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Question:

How do I fill in the gaps in my Landsat 7 SLC-off image?

Answer:

All Landsat 7 scenes collected since May of 2003 have data gaps. Although the scenes have only 78 percent of their pixels, these data are still some of the most geometrically and radiometrically accurate of all civilian satellite data in the world.

The Landsat 7 page provides information, useful tools, and documentation on a number of methods developed to fill the gaps of Landsat 7 SLC-off data, to assist users in creating a usable filled final image.