The Gallery holds the most extensive collection of portraits in the world. Search over 215,000 works, 150,000 of which are illustrated from the 16th Century to the present day.

Advanced Collection search

Digital imaging

Developed in the 1970s, digital imaging is the conversion of images into binary language to be stored on a computer's memory. Images can be captured by scanning or by a digital camera - video images can also be digitized. In digital cameras film is replaced by a small chip (CCD) which reacts to light like film, but instead of storing an image chemically, converts it into digital form. The data that makes up this image can be viewed on a computer screen as a pattern of tiny squares called pixels. Through the use of various kinds of software it can be stored, transferred into a multimedia programme, manipulated, enhanced, or simply printed out.

Previous 1 OF 2 Next

Elton John
by Terry O'Neill
NPG x126151

Mohamed al-Fayed
by Robin Laurance
NPG x128605

Adam Faith
by Max Adelman
NPG x132265

Alan Sugar
by Harry Borden
15 March 2001
NPG x127003

by Sal Idriss
26 July 2003
NPG x126229

Chefs' Last Supper
by John Reardon
NPG P1121

Sir Anish Kapoor
by Trevor Ray Hart
NPG x126336

Alan Yau
by Palani Mohan
November 2004
NPG x128070

Previous 1 OF 2 Next



Gallery blog

Read our latest news and have your say.

Join the conversation

Tell us More about our silhouettes, photograph of Hubert Leslie, Silhouettist

Identify our Silhouettes

Join enthusiastic contributors who have already identified 155 sitters.

Help transcribe signatures

Tell us More about our Silvy sitters, photograph of Camille Silvy, photographer with boy

Tell us more about our Silvy sitters

Help us identify the sitters who visited Camille Silvy’s photographic studio during the 1860s.

Identify our sitters