# ThRasE

![](docs/img/thrase.svg)

ThRasE is a powerful and fast Thematic Raster Editor QGIS plugin. It utilizes a recode pixel table to modify multiple 
classes simultaneously using various tools, including pixels, lines, polygons, and freehand drawing. The plugin also 
features a navigation tool to facilitate layer inspection.

The plugin serves multiple purposes, including but not limited to:

* Editing/reclassifying thematic maps
* Creating thematic maps from scratch
* Labeling images for tasks such as semantic segmentation
* Creating training data for machine learning models
* Refining agricultural maps
* Updating urban planning maps
* Classifying/fix land cover types

![](docs/img/overview.webp)

Read more in: [https://smbyc.github.io/ThRasE](https://smbyc.github.io/ThRasE)

> ThRasE is a tool for editing thematic or categorical raster layers, it means raster with integer
> values ([read more](https://smbyc.github.io/ThRasE/#thematic-raster-to-edit)). If you want to edit raster with float
> values you can use [serval](https://plugins.qgis.org/plugins/Serval/) plugin for that.

## Source code

Source code, issue tracker, QA and ideas: [https://github.com/SMByC/ThRasE](https://github.com/SMByC/ThRasE)
The home plugin in
plugins.qgis.org: [https://plugins.qgis.org/plugins/ThRasE/](https://plugins.qgis.org/plugins/ThRasE/)

## About us

ThRasE 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 C. Llano* *<xavier.corredor.llano@gmail.com>*  
Theoretical support, tester and product verification: SMByC-PDI group

## License

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