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Color image reproduction of scenes with preferential color mapping and scene-dependent tone scaling
Color image reproduction of scenes with preferential color mapping and scene-dependent tone scaling
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机译:通过优先的颜色映射和与场景有关的色调缩放功能对场景进行彩色图像再现
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摘要
A method for enhancing the hue and lightness characteristics of a digital color image, the digital color image having pixel values from which digital luminance and color difference values can be deduced, includes the steps of: deducing digital luminance and digital color difference values for pixels of the digital color image; using the pixels of the digital color image to calculate an image dependent transform; using the image dependent transform to modify the digital luminance values for pixels of the digital color image to form modified luminance values; calculating a color transform that modifies the original digital color difference values in a manner that consistently and smoothly moves the values toward or away from predetermined digital color difference values; and using the color transform to modify the original color difference values for pixels of the digital color image to produce modified color difference values.
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