A taxi app is taking a stand against a world of driverless cars by projecting the faces of London cabbies onto city landmarks.

Hailo is celebrating the role of the taxi driver in the face of driverless car technology by launching 'Face to Faceless' driver portraits.

Portraits of London taxi drivers will be projected on landmarks frequently used to navigate the capital by visitors.

'Face to Faceless' was unveiled on the same day George Osbourne announced an extra £100 million of funding for driverless cars.

Hailo is arguing that the knowledge and experience of the traditional taxi driver is something that can't be replaced by technology.

Hailo chief marketing officer Gary Bramall said: "People don't want robots; they need to know that their driver will get them from A to B safely and securely.

"Nothing can replace the relationship a passengers builds with their drivers and we need to stand up for drivers."

Driver portraits will appear on Marble Arch, in Covent Garden, Waterloo Station and in China Town.

Each driver has been captured in a photographic style designed to represent their knowledge and the stories they can tell about London.

"Cabbies have been a part of this city for hundreds of years and the move towards driverless cars is killing not only an entire profession, but a huge part of Britain's heritage.

"By heroing cab drivers and projecting their faces over iconic London landmarks, we hope passengers remember there's more to a journey than just the vehicle."

Greenwich is one of four hubs in the UK for the testing of driverless car technology.

Amongst the vehicles being tested in Greenwich is the Meridian Shuttle, designed to operate as a mode of public transport which passengers will be able to summon through an app.