comment #15, bug #63171 (project gnuastro):

I solved my previous doubts. Pedram, just by using your code the noise image
is different each time. You need also to use the option '--envseed' and
specify the type of the random seed generator. So, something like:

export GSL_RNG_TYPE=ranlxs1
export GSL_RNG_SEED=1665844464
astarithmetic m51.fits -h1 set-i i i / 10 mknoise-sigma -o noise.fits

would generate always the same noised image. I will keep looking at this.


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