[gdal-dev] Is a way to just get the minimum bounding polygon of just the image.

[Iván Sánchez Ortega]

El día Wednesday 09 June 2010 15:24:13, John Mitchell dijo:
> Does anyone know of a tool that will derive the minimum bounding
> polygon of the actual image

Maybe you can start with http://www.gdal.org/gdal_polygonize.html ?

Get some polygons for the black areas, then do a bit of geoprocessing to 
calculate the difference between the image bbox and the black polygons.

-- 
Iván Sánchez Ortega <ivan at sanchezortega.es>

Un ordenador no es una televisión ni un microondas: es una herramienta 
compleja.