How can i expand extent of a raster image with Python as the image shown in below. I have the coordinate information of a raster image such as Xmin Ymin Xmax Ymax,how can i expand its extent based on the specified size(Ex, expand 10px or 1px)? I know it can be easily implemented on AML through the command such as setwindow, con(isnull ...etc, but i have no idea on Arcpy. Do anyone know about it?
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