| http://www.w3.org/ns/prov#value | - Thus, in the following, both will be described as the gradation correction process. [0016] In an image where the distribution of luminance is extremely skewed and no object exists other than a person, such as a portrait image photographed at night (hereinafter referred to as a ???night portrait image???), when the dynamic range is set for the whole image as proposed in the Japanese Laid-Open Paten
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