GRASS tool highlight: i.segment does object-based image segmentation using region growing with merging or mean shift. Supports hierarchical segmentation: run at threshold=0.02, feed the output as seeds into the next pass at 0.08, 0.20, 0.40. As the threshold increases, more spectrally similar neighbors merge into fewer, larger segments.
By Eric Momsen and Markus Metz.
Docs: https://grass.osgeo.org/grass-stable/manuals/i.segment.html
8.5: https://grass.osgeo.org/grass85/manuals/i.segment.html
#GRASS #OpenSource #RemoteSensing #OBIA
GRASS
@grassgis@fosstodon.org
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GRASS news, tutorials, and other resources on geospatial stuff.
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
In two hours: International Society for Geomorphometry Coffee Talk: #Geomorphometry with @grassgis by Corey White
Link: https://uqac.zoom.us/j/87983675737
Wednesday, April 1, 2026, 10AM ET, 16:00 CET, 23:00 JST
https://www.timeanddate.com/worldclock/converter.html?iso=20260401T140000&p1=207&p2=1440&p3=248&p4=195
Link: https://uqac.zoom.us/j/87983675737
Wednesday, April 1, 2026, 10AM ET, 16:00 CET, 23:00 JST
https://www.timeanddate.com/worldclock/converter.html?iso=20260401T140000&p1=207&p2=1440&p3=248&p4=195
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
International Society for Geomorphometry Coffee Talk: Geomorphometry with GRASS by Corey White
Wednesday, April 1, 2026 | 14:00 UTC (see you time zone: https://lnkd.in/dMNWCcZT)
Link: https://lnkd.in/dVxq_7rm
Wednesday, April 1, 2026 | 14:00 UTC (see you time zone: https://lnkd.in/dMNWCcZT)
Link: https://lnkd.in/dVxq_7rm
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
Coffee Talk: Geomorphometry with GRASS with Corey White (Center for Geospatial Analytics @ NC State University; GRASS Core Development Team Member) will discuss GRASS as a high-performance, extensible #geospatial engine for #geomorphometry. Examples include post–hurricane analysis, DEM fusion & terrain uncertainty. Also: Python/R/Jupyter integration + an open add-on ecosystem for sharing methods.
Apr 1, 2026 14:00 UTC
Time: https://tinyurl.com/5n2dbbxf
Zoom: https://uqac.zoom.us/j/87983675737
Apr 1, 2026 14:00 UTC
Time: https://tinyurl.com/5n2dbbxf
Zoom: https://uqac.zoom.us/j/87983675737
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
GRASS packages for macOS + Linux are now on conda-forge. It allows for easier to install along other tools into the same environment for smoother data science workflows.
`conda install -c conda-forge grass`
https://grass.osgeo.org/download/conda/
`conda install -c conda-forge grass`
https://grass.osgeo.org/download/conda/
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
Next release is close. Please, test the new documentation!
https://grass.osgeo.org/grass-devel/manuals/
Review and report issues & suggestions on GitHub:
https://github.com/OSGeo/grass/issues
https://grass.osgeo.org/grass-devel/manuals/
Review and report issues & suggestions on GitHub:
https://github.com/OSGeo/grass/issues
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
2025 was a big year for GRASS: modernized documentation, faster parallel raster algebra, a new Python API with NumPy integration, JSON outputs for data-science workflows, new addons, and a major developer summit in North Carolina—plus tutorials, workshops, and community support.
Read the full GRASS Annual Report 2025:
https://grass.osgeo.org/news/2025_12_31_annual_report/
Read the full GRASS Annual Report 2025:
https://grass.osgeo.org/news/2025_12_31_annual_report/
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
🎬 Missed today's webinar on the new #GRASS #Python API? The recording is now available!
Learn how upcoming GRASS 8.5 lets you use GRASS tools as Python functions, integrates NumPy, and simplifies #geospatial automation with JSON outputs and context managers.
Thanks to Natrx for supporting this development!
https://youtu.be/6VI9bfglP3c
Learn how upcoming GRASS 8.5 lets you use GRASS tools as Python functions, integrates NumPy, and simplifies #geospatial automation with JSON outputs and context managers.
Thanks to Natrx for supporting this development!
https://youtu.be/6VI9bfglP3c
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
⏰ Less than 24 hours until our #webinar on the #GRASS #Python API in GRASS 8.5!
🗓️ Dec 18, 2025
🕒 1:00 PM ET (18:00 UTC)
🔗 Register here: https://ncsu.zoom.us/meeting/register/fe9cFpm0Tl6PHjXWSJaFcw
#GIS #geospatial #API #learn
🗓️ Dec 18, 2025
🕒 1:00 PM ET (18:00 UTC)
🔗 Register here: https://ncsu.zoom.us/meeting/register/fe9cFpm0Tl6PHjXWSJaFcw
#GIS #geospatial #API #learn
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
Hosted at the Center for Geospatial Analytics, North Carolina State University, community at local meetup in Raleigh, NC, USA has been focused on GRASS usability, point clouds, tutorials, PR reviews, and prepping for the next release. Support our next event through NumFOCUS: https://numfocus.org/donate-to-grass
See the full report: https://grasswiki.osgeo.org/wiki/Local_GRASS_Meetup_at_NC_State_Center_for_Geospatial_Analytics_2025
https://grasswiki.osgeo.org/wiki/Local_GRASS_Meetup_at_NC_State_Center_for_Geospatial_Analytics_2025
See the full report: https://grasswiki.osgeo.org/wiki/Local_GRASS_Meetup_at_NC_State_Center_for_Geospatial_Analytics_2025
https://grasswiki.osgeo.org/wiki/Local_GRASS_Meetup_at_NC_State_Center_for_Geospatial_Analytics_2025
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
#Webinar on the new #GRASS #Python API in upcoming v8.5! Supported by Natrx, this update allows GRASS tools to be used as Python functions, integrates NumPy, and introduces efficient context managers. Discover how JSON outputs enhance Python integration, simplifying geospatial automation and data science workflows.
🗓️ Date: December 18, 2025
🕒 Time: 1:00 PM Eastern Time (18:00 UTC)
🔗 Register here: https://ncsu.zoom.us/meeting/register/fe9cFpm0Tl6PHjXWSJaFcw
🗓️ Date: December 18, 2025
🕒 Time: 1:00 PM Eastern Time (18:00 UTC)
🔗 Register here: https://ncsu.zoom.us/meeting/register/fe9cFpm0Tl6PHjXWSJaFcw
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
🌾 GRASS 8.4.2 is out! 🎉
This update brings enhanced stability and performance improvements to our powerful open-source software 🙌
The changes span core tools, GUI, Python support, packaging, and build infrastructure — making GRASS more stable, reliable, and polished for day-to-day use 🚀
👉 Learn more: https://grass.osgeo.org/news/2025_11_27_grass_gis_8_4_2_released/
#GRASS #OpenSource #SoftwareUpdate #geospatial #map
https://grass.osgeo.org/news/2025_11_27_grass_gis_8_4_2_released/
This update brings enhanced stability and performance improvements to our powerful open-source software 🙌
The changes span core tools, GUI, Python support, packaging, and build infrastructure — making GRASS more stable, reliable, and polished for day-to-day use 🚀
👉 Learn more: https://grass.osgeo.org/news/2025_11_27_grass_gis_8_4_2_released/
#GRASS #OpenSource #SoftwareUpdate #geospatial #map
https://grass.osgeo.org/news/2025_11_27_grass_gis_8_4_2_released/
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GRASS
@grassgis@fosstodon.org
GRASS news, tutorials, and other resources on geospatial stuff.
fosstodon.org
🌍 GRASS GIS at FOSS4G 2024 in Belém! 🎉
We’re thrilled to share that the GRASS team made a strong impact at #foss4g2024 with a keynote, an engaging workshop, and an insightful talk! 🚀
But that's not all—tomorrow we'll be at the code sprint, ready to connect and collaborate. Come find us! Let's chat about all things GRASS and open-source GIS.
See you there! 👋💚
#OpenSource #Community #GRASSGIS #OSGeo
We’re thrilled to share that the GRASS team made a strong impact at #foss4g2024 with a keynote, an engaging workshop, and an insightful talk! 🚀
But that's not all—tomorrow we'll be at the code sprint, ready to connect and collaborate. Come find us! Let's chat about all things GRASS and open-source GIS.
See you there! 👋💚
#OpenSource #Community #GRASSGIS #OSGeo
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