I am trying to do an analysis using historical Corona images. The images are scanned, so there is a black boarder around the actual image. When I click on the border with the identify tool, the pixel values are either 1. NoData 2. Pixel values between 0-7.
I would like to create a seemless mosaic using 5 Corona images. To do this, it seems to me that I need to remove the border surrounding the actual image. How can I do this?
I have already added an attribute table for all of the rasters. This attribute table contains only objectID, value, and count.