Sun glint correction of very high spatial resolution images

Sun glint is often evident in remotely sensed imagery data of very high spatial resolution that depict aquatic environment. The problem occurs when the water surface is not flat and the sun radiation is directly reflected to the sensor affecting the pixel brightness values. The state of water surface, sun position and viewing angle are the main function parameters to estimate glint effect on the images. The removal of glint is compulsory since multispectral bathymetry and bottom types mapping are affected unfavourably. In this paper two widely applied methodologies were investigated towards correcting from sun glint effect optical satellite images of very high spatial resolution. Particularly, the approaches proposed by Lyzenga (1985) and Hedley et al. (2005) were applied on images acquired by Ikonos-2 and Worldview-2. The experimental results indicated the effectiveness of both methods in correcting glint contaminated imagery datasets.

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