| 摘要: |
| 目的 提出一种新的数字输出设备色域边界描述算法模型,以实现数字输出设备色域的三维立体准确再现和色域体积的精确求取。 方法 通过空间区域分割算法确定 Epson Stylus Pro 7910 打印机呈色范围的最佳颜色空间分区,利用四面体网格剖分技术对各分区色域边界进行描述,同时从色域体积、边界点再现精度等方面,对该方法和基于改进凸壳算法下的设备色域匹配适性进行对比分析。结果 该色域边界描述新算法模型在描述的准确性和再现精度方面, 明显优于改进后的凸壳算法。结论 该算法下各边界颜色点再现精度平均 驻E 和最大 驻E 均在 2 以内,并且设备色域体积明显大于改进凸壳算法下的设备色域体积。 |
| 关键词: 空间区域分割 四面体网格剖分 色域边界描述 |
| DOI： |
| 分类号:TS801.3 |
| 基金项目: |
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| Color Gamut Descriptions Based on Space Region Partition of Tetrahedron Grid Subdivision |
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KUANG Sheng-kun, WANG Xiao-hong, LYU Zhao-feng
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University of Shanghai for Science and Technology, Shanghai 200093, China
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| Abstract: |
| Objective To propose a new gamut boundary description algorithm model of digital output device, and achieve the accurate three-dimensional reproduction and obtained the gamut volume of digital output devices' gamut. Methods The optimal color space partition was determined that the color range of Epson Stylus Pro 7910 printer was described by space region partition, and the boundary of every partition was described. The gamut matching adaptability was compared and analyzed from the aspect of the color gamut volume and the accuracy of reproduced boundary points based on the new algorithm and improved convex hull algorithm. Results Analysis results showed that the new algorithm model of color gamut boundary descriptions proposed in this paper was superior to the improved convex hull algorithm in the accuracy and precision. Conclusion The reproduced accuracies, the mean and max 驻E of boundary points, were both less than 2 and the color gamut volume of the device was obviously better. |
| Key words: space region partition tetrahedron grid subdivision gamut boundary description |
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