I have a DEM (1 m resolution, Z in meter) derived from lidar data.
When I run Slope from ArcToolBox (Spatial Analyst, Surface) and i compare my result with the Slope function from Image Analysis tools, i don't get the same result slope image.
The second one is approximately 80% higher.
I've found the help for "How Slope works" in Spatial Analyst but nothing in Image Analysis.
Does anyone know why I do not get the same results?