基于阿尔法形态的显示器三维色域体积快速算法

随着各种宽色域显示设备的出现,越来越需要高效准确的色域比较评价方法。三维色域由于包含了亮度信息,与二维色域相比,能够更全面地展示、比较色域差异。但由于其形状不规则,三维色域的计算较困难,高计算复杂度限制了三维色域评价在实时性要求较高的工程领域的应用。实现了基于阿尔法形态的三维色域体积计算方法。实验结果表明,通过仔细选择半径参数,能够以较低计算复杂度准确计算不规则三维色域体积。与基于准蒙特卡洛的体积计算方法相比,基于阿尔法形态的方法更适合实时应用。

3D Color Gamut Volume Calculation Based On Alpha Shapes

With the emerging of different kinds of wide color gamut displays, evaluation and comparison of their color gamut are in increasing need. 3D color gamut has been known as a better way to demonstrate gamut difference and provide more information than conventional 2D color gamut can do as it incorporates luminance information. Because of its irregular shape, the calculation of 3D color gamut is relatively difficult and complex. High computational complexity restricts the application of 3D color gamut evaluation in real time cases. In this paper, we implemented Alpha shapes algorithm on PC for 3D color gamut volume calculation. Experimental results show that by carefully choosing the radius parameter, this method can accurately compute the volume of the irregular shaped gamut with relatively low computational complexity. Compared with quasi-Monte-Carlo-based method, Alpha-shapes-based method is more suitable for real time cases.