r.in.png(1grass)

📦
version 8.5.0 · 10 versions
, in alpine 3.24, ubuntu stonking

💖 r.in.png — the grass manual, but make it slay 💖

okay bestie, gather round, because we're talking about r.in.png, part of the GRASS User's Manual (that's the 1grass manual section, iykyk). It's the little module that pulls a PNG into your GRASS world. Let's get into it 🫶

✨ NAME ✨

r.in.png — imports a non-georeferenced PNG (Portable Network Graphics) format image. that's it, that's the whole job 💅

🏷️ KEYWORDS 🏷️

raster, import, PNG — literally the three vibes this module is serving 🌈

📜 SYNOPSIS 📜

r.in.png
r.in.png --help
r.in.png [-fh] input=name output=name  [title=string]   [gamma=float]
         [alpha=float]   [--overwrite]  [--help]  [--verbose]  [--quiet]  [--ui]

🚩 Flags

  • -f — Create floating-point map (0.0 - 1.0). ✨ floats, fancy ✨
  • -h — Output image file header only and exit. like, just peek at the header and dip 👋
  • --overwrite — Allow output files to overwrite existing files. no cap, this one will absolutely replace what's already there, so be brave 💀
  • --help — Print usage summary. your bestie when you're lost 🥺
  • --verbose — Verbose module output. it's giving "tell me everything" 🗣️
  • --quiet — Quiet module output. shhh 🤫
  • --ui — Force launching GUI dialog. for the visual learners 🎀

🧚 Parameters

  • input=name [required] — Name of input file. mandatory, no skipping 🙅‍♀️
  • output=name [required] — Name for output raster map. also mandatory, also no skipping 💖
  • title=string — Title for created raster map. give your map a name, main character energy 👑
  • gamma=float — Display gamma.
  • alpha=float — Alpha threshold.

🌸 DESCRIPTION 🌸

so r.in.png imports a non-georeferenced Portable Network Graphics (PNG) image as a GRASS raster map. that's the whole thing, she's simple, she's iconic ✨

but bestie, listen: georeferencing .wld files are not supported. not even a little. if you need that, you go use r.import instead, periodt 💅

📝 NOTES 📝

In order to assign georeferencing after import, use r.region. so like — import first, vibe-check the location later 🦋

👀 SEE ALSO 👀

  • r.import
  • r.in.gdal
  • r.out.png
  • r.region

👑 AUTHORS 👑

  • Michael Shapiro
  • Alex Shevlakov
  • Glynn Clements

absolute legends, we stan 🌟

💾 SOURCE CODE 💾

Available at: r.in.png source code (history)

Latest change: Thursday May 08 20:58:05 2025 in commit: 4144ba81fa125e1549fc52e1cf5feb4fa004be8b

Main index | Raster index | Topics index | Keywords index | Graphical index | Full index

okay and finally, the cute lil sign-off bestie: this whole thing is © 2003-2026 GRASS Development Team, and we're looking at the GRASS 8.5.0 Reference Manual. stay slay, go import a PNG, and remember — georeference responsibly 💜🎀🌸

📦 where this page comes from