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首页> 外文会议>Mexican international conference on artificial intelligence >Behavior of the CIE L*a*b* Color Space in the Detection of Saturation Variations During Color Image Segmentation
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Behavior of the CIE L*a*b* Color Space in the Detection of Saturation Variations During Color Image Segmentation

机译：CIE L * a * b *颜色空间在彩色图像分割过程中检测饱和度变化的行为

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摘要

In this paper, a study of the behavior of the CIE L*a*b* color space to detect subtle changes of saturation during image segmentation is presented. It was performed a comparative study of some basic segmentation techniques implemented in the L*a*b*, RGB color space and in a modified HSI color space using a recently published adaptive color similarity function. In the CIE L*a*b* color space we have studied the behavior of: (1) the Euclidean metric of a* and b* color components rejecting L* and (2) a probabilistic approach on a* and b*. From the results it was obtained that the CIE L*a*b* color space is not adequate to distinguish subtle changes of color saturation under illumination variations. In some high saturated color regions the CIE L*a*b* is not useful to distinguish saturation variations at all. It can be observed that the CIE L*a*b* has better performance than the RGB color space in low saturated regions but it has worse performance in most high saturated color regions; all high saturation regions are very sensitive to changes in illumination and a minimum change causes failures during segmentation. The improvement in quality of the recently published color segmentation technique to distinguish subtle saturation variations is substantially significant.
机译：在本文中，对CIE L * a * b *颜色空间的行为进行了研究，以检测图像分割期间饱和度的细微变化。使用最近发布的自适应颜色相似度函数，对在L * a * b *，RGB颜色空间和修改后的HSI颜色空间中实现的一些基本分割技术进行了比较研究。在CIE L * a * b *颜色空间中，我们研究了以下行为：（1）拒绝L *的a *和b *颜色分量的欧氏度量，以及（2）关于a *和b *的概率方法。从结果中得出，CIE L * a * b *颜色空间不足以区分照明变化下的颜色饱和度的细微变化。在某些高饱和色区域中，CIE L * a * b *根本无法区分饱和度变化。可以看出，在低饱和度区域中，CIE L * a * b *具有比RGB颜色空间更好的性能，但在大多数高饱和度颜色区域中却具有较差的性能。所有高饱和度区域对照明的变化非常敏感，最小的变化会导致分割过程中的故障。最近发布的用于区分细微的饱和度变化的颜色分割技术的质量改进非常重要。

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