From the developer: "ImageDIG consists of three independent modules which allow the user to convert 2D flat images into 3D (x,y,z) data or if a graph, convert the graph in image form into 2 dimensional ascii data for further analysis. The third module is a general purpose plotting program where the user can import either the 2D data saved above or import any 1 column or 2 column data from a file and graphically display it."