Landsat image raster calculation

Discussion created by yeddi18 on Jun 20, 2014
I have a series of landsat images that I want to mosaic.  How do I remove the null value(black) border that is around the actual image?  I tried an expresiion  in raster calculator but it didn''t work.  This is the the expression I tried:

[ Your New Boolean Raster Name] = con ( [Raster File You Are Working On] == 0 , 0 , 1 )

Thanks in advance