John,
OSSIM has a command-line tool that might be helpful. It is called
"extract_vertices" and outputs the 4 corners of the true image data.
Here is an excerpt from the document -
Used to compute the valid vertices (corners) of an image. Defines a polygon
- inside the polygon are valid sampled p
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
Does anyone know of a tool that will derive the minimum bounding
polygon of the actual image within a geotiff not including the black
area on the outside of the image that makes the entire image a
rectangle. I know that you can derive the minimum bounding rectangle
of the entire geotiff by running
