如权利要求7所述色度计，其中所述的滤波器包括一个双层和三个单层。
The colorimeter of claim 7, wherein the filters include one double layer and three single layers.
与同类滤波器相比，在抑制颜色偏差、保护图像色度信息方面的性能得到提高。
It is proved that this filter has better properties in restraining color distortion and preserving chromaticity information of color image in comparison with other vector median filters.
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