Then,by exploiting Human Visual System(HVS) and characteristic of digital image processing,watermark is embedded into the specific DCT coefficients of the original image.

• 结合人类视觉系统(HVS)的特性和数字图像常规处理特点,对水印在原始宿主图像DCT域中的嵌入位置进行选择,利用扩频原理实现水印的嵌入。