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How Nibble works

Release 9.2
Last modified January 3, 2008
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Nibble allows selected areas of a raster to be assigned the value of their nearest neighbor. This is useful for editing areas of a raster where the data is known to be erroneous.

First, the program determines all areas in the mask raster with the value NoData. The corresponding areas in raster will be nibbled. Second, the internal Euclidean allocation is performed to allocate values to the masked cells based on Euclidean distance.

The values of cells of the input raster that correspond to the cells of NoData are then nibbled away and replaced by the values of the nearest neighbor according to Euclidean distance.

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