Since 2003, the Scan Line Corrector (SLC) instrument of the Enhanced Thematic Mapper plus (ETM+) sensor on board a Landsat 7 satellite has failed permanently causing regular gaps to appear in Landsat 7 images. This malfunction has been limited and hampered the scientific application of ETM+ data. Therefore, several methodologies and techniques have been conducted to reconstruct these gaps in order to expand the usability of the ETM+ SLC-off images. These methods can be classified as single source and multi-source methods. In this study two single source interpolation methods, mean and IDW are utilized to estimate the missing pixels value and the obtained results are compared with multi-source approach, LLHM. The results are assessed qualitatively and quantitatively using two statistical indicators RMSE and SE. The results indicated the superiority of LLHM on the single source interpolation methods.
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