FITSCUT(1)

✨ FITSCUT ✨

okay bestie, so fitscut is a little user command that pulls cutouts out of FITS image format files 🎀 like it just... reaches into a big astro image and yoinks the exact square you want. main character energy fr fr 💅

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🦋 SYNOPSIS 🦋

fitscut [options] file [green] [blue] [outfile]

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💖 DESCRIPTION 💖

🌸 Options are:

• -f, --force — force overwrite of output file (it will literally just bulldoze whatever's already sitting there 😤)
• -h, --help — display this help and exit
• -v, --verbose — verbose operation (it talks more, we love a chatty icon)
• -V, --version — output version information and exit
• -p, --png — output a PNG format file 🖼️
• -j, --jpg — output a JPEG format file 📸
• -x, --x=N — X center coordinate
• -y, --y=N — Y center coordinate
• --x0=N — X corner coordinate
• --y0=N — Y corner coordinate
• -r, --rows=N — number of rows (height)
• -c, --columns=N — number of columns (width)
• --all — extract a cutout of the same size as the input image (the whole thing, no cutting, periodt)
• --linear-scale — output in linear scale [default]
• -l, --log-scale — output in log scale
• -s, --sqrt-scale — output in square root scale
• -e, --histeq-scale — histogram equalized output
• --asinh-scale — asinh equalized output
• -i, --invert — invert output colors (negative vibe, on purpose 💀)
• --palette=name — output palette name (png output only)
• --factor=value — multiply image by value
• --rate — scale image by exposure time factor
• --autoscale=percent — percent of histogram to include

If percent is a single value it is interpreted as the percentage of the histogram to include. If percent is two values separated by a comma it is interpreted as the lower and upper bounds of the histogram to include (eg. --autoscale=1.5,98.5)

• --autoscale-min=percent — lower bound percentage of histogram to include
• --autoscale-max=percent — upper bound percentage of histogram to include
• --min=value — image value to use for scale minimum
• --max=value — image value to use for scale maximum

The value for --min or --max may be either one value to be used for all images (eg. --min=0), or one value for each image separated by a comma (eg. --min=0,0,0)

• --red=file — filename to be used in red channel of color image
• --green=file — filename to be used in green channel of color image
• --blue=file — filename to be used in blue channel of color image
• --zoom=factor — zoom input image by positive multiplicative factor
• --align — use WCS information in header to align images
• --compass — add a WCS compass to the image 🧭

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🌈 Supported palettes:

gray heat cool rainbow red green blue

bestie if you need a palette for something other than a PNG, that's a no from the manpage, iykyk 🙈

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and that's the whole page, no cap 👑

this was fitscut 1.4.4, dated Tue Oct 31 16:43... April 2024 — ty for coming to my ted talk, go extract something gorgeous 💜✨🦋