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saki22oimo

检查图片隐藏式水印

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  •   saki22oimo May 26, 2021 4158 views
    This topic created in 1797 days ago, the information mentioned may be changed or developed.

    有没有方法或软件可以检查图片中的隐藏式水印?有没有办法生成许多不同类别的分析图像然后目视检查呢?

    8 replies    2021-05-26 18:26:12 +08:00
    imn1
        1
    imn1  
       May 26, 2021
    N
    “隐藏式”指的是什么? steganography 这种几乎无解

    如果只是目测难以看到的水印,那用图片分析工具很容易找到,不是事,最简单的方法就是颜色通道,调一下颜色就见到了
    EggtartZ
        2
    EggtartZ  
       May 26, 2021
    频域水印?
    saki22oimo
        3
    saki22oimo  
    OP
       May 26, 2021 via iPhone
    @EggtartZ 是的
    EggtartZ
        4
    EggtartZ  
       May 26, 2021
    @saki22oimo #3 那 OpenCV 就行了吧,如果要肉眼检查的话
    Codewj
        5
    Codewj  
       May 26, 2021
    https://blog.csdn.net/welggy/article/details/114655285?spm=1001.2014.3001.5501
    那当然是从盲水印的实现方案找解决方案了
    garvan
        6
    garvan  
       May 26, 2021
    试一下写个变换函数库?对每个来的图像都生成对应的变频图,然后根据识别效果手工调整变换函数优先级
    garvan
        7
    garvan  
       May 26, 2021
    检索了一下网上的加水印方法大多都是傅里叶或者 dct,这两个优先度设置最高应该可以应付大多数情况了
    iminto
        8
    iminto  
       May 26, 2021
    我知道的两种水印技术,一种是基于频域的傅里叶和基于 LSB 的隐写。

    这基本能覆盖大多数场景了,那么自然就有 80-90%的检测成功率了
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