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High dynamic range is a dynamic range higher than usual, synonyms are wide dynamic range, extended dynamic range, expanded dynamic range.
The term is often used in discussing the dynamic range of various signals such as images, videos, audio or radio. It may apply to the means of recording, processing, and reproducing such signals including analog and digitized signals.
The term is also the name of some of the technologies or techniques allowing to achieve high dynamic range images, videos, or audio.
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