Some photographers have thrown every filter and post-processing technique at a photo and called the result art.

CNN: Art photography: When 'reality isn't good enough'

Birmingham Museum and Art Gallery conservators are employing a technique called X-ray Fluorescence (XRF).

BBC: Staffordshire Hoard X-rayed by Birmingham museum

They also contracted a touch of the Impressionism that had drifted down from France. (A good many Americans who went to Florence also made their way to Claude Monet's Giverny, where they acquired the dappling method at its source.) From the Yanks, the Italians picked up some tips on technique coming out of the newly robust art milieus of Boston, New York and Philadelphia.

WSJ: Americans in Florence | Palazzo Strozzi | The Florentine Mix | By Peter Plagens

Drawing from jazz legends such as Oscar Peterson, Art Tatum and Chick Corea, Eldar's style is marked by his incredibly precise technique and the complexity of his improvisation.

NPR: Eldar: Complex Improvisation

Clearly too he liked innovations in technique that may seem small to us but, in the tradition-bound and slow-moving context of Japanese art and design, were quite significant.

CNN: ASIANOW - TIME Asia | The Subtle Magic of Koetsu