The AcATaMa is a Qgis plugin for Accuracy Assessment of Thematic Maps. It was designed mainly for: to assess the accuracy of thematic maps, to estimate areas of the map classes, sampling design/classification and others.



The plugin can be installed using the QGIS Plugin Manager, go into Qgis to Plugins menu and Manage and install plugins, in All section search for AcATaMa.

The plugin will be available in the Plugins menu and Plugins toolbar.

Source code

The official version control system repository of the plugin:

The home plugin:

The home plugin in

Issue Tracker

Issues, ideas and enhancements:

Get involved

The AcATaMa plugin is open source and you can help in different ways:

About us

AcATaMa was developing, designed and implemented by the Group of Forest and Carbon Monitoring System (SMByC), operated by the Institute of Hydrology, Meteorology and Environmental Studies (IDEAM) - Colombia.

Author and developer: Xavier Corredor Ll.
Theoretical support, tester and product verification: Lina Katerine V., Gustavo Galindo, Juan Carlos R.

Acknowledge to all SMByC team.


Xavier Corredor Ll.: xcorredorl (a)
SMByC: smbyc (a)


AcATaMa is a free/libre software and is licensed under the GNU General Public License.