Realize the embedding and extraction of direct sequence spread spectrum watermark. The binary watermark sequence is generated based on the message to be embedded, the spread spectrum code is generated, and the watermark sequence is generated by message sequence modulation. Each carrier image pixel of gray image is processed in turn, and the embedding modification is completed according to the corresponding position watermark sequence.

Filename	Size	Update
直接序列扩频水印的嵌入与提取\have_origin.m	1974	2020-02-05
直接序列扩频水印的嵌入与提取\logistic.m	356	2020-02-02
直接序列扩频水印的嵌入与提取\no_origin.m	2392	2020-02-03
直接序列扩频水印的嵌入与提取	0	2020-05-07

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