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[sr #110541] astcrop -width not matching output
From: |
Alejandro S Borlaff |
Subject: |
[sr #110541] astcrop -width not matching output |
Date: |
Thu, 16 Sep 2021 16:05:51 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:92.0) Gecko/20100101 Firefox/92.0 |
URL:
<https://savannah.gnu.org/support/?110541>
Summary: astcrop -width not matching output
Project: GNU Astronomy Utilities
Submitted by: borlaff
Submitted on: Thu 16 Sep 2021 08:05:49 PM UTC
Category: Crop
Priority: 5 - Normal
Severity: 3 - Normal
Item Group: Input/Output
Status: None
Privacy: Public
Assigned to: None
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Operating System: GNU/Linux
_______________________________________________________
Details:
Hi all,
I am having a problem with astcrop. Sometimes, depending on the image to be
cropped, and the crop settings, astcrop returns an image as output with
slightly different dimensions than the desired ones. Example:
$ astfits soft_thresh.fits
> Fits (GNU Astronomy Utilities) 0.15
Run on Thu Sep 16 12:53:18 2021
-----
HDU (extension) information: 'soft_thresh.fits'.
Column 1: Index (counting from 0, usable with '--hdu').
Column 2: Name ('EXTNAME' in FITS standard, usable with '--hdu').
('n/a' means that no name is specified for this HDU)
Column 3: Image data type or 'table' format (ASCII or binary).
Column 4: Size of data in HDU.
-----
0 n/a int32 4108x3602
$ astcrop -h0 soft_thresh.fits --mode=img --center=1854.5,1430.5 --width=512
$ astfits soft_thresh_cropped.fits
> Fits (GNU Astronomy Utilities) 0.15
Run on Thu Sep 16 12:54:02 2021
-----
HDU (extension) information: 'soft_thresh_cropped.fits'.
Column 1: Index (counting from 0, usable with '--hdu').
Column 2: Name ('EXTNAME' in FITS standard, usable with '--hdu').
('n/a' means that no name is specified for this HDU)
Column 3: Image data type or 'table' format (ASCII or binary).
Column 4: Size of data in HDU.
-----
0 n/a no-data 0
1 n/a int32 513x513
The output is 513x513 instead of 512x512. The same error occurs if the center
coordinates are set to int instead of float decimals. Thank you so much!
I cant upload the soft_thresh.fits file at it is 50Mb large. It can be
downloaded here.
https://wetransfer.com/downloads/e603ba92c64b20f03d21660edcde5a3120210916200237/5c48e14ef1c52ebc7ef4f46e70b21eca20210916200257/09784d
Alex
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Thu 16 Sep 2021 08:05:49 PM UTC Name: soft_thresh_cropped.fits Size:
1MiB By: borlaff
<http://savannah.gnu.org/support/download.php?file_id=51927>
_______________________________________________________
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<https://savannah.gnu.org/support/?110541>
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- [sr #110541] astcrop -width not matching output,
Alejandro S Borlaff <=