I have lovely, untouched Landsat 8 images from USGS that I would like to merge/mosaic. However, I can't find a function to somehow ignore the zero-value wedges. I also processed a stack of files so that they don't have the zeroes but when I add those to a mosaic dataset, Arc seems to lose its s*&^ and jumbles up the values in the output bands (and for many, just puts in the maximum value, not the value from the input).
Hi Matthew - Here are a couple help topics that should get you where you need to be. The first is about managing no value, the second is choosing a blank symbol for no data.
Hope this helps,
Update, in case anyone has the same question:
I at least partly worked this out: use the "Define Mosaic Dataset NoData" tool. Now I just need to work out the best compromise method for non-zero values in the overlap.