加法性质 meaning in Chinese

addition property

First , the watermarked image minus the original image is the watermark information . according to the addition property of the fourier transform , a change of spatial domain will cause a change in the frequency domain , which will allow watermarks to be extracted from the watermark information . then , the watermark information is scaled down and embedded in one part of the x - coordinate of the original mesh
提出了三维网格模型盲水印算法：利用fourier加法性质将水印间接嵌入网格模型顶点坐标上，即先将水印嵌入一个稳定图像中，然后将嵌入水印后的图像和原始图像进行比较得到水印信息，最后将水印信息嵌入网格模型顶点坐标上得到嵌入水印的三维网格模型。