Mosaic
Mosaicking is a final step in the image preprocessing sequence often involves subsetting the image to reduce the data volume, layer stacking to combine multiple separate bands or layers in a single image, and/or mosaicking multiple images to cover a broader area.
Subsetting may be used to reduce the spatial extent of an image, cropping the image to cover only the specific area of interest, and it may also involve selecting only certain spectral bands.
The subset images need to be precisely georeferenced so that after Mosaicking the boundary between two subsets can be avoided.
Steps
Once opened, from the View group on the Home tab select the Swipe tool to easily see where the two images overlap.
Now start the mosaic workflow.
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From the Raster tab, select Mosaic → Mosaic Pro.
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Add two Subset images (Georefereced images).
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If necessary, navigate to the directory that contains the first image, select it but do not click OK.
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Add two subset images → Process → Run mosaic.
- Moasaic image will be saved in the output folder.