Hello, In ArcMap 9.3, I have multiple raster datasets which apparently have NoData pixels (that's what Identify shows). But the cells do not behave like NoData, e.g. * the NoData color doesn't work, instead the pixel has the 'lowest' color in the color range; * checking for NoData values using Con(IsNull([in_grid])) yields only 0, so no pixels are recognized as NoData * when applying a focal mean function (3x3), all 9 pixels get the same "NoData" characteristics as mentioned above, although the other 8 pixels do have (floating point) values. What might be the problem and how can I filter/replace these "NoData" pixels? Best regards, Rogier de Jong
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