solarise

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 overepxosed

• “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”