中文说明：空域可视水印算法（matlab实现）， 考虑了HVS特性，可见水印嵌入同时考虑了原图像和水印图像视觉特性。
English Description：
The spatial visual watermarking algorithm (implemented by Matlab) takes HVS characteristics into account, and the visual watermarking embedding takes into account the visual characteristics of the original image and the watermark image.