HUGIN_STACKER("1")

💖 NAME 💖

okay so hugin_stacker — it's a manual page from HUGIN (yes, HUGIN_STACKER("1"), that's the whole vibe) and what it does is literally stack overlapping images into one single image. bestie, it stacks. overlapping images. into a single image. 🫶

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✨ SYNOPSIS ✨

hugin_stacker [options] --mode=STRING images

🦋 DESCRIPTION 🦋

So hugin_stacker takes a whole stack of overlapping images and produces a combined image and/or a set of masked output images. That's the whole thing. Very demure, very mindful. 🎀

hugin_stacker is useful for e.g.

• automatic tourist removal (not only tourists, also other moving objects ;-))
• noise reduction
• visualize movement
• multiplicity

like… tourist removal?? no cap, it eats. 💅

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🌸 OPTIONS 🌸

• --mode — Select stack mode:
  • min|minimum|darkest — Select the darkest pixel.
  • max|maximum|brightest — Select the brightest pixel.
  • avg|average|mean — Calculate the mean for each position.
  • median — Calculate the median for each position.
  • winsor — Calculate the Winsor trimmed mean for each position. The parameter can be set with --winsor-trim=NUMBER (default: 0.2).
  • sigma — Calculate the sigma clipped mean for each position. Fine-tune with --max-sigma=NUMBER (default: 2) and --max-iterations=NUMBER (default: 5).

💜 Further parameters 💜

• --output=FILE — Set the filename for the output file (if not given final.tif is used).
• --compression=value — Set the compression of the output files. For jpeg files use values between 0 and 100. For tiff files valid values are: PACKBITS, DEFLATE, LZW.
• --bigtiff — Write output in BigTIFF format (only with TIFF output).

🌈 Mask input images 🌈

• --mask-input — Beside the stacked output hugin_stacker can also mask the input images (available only for stacking modes median|winsor|clip). This mode is activated with --mask-input. In this case the stacked image is first calculated. Then each pixel in each image is checked: if the value of this pixel differs more then mask sigma * standard deviation from the mean/median, this pixel is made visible. If it is in the mentioned range the pixel is masked out.
• --mask-sigma=NUMBER — sets the sigma parameter for --mask-input. Default is 2.
• --mask-suffix=STRING — Output a separate mask image for each input image named inputfilenameSTRING. Default value is "_mask".
• --multi-layer-output — Output a layered TIFF with the name specified with --output. The file contains the averaged image as layer 0 and all input images as additional layers with the mask as described above.

💀 friendly lil heads-up: the --mask-input mode is only available for stacking modes median|winsor|clip. so don't come for it with avg, she's not doing that today. 🙈

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👑 AUTHORS 👑

POD-format documentation converted from <https://wiki.panotools.org/Hugin_stacker> by Andreas Metzler

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⭐ okay that's the whole page, you're officially educated, go stack some tourists out of existence 😭💖

version 2025.0.1, dated 2026-09-22 — mwah, that's the sign-off, xoxo 💅✨