---
name: "zhang_undistort"
section: "1"
platform: "linux"
package: "hugin-tools"
version: "0.6.1-1"
release: "Debian 4.0 (Etch)"
platforms: ["linux"]
url: "https://new.carta.tech/zhang_undistort"
---

# zhang\_undistort(1)

correct barrel distortion, using zhang's algorithm.

## NAME

ZHANG\_UNDISTORT - correct barrel distortion, using zhang's algorithm.

## SYNOPSIS

**zhang\_undistort \[***k0***\] \[***k1***\] \[***alpha***\] \[***beta***\] \[***u0***\] \[***v0***\]** **\[***input\_image***\] \[***output\_image***\]**

## DESCRIPTION

**zhang\_undistort** is a tool which correct barrel distortion, using zhang's algorithm.

This manual page was written for the Debian GNU/Linux distribution because the original program does not have a manual page.

## SEE ALSO

http://wiki.panotools.org/Barrel\_distortion\
 The parameters can be found by using camchecker (http://loper.org/~matt/CamChecker/CamChecker\_docs/html/index.html).

## AUTHOR

Hugin is maintened by Pablo d'Angelo \<pablo.dangelo@web.de\>.\
 This manpage was written by Florent Bayle \<fbayle@bigfoot.com\> for Debian GNU/Linux distribution because the original program does not have a manual page.