##HIT信息隐藏技术实验(JPEG的F3隐写)
简单实现了灰度图的隐写,将图像读入之后转成灰度图,分成8*8的块,对每个块完成隐写
同时实现了隐写内容的读取,这一部分内容只在main函数里面实现,即我在对隐写完的像素矩阵立刻进行了信息提取,没有实现对隐写后的图片的信息提取,原因是我发现opencv的imwrite函数会更改一些像素的值,导致提取任务的失败。
HIT信息隐藏技术实验(JPEG的F3隐写)
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