“Digitizer” redirects here. This article covers the general concept of digitization- for other uses, see Digitizer (disambiguation). Digitizing or digitization is the representation of an object, image, sound, document or a signal by a discrete set of its points or samples. The result is called digital representation or, more specifically, a digital image, for the object, and digital form, for the signal. Strictly speaking, digitizing means simply capturing an analog signal in digital form.