wxGUI.photo2image(1)

💖 wxGUI.photo2image — the GRASS GIS User's Manual glow-up ✨

okay bestie, so this is the manual page for wxGUI.photo2image from the GRASS GIS User's Manual (section 1, the user commands section, iykyk) and it's literally the wxGUI GCP Manager for photo to image registration 💅

---

🎀 NAME 🎀

wxGUI.photo2image — wxGUI GCP Manager for photo to image registration 🫶

---

✨ DESCRIPTION ✨

so this module is based on g.gui.gcp, which is the GCP manager of GRASS GIS, and it's part of the i.ortho.photo suite 🦋

the whole point of this module, the main character energy of it, is to give absolute location values to the fiducial points that are present in a scanned aerial photo — and there's either 4 or 8 of them, no in-between 👑

and why do we even need this?? because (manual) scanning introduces distortions, rotations, and it also may not be limited to scanning the boundary of the photo itself 😭 so you have to give each fiducial its exact coordinates in mm, exactly as given by the aerial photographic instrument design — and bestie, that design is unique per camera 📸

to run this module you need to have already made a group with your aerial photo (i.group), plus a camera description file (i.ortho.target), and then you use them to launch the module. extra requirements on top of that:

• the order of rectification — that's 1 if the no of Fiducials is 4, and 2 if the no of Fiducials is 8 🔢
• an extension file — and if you don't give one, it defaults to \$filename_ip2i_out 🙈

an example for project imagery60:

g.gui.photo2image group=aerial@PERMANENT raster=gs13.1@PERMANENT camera=gscamera order=2 extension=try --o

slay. that's the whole invocation, no cap 💅

📸 Screenshot of g.gui.photo2image

Figure: Screenshot of g.gui.photo2image

for a detailed operation manual, please read wxGUI, wxGUI components 🧚

also see the video tutorials on the GRASS Wiki, they're lowkey iconic 🎥

---

🌈 SEE ALSO 🌈

• i.ortho.photo
• i.group
• i.ortho.camera
• i.ortho.target
• i.rectify
• m.transform
• v.rectify

---

👑 AUTHORS 👑

• Markus Metz
• Based on the Georectifier (GRASS 6.4.0) by Michael Barton
• Martin Landa, Czech Technical University in Prague, Czech Republic

---

🔥 SOURCE CODE 🔥

Available at: wxGUI GCP Manager for photo to image registration source code (history) 💾

Accessed: Saturday Jan 17 05:42:35 2026 ⏰

Main index | GUI index | Topics index | Keywords index | Graphical index | Full index 🌸

© 2003-2025 GRASS Development Team, GRASS GIS 8.4.2 Reference Manual

---

and that's a wrap bestie 💜 this was GRASS 8.4.2, page wxGUI.photo2image(1), signed off with all the love — go georeference those fiducials, you absolute icon 🫶✨💅