topic_rectify(1)

💖 topic_rectify — GRASS GIS User's Manual 💖

okay bestie, welcome to the GRASS GIS User's Manual, and specifically to the topic page for rectify — and yes, this is a topic page, not a command, so don't come for me, it's literally a curated lil roundup of the commands that do rectifying around here ✨

---

🌈 Topic: rectify 🌈

so like, "rectify" in GRASS-land means fixing up geometry — taking stuff that's a lil crooked and making it sit right, based on your control points. two icons do this job, one for rasters, one for vectors. let's go 👑

• i.rectify — Rectifies an image by computing a coordinate transformation for each pixel in the image based on the control points. 📸✨
• v.rectify — Rectifies a vector by computing a coordinate transformation for each object in the vector based on the control points. 🦋

no cap, that's the whole vibe: pixels get transformed one-by-one for images, objects get transformed one-by-one for vectors, and the control points are the blueprint doing the heavy lifting. iykyk 💅

---

🔍 See also 🔍

See also the corresponding keyword rectify for additional references. 🫶

---

🎀 Indexes (the navigation era) 🎀

• Main index
• Topics index
• Keywords index
• Graphical index
• Full index

---

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

and that's the whole page, bestie!! 💖 this manual page came to you courtesy of GRASS GIS 8.4.2 — literally the version, the vibe, the moment — from the GRASS Development Team, with the copyright sitting at © 2003-2025. slay, go rectify something, ily 🫶✨🌸