[Qgis-user] Aerial/satellite Image Segmentation : How to skip/not modelize shadows ?

[chris hermansen]

There is a lot of literature on shadow removal for satellite imagery which
shows up in a search. This GIS stack exchange thread seems like a
worthwhile place to start...

https://gis.stackexchange.com/questions/115817/how-to-remove-topographic-effects-like-shadows-from-landsat-image

On Mon, Jun 9, 2025, 07:36 celati Laurent via QGIS-User <
qgis-user at lists.osgeo.org> wrote:

> Dear all,
> With OTB via QGIS, I'm able to generate some interesting segmentations,
> particularly using the Generic Region Merging tool. The input image is one
> 20 cms aerial Ortho Infrared Color (green, red, and near infrared bands) or
> a Spot6/7 multispectral satellite image (1m50 resolution). One of the
> limitations, however, is the modeling/segmentation of shadows.
> I've attached a screenshot. Do you have any ideas on how to overcome this
> problem/skip/not modelize/segments shadows ?
> Thanks so much.
> [image: image.png]
>
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