Example of digitizing positions in a photocopy or laserprint. Digitized positions on different pages can be visualized and superimposed digitally to link copies or prints to the same machine or eachother.
Printer defects are another example. Defects have been marked with the Digitization plug-in and the measured points have been used to create a vectorized overlay (click on the image to see the overlay). The overlay shows the marks and the results of the analysis: straight lines fitted through the defects.
The relative positions of the defects can be compared to link different documents to eachother or to a suspected printer.