数字博物馆文物图像真实性再现仿真研究

摘要

A method for authenticity reappearance of cultural relic image is proposed based on trilateral filtering.Firstly,the enhancement process for V channel of luminance component in HSV color space of cultural relic image is carried out,and the enhancement adjustment factor is introduced.Then,the illumination compensation for signal of each channel carried out,and the trilateral filtering is introduced into extraction process of luminance image.Moreover,the optimal neighborhood range of image pixel is worked out via carrying out angle incline for filter window,and a binary constraint function is introduced to carry out restrictive smoothing for image border.Finally,the reappearance is completed.Experimental results show that the method has good effect of reappearance.It can highlight detail information effectively.%对数字博物馆文物图像的真实性再现的研究,能够有效提升文物图像的色彩质量.对文物图像进行真实性再现,需要先计算出文物图像像素最佳邻域范围,再进行图像边缘限制性平滑处理,完成文物图像的真实性复原.传统方法先对不同维度的图像进行转换,进而引入人眼视觉系统特征,但忽略了对图像进行平滑处理,导致图像再现效果不理想.提出基于三边滤波的文物图像真实性再现方法.上述方法先在文物图像HSV色彩空间对亮度分量V通道进行增强处理,同时引入增强调整因子,对各通道信号进行光照补偿,将三边滤波技术引入到亮度图像的提取过程中,通过对滤波窗口进行角度倾斜,计算出文物图像像素最佳邻域范围,引入一个二值限制函数进行图像边缘限制性平滑处理,完成文物图像真实性再现.实验结果表明,所提方法处理后的文物图像再现效果较好,细节信息也得到有效地突出.