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Method and apparatus for tone correction of a digital color image with preservation of the chromaticity of the image
Method and apparatus for tone correction of a digital color image with preservation of the chromaticity of the image
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机译：用于在保持图像的色度的同时校正数字彩色图像的方法和设备
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摘要
Midtone correction of RGB pixel values is provided, without changes in chromaticity, by multiplying each color component of a linear RGB representation by a single value. The single value corresponds to an adjustment of the original luminance of the pixel, resulting in no change to the chromaticity of the pixel.
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