[GIS] How to remove white parts in ArcMap 10.1

arcgis-10.1arcmapcartographymosaicscale

This is the part of my map.

enter image description here

On this picture you can see white strips. Some of this white parts are appeared on the intersection of 2 Mosaic Dataset (for eaxample, there is the real map in 1 Mosaic dataset, there is the empty scan in 2 Mosaic dataset). How to set option "no-data" of Mosaic Layer? I want to display map without white parts.

UPDATE

On this picture you can see different MosaicDatasets. On the other forum people tell me that it is impossible to delete white parts in this case. (because it is not a single mosaic dataset)

Is it true?

Best Answer

There is some good description of NoData in raster datasets in general here. Otherwise, I'd suggest using the Define Mosaic Dataset NoData GP tool.

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