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Poor seam in mosaic between imagery sources

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06-08-2023 07:56 AM
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DavidCriswell
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New Contributor II
‎06-08-2023 07:56 AM

Hey guys,

I'm preparing to create a vector map tile package to host imagery AGOL. It's for two counties totaling about 5,000 images and 400 GB. I have three folders of TIFFs I'm mosaic-ing, but the overlap between sources comes out very poorly (see image below). How can I create the overlap to be more seamless without manually removing hundreds of overlapping images from the source folder? My workflow is listed as follows:

  1. Ensure that the folders of images contain .TIF files only and no .OVR files. Delete any .OVR files if they exist
  2. Go to Analysis>Geoprocessing>Environments and uncheck the box for Maintain Attachments 
  3. Run Create Mosaic Dataset from Geoprocessing Tools in ArcGIS Pro 
  4. Run Add Rasters to Mosaic Dataset and add three folders
  5. Run Define Overviews from Geoprocessing Tools 
    1. Check box for Force Overview Tiles 
    2. Enter ­-1 for Number of Levels 
  6. Run Build Overviews from Geoprocessing Tools  
    1. Uncheck box for Define Missing Overview Tiles 

thumbnail_image.png

I've tried changing the display order in Resolve Overlap, but nothing changes no matter which order I choose.

 

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PeterBecker
by Esri Regular Contributor
Esri Regular Contributor
‎06-08-2023 02:28 PM

Why are you attempting to create a vector tile package vs TileCache?

You need no delete the .OVR

Process should be :

Create Mosaic Dataset

Add Images from folders

From table or select tool, select image from each input folder and use Merge Mosaic Dataset items. This will in your case reduce the number of footprints to 3

In properties of Mosaic dataset, Set mosaic method to By Attribute, Object ID. (To keep order fixed) and Clip to footprints on

Zoom to see the imagery.

Review the footprints  and use editing tools to clip along requested extent.

Generate Tile Cache, but 'Maximum Source Cell Size' to a value about 1.5x the cell size of the largest set of images. This will ensure that overviews are not required but crated form higher resolution cache. Please see 'Serving Cached Imagery'

If you want more advanced merging take a look at the Seamline processes by which you can also defined blends etc.