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Image processing apparatus that reduces noise, image processing method that reduces noise, electronic camera that reduces noise, and scanner that reduces noise
Image processing apparatus that reduces noise, image processing method that reduces noise, electronic camera that reduces noise, and scanner that reduces noise
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机译：降低噪声的图像处理装置，降低噪声的图像处理方法，降低噪声的电子照相机以及降低噪声的扫描仪
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摘要
In a noise reduction apparatus or method, at least one of a luminance noise estimate value estimating a luminance noise of a target pixel and a chrominance noise estimate value estimating a chrominance noise of the target pixel is estimated in accordance with an average of luminance signals allocated to a first set of pixels including the target pixel. A noise reduction is performed to a selected one of the luminance noise and the chrominance noise one target pixel by one target pixel based on a corresponding one of a first set of information including the average of luminance signals and the luminance noise estimate value and a second set of information including an average of chrominance signals and the chrominance noise estimate value, the average of chrominance signals being allocated to a second set of pixels including the target pixel.
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