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Mosaic Rasters function

The Mosaic Rasters function creates a mosaic image out of multiple images. When there is overlap between the images, there are several methods you can choose from to determine which images are displayed.

The inputs for this function are the following:

  • Rasters—Select the raster datasets you want to mosaic together to form one image.
  • Operation—This is used to resolve any conflict when you have parts of two or more images that overlap. The options include the following:
    • First—Use the pixels from the first image in the list of images overlapping a given area.
    • Last—Use the pixels from the last image in the list of images overlapping a given area.
    • Minimum—Take the lowest valued pixel of all the overlapping layers. Using this option means you have no guarantee of looking at the pixels of just one image in the overlapping area but rather a combination of potential layers.
    • Maximum—Take the highest valued pixel of all the overlapping layers. Using this option means you have no guarantee of looking at the pixels of just one image in the overlapping area but rather a combination of potential layers.
    • Mean—Calculate an average of the overlapping pixels.
    • Blend—Calculate an average of the overlapping pixels by giving more weight to pixels that are closer to neighboring images so the output is a smoother image.

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