VISIR_IMG_DARK(7)

📦
version 4.4.2 · 2 versions
, in debian bookworm, ubuntu noble

✨ VISIR_IMG_DARK ✨

okay bestie, welcome to the visir_img_dark manual page 💖 this one lives in the visir recipes section of the manual (section 7, iykyk), and it's literally the dark recipe. let's get into it 🎀

🌙 NAME 🌙

visir_img_dark — the Dark recipe 🖤

🦋 SYNOPSIS 🦋

esorex visir_img_dark [OPTIONS] FILE.sof

💅 DESCRIPTION 💅

so what does it actually do? bestie. it computes the dark. that's the whole vibe. the dark gets computed ✨

the files you list in the Set Of Frames (the sof-file) have to be tagged as either:

  • VISIR-dark-image-raw-file.fits IM_CAL_DARK
  • VISIR-dark-spectro-raw-file.fits SPEC_CAL_DARK

and then the corresponding four products will each have a FITS card HIERARCH ESO PRO CATG with these values:

for imaging 👑:

  • IMG_DARK_AVG
  • IMG_DARK_HOT
  • IMG_DARK_COLD
  • IMG_DARK_DEV

or, for spectroscopy 🔬:

  • SPEC_DARK_AVG
  • SPEC_DARK_HOT
  • SPEC_DARK_COLD
  • SPEC_DARK_DEV

periodt. four products, every time 🫶

🎀 OPTIONS 🎀

  • --r <str> — rejected left, right, bottom and top border, in pixels (str; default: ´50 50 50 50´). the full name of this option for the EsoRex configuration file is visir.visir_img_dark.rej_bord [default = 50 50 50 50]. 🚫
  • --hot_t <float> — hot pixel map threshold (float; default: 10.0). the full name of this option for the EsoRex configuration file is visir.visir_img_dark.hot_threshold [default = 10.0]. 🔥
  • --cold_t <float> — cold pixel map threshold (float; default: 6.0). the full name of this option for the EsoRex configuration file is visir.visir_img_dark.cold_threshold [default = 6.0]. 🧊
  • --dev_t <float> — deviant pixel map threshold (float; default: 5.0). the full name of this option for the EsoRex configuration file is visir.visir_img_dark.dev_threshold [default = 5.0]. 😈
  • --nsamples <int> — number of samples for Read-Out Noise (RON) computation (int; default: 100). the full name of this option for the EsoRex configuration file is visir.visir_img_dark.nsamples [default = 100]. 🎧
  • --hsize <int> — half size of the window for Read-Out Noise (RON) computation (int; default: 2). the full name of this option for the EsoRex configuration file is visir.visir_img_dark.hsize [default = 2]. 🪟
ngl, you can make a configuration file containing these options, along with suitable default values 💖 just check the details that the esorex --help command gives you, bestie. it's giving "read the help, slay" ✨

👀 SEE ALSO 👀

the full documentation for the visir pipeline can be downloaded as a PDF file using this URL, fr fr:

ftp://ftp.eso.org/pub/dfs/pipelines/visir/visir-pipeline-manual-1.4.pdf

there's also an overview over the existing ESO pipelines on the web page https://www.eso.org/sci/software/pipelines/ 🌈

basic documentation about the EsoRex program lives at the esorex (1) man page 📖

and you can literally call the pipelines from python using the python-cpl package 👑 — see https://packages.python.org/python-cpl/index.html for further information.

the other recipes of the visir pipeline, in all their glory, are:

⭐ VERSION ⭐

visir_img_dark 4.4.2 💜

🧚 AUTHOR 🧚

Lars Lundin <https://support.eso.org> — main character energy, honestly 🌟

😭 BUG REPORTS 😭

please report any problems to https://support.eso.org 🙈 alternatively, you may send a report to the ESO User Support Department <usd-help@eso.org> 💌

📜 LICENSE 📜

this file is part of the VISIR Instrument Pipeline Copyright (C) 2004, 2005 European Southern Observatory 🏛️

this program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

this program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. see the GNU General Public License for more details. ⚠️

you should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1307 USA 🌸

and that's the whole page, bestie 🫶 this was visir_img_dark version 4.4.2, from the visir_img_dark manual page dated 4.4.2 — go compute some darks and slay 💅✨

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