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Overlapping orthophotos in a Mosaic Dataset

Question asked by schignel on Apr 24, 2012
Latest reply on May 2, 2012 by schignel
Hi all, I've a number of orthophotos covering a forest in flight lines that slightly overlap.  I first attempted to mosaic them all together into a single TIFF with image analysis, but it's such a big file that I'm now trying to put them in a mosaic dataset.

I have a couple of questions:

1.  The only way i can get a decent mosaic without cracks and spaces between the images is to use the "max" mosaic operator, which works fine when I'm zoomed in, but the overviews I built don't seem to want to mosaic in the same way--they are all chopped up when I'm even a bit zoomed out. Is there a way to have the overviews also mosaic nicely?


2. Which would be the best mosaic method to use in this case?  I'm using North-West as a default and it works ok, but would closest to center make more sense? 


3. I have sets of images from 5 sequential years.  Would it be best to include them all in a single mosaic dataset and give them each a Year field and then choose the mosaic method "by attribute?"  OR would it be wiser to make a different Mosaic Dataset for each year?

Thanks!
Steve

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