mosaic dataset

[MANESK]

I've created a Mosaic dataset..After Defining No Data value as  "0" to the all Bands i have the output attached in .Png Format...Still i've to fill the gaps between the images and eliminate the artifacts... How can i do it.... i tried with the Function for Raster Calculator posted in previous threads

Con(IsNull("raster"), FocalStatistics("raster", NbrRectangle(5,5, "CELL"), "MEAN"), "raster")..

But Still i've the problem.... Pls provide valuable suggestions....

[CodyBenkelman]

It's hard to tell for sure, but it appears the pixel values in those "slivers" are not 0, therefore not being flagged as NoData.

There are 2 ways to manage NoData (with a few configuration options) - we typically recommend NOT to define a NoData value, but instead define Footprints (perhaps shrinking them by a few pixels distance) and then in Mosaic Dataset properties, turn on Clip to Footprints? = Yes

See background here Source mosaic datasets—Standard Workflow_Creating Mosaic Datasets | ArcGIS  and see the section "Footprints and NoData"