AcATaMa

AcATaMa (sort for Accuracy Assessment of Thematic Maps) is a powerful and complete Qgis plugin for accuracy assessment designed for land use/land cover classification, including supervised/unsupervised classification or any thematic map. It provides comprehensive support for sampling, response design and estimation within a design-based inference framework. The primary goal of AcATaMa is to equip users with the necessary tools to comply with international guidance and best practices for sampling design, estimation of land category areas and changes, and map accuracy assessment.

Important: AcATaMa with the version 24.10 has received a major update. Check if you are using the latest version of the plugin, this documentation is based on that update.

To ensure a good accuracy assessment AcATaMa provides three components: sampling design, used to select the reference sample; the response design, which allows the evaluation protocol, and finally, the analysis procedures with different estimators. AcATaMa provides several sampling designs and estimators, but also comprehensive support for the response design process. AcATaMa has been manually tested with multiple real examples for all user cases in order to guarantee the quality of the results, some of them have been implemented as unit tests.

AcATaMa implements equations, methodologies and recommendations from the following widely accepted papers, and we recommend reading as theoretical support and delving into the guide, protocol and recommendations for the entire process to calculate the accuracy assessment of a map, and how AcATaMa works:

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