 After a decade in England, Barnor went back to Ghana, where he set up the country's first colour processing facilities.For the following 24 years in Ghana he worked as a professional photographer, was the official African representative for Agfa-Gevaert (at the time the leading company for imaging technology), and was also given work by the American embassy and Ghanaian government agencies under the auspices of J. J. Rawlings.In 1994, Barnor returned to London, where his work latterly began to be discovered by a new wider audience, through exhibitions at venues such as Black Cultural Archives (2007), Rivington Place (2010), and elsewhere.