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I have dataset imagery comes from IKONOS satellite, the dataset contains "imagery with 1m resolution - metadata - rpc file", the metadata file contains the information about "Sun Angle Azimuth - Sun Angle Elevation - Acquisition Date/Time", so is there any way to remove the shadows area from the imagery data?

metadata http://rghost.net/6cb99zmLy/image.png

edit: i used GCP with Socet GXP to generate high resolution DEM (1m).

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  • Do you have a digital elevation model with the same resolution? Then you could calculate the length and position of shadows.
    – Iris
    Commented Nov 27, 2015 at 13:23
  • yeah, i used GCP with Socet GXP to generate high resolution DEM (1m) from it.
    – GIS Man
    Commented Nov 27, 2015 at 13:50
  • rghost.net/7JkBw6FpP/image.png
    – GIS Man
    Commented Nov 27, 2015 at 16:48
  • rghost.net/7gMxGfKwZ/image.png
    – GIS Man
    Commented Nov 27, 2015 at 16:53

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I think this is an issue about topographic correction. For instance, you can refer to this paper "Topographic correction algorithm for remotely sensed data accounting for indirect irradiance" or "A Physically-Based Model to Correct Atmospheric and Illumination Effects in Optical Satellite Data of Rugged Terrain".

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