I have around 20-30 tiff files all georeferenced and I am trying to mosaic the data however I can't seem to remove the border of these historical scanned images. I have tried shrinking the footprint and I still can't get rid of the border. Any suggestions?
Assuming that you are using ArcGIS, here is an option if you don't script and don't mind pushing a lot of buttons..
- Create a new empty polygon feature with the projection of your referenced images
- Edit the polygon to draw a rectangle around the good part of each image individually, excluding the border areas
- Use this polygon as the mask in 'extract by mask' tool. Make sure only the polygon feature that is associated with the input raster is highlighted
- Repeat individually for each input image.
If the images are scanned images, I think you will need to crop them in order to remove the border. This can be accomplished with any image software or even microsoft paint.