发明名称 Image processing apparatus and image processing method
摘要 An image processing apparatus for performing image processes corresponding to input signals of multiple types, includes a luminance correcting unit that performs correction process on an input signal so as to correct for display luminance, a luminance decreasing unit that multiplies the input signal with a gain smaller than "1", and a gamma correcting unit that performs gamma correction with a gamma value smaller than "1" on the input signal. The luminance decreasing unit and the gamma correcting unit are combined together to execute a first correction process that decreases a luminance of a highlight portion of an image while maintaining or increasing the luminance of a halftoned portion of the image, and the luminance decreasing unit executes a second correction process that decreases the luminance for substantially overall tone levels of the image.
申请公布号 US7400363(B2) 申请公布日期 2008.07.15
申请号 US20050049676 申请日期 2005.02.04
申请人 CANON KABUSHIKI KAISHA 发明人 SUGA KAZUMI;INOUE KENJI
分类号 H04N5/57;G09G3/20;G09G5/00;G09G5/10;H04N5/20;H04N5/202;H04N5/46;H04N5/66;H04N9/64 主分类号 H04N5/57
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