reverse some of the tones of (a negative or print) and introduce pronounced outlines of highlights, by exposing it briefly to light, then washing and redeveloping it
become overexposed;
"The film solarized"
overexpose to sunlight;
"be careful not to solarize the photographic film"
expose to the rays of the sun or affect by exposure to the sun;
"insolated paper may turn yellow and crumble"
"These herbs suffer when sunned"
