Nondiagonal color correction
Nondiagonal color correction
复制标题
非对角色彩校正
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
Hao Jiang
中科院分区：
文献类型：
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作者：
B. Funt;Hao Jiang
介绍了一种新的颜色校正方法，该方法预测场景光源的颜色变化将如何影响相机的RGB响应。与对角变换颜色校正方法一样，新方法只需要3个参数。因此，它只需要知道两个光源的RGB颜色。该方法使用由3个基变换组成的3维线性模型对3 × 3线性变换的9个参数进行建模。实验表明，该方法的工作优于标准的对角线模型，除非相机传感器是非常尖锐的峰值，在这种情况下，性能基本上是不变的。
A new color correction method is introduced which predicts how changing the color of the scene illuminant will affect a camera's RGB response. Like diagonal transformation color correction methods, the new method requires only 3-parameters. It therefore requires only the RGB color of the two illuminants be known. The method models the 9-parameters of a 3-by-3 linear transformation using a 3-dimensional linear model composed of 3 basis transformations. Experiments show that the method works better than the standard diagonal model unless the camera sensors are very sharply peaked, in which case the performance is essentially unchanged.