An expert in colour science has hit upon an intriguing idea on why Van Gogh painted as he did - and his insights could change the way we view the Master's art.
It has long-been rumoured than Van Gogh was colour-blind, and this theory is often cited as to why the artist painted with such bold strokes and vibrant, occasionally quirky hues.
When Japanese-based Kazunori Asad, giving a speech in Hokkaido about vision deficiencies, found himself viewing Van Gogh's work in a room illuminated to give the impression of colour-blindness, he found the pieces of art transformed into even better pieces of art.