There are many available approaches in SA. Try a high pass filter (Neighbourhood/Filter). Also FocalStats with custom kernel files could be the answer. In the Surface box, Curvature enhances the differences between nearby cells. Cheers, Neil
Hello Kevin. Sorry but I seem to have lost the paper now. It mentioned using a 7x7 edge detection filter to detect archaeological features.
Thanks GSCUser85 I'll have a look at them.
I actually found you can use the Convolution Function in Raster Functions. However I'm not sure how to interpret the imagery after it is produced. Ideally I'd eventually like to end up with a vector layer showing the straight lines.