将图像作为水印嵌入到音频中,作为防伪标志-Image as a watermark embedded in the audio, as a security mark

matlab实现的音频水印和图像水印代码 包括回声和量化方法 扩频水印以及最低位编码 附实验报告-Matlab audio watermarking and image watermarking code Including the echo and quantitative methods Spread spectrum watermarking and lowest coding experiment report