| 摘要 |
<p>The present invention relates to an apparatus and method for image processing allows for achievement of improved prediction efficiency in weighted prediction of chrominance signals. Upon receiving reference image pixel values referred to by motion vector information from a motion compensator (82), a luminance weighted motion compensator (96) uses weight factors and offset values from a luminance weight/offset calculator (94) to perform weighted prediction processing on luminance signals and chrominance signals (in case of RGB). Upon receiving reference image pixel values referred to by motion vector information from the motion compensator (82), a chrominance weighted motion compensator (97) uses weight factors and offset values from a chrominance weight/offset calculator (95) to perform weighted prediction processing on chrominance signals (in case of YCbCr). The present invention is applicable to, for example, an image coding apparatus for performing encoding based on H.264/AVC standard.</p> |
