Mosaic Landsat 8 without black bands

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02-01-2017 08:57 AM
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New Contributor II

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).

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Occasional Contributor III

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.

NoData in raster datasets—Help | ArcGIS for Desktop 

Symbolizing values of NoData in raster datasets—Help | ArcGIS for Desktop 

Hope this helps,

Adam Z

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New Contributor II

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.

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Regular Contributor II

I'm curious did you change the operator to blend ?  In the past, I have used this in ENVI or ERDAS and it is so much easier...

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