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Generating an image profile LUT for a N-color marking device via multi-objective cost minimization
Generating an image profile LUT for a N-color marking device via multi-objective cost minimization
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机译：通过多目标成本最小化为N色标记设备生成图像配置文件LUT
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摘要
What is disclosed is a method for profile LUT construction which uses a cost function to provide improvements to one or more image quality attributes present in printed images while imposing constraints in terms of color accuracy and spectral response to achieve a color match under various illuminants. Image quality attributes are selected. A reference profile is selected. For each node, candidate recipes are found which reproduce L*a*b* colors within a threshold em. Recipes are pruned to a subset containing recipes where a spectral difference between a predicted spectra corresponding to N color levels and a reference reflectance spectra corresponding to a spectra of a recipe produced by the reference profile, is less than a threshold. A cost function is computed and a recipe identified which minimizes the cost for this node. The process repeats for all nodes to produce a new profile LUT.
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机译：公开了一种用于轮廓LUT构造的方法，该方法使用成本函数来提供对打印图像中存在的一个或多个图像质量属性的改进，同时在颜色精度和光谱响应方面施加约束以在各种光源下实现颜色匹配。选择图像质量属性。选择参考资料。对于每个节点，找到候选配方，它们在阈值e m 内再现L * a * b *颜色。将食谱修剪为包含食谱的子集，其中对应于N个颜色级别的预测光谱与对应于由参考配置文件生成的食谱的光谱的参考反射光谱之间的光谱差小于阈值。计算成本函数并确定配方，以最小化此节点的成本。对所有节点重复此过程以产生新的配置文件LUT。
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