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This module aims to suppress speckle in the SAR Sentinel-1 product (developed for GRD data) by using guided image filtering. The guided filter computes the filtered SAR output by considering the content of a guidance image (Sentinel-2 RGB image). Guided filter has a good edge-preserving property, while it suppresses speckle noise.

Relevant material/sources

Verdoliva, L.; Amitrano, D.; Gaetano, R.; Ruello, G.; Poggi, G. SAR despeckling guided by an optical image. IEEE International Geoscience and Remote Sensing Symposium, 2014, pp. 3698-3701.

Developed by

Name: Georgios Kordelas, Ioannis Manakos (Contact: imanakos - at -

Organization: Centre for Research and Technology Hellas (CERTH) | Information Technologies Institute (ITI) (

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