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Jsteg
Jsteg算法实现,Jsteg是一种基于JPEG的常用信息隐藏算法步骤如下:
首先,把掩体图像分为不重叠的8*8的子块,对每一子块进行DCT并对变换得到的DCT系数进行量化 其次,将待隐藏的信息进行加密,将加密结果嵌入到量化后值不为0,1或-1的DCT系数的最
低有效位(LSB)中,其嵌入顺序是按zigzag扫描顺序进行的。最后,用JPEG的嫡编码(包括哈夫曼编码,游程编码及DPCM)对嵌入秘密信息后的每一子块进行编码,从而得到一个含有秘密信息的JPEG stego文件。(Jsteg Algorithm)
- 2016-03-30 21:45:43下载
- 积分:1
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minimum-watershed
实现粘连分割,对有粘连的物体分割效果很好,使用了局部极值结合分水岭算法(Achieve adhesion segmentation, to have adhesion object segmentation effect is very good, the use of the local extremum combined with watershed algorithm
)
- 2012-08-26 16:22:23下载
- 积分:1
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ICP算法matlab实现
说明: 很好地实现了激光雷达点云的ICP配准,附带数据(ICP registration of LIDAR point cloud is well realized)
- 2020-11-30 14:49:27下载
- 积分:1
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motion
运动检测方法的实现,
这是最原始的方法实现,根据不同的应用可以对其进行相应的改进(Motion detection method realize that this is the most primitive method, according to different applications can be improved accordingly)
- 2008-07-03 09:29:19下载
- 积分:1
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脉冲压缩
脉冲压缩技术是匹配滤波理论和相关接收理论的一个很好的实际应用。它的提出很好的解决了这样的一个问题:在发射端发射大时宽、带宽信号,以提高信号的速度测量精度和速度分辨力,而在接收端,将宽脉冲信号压缩为窄脉冲,以提高雷达对目标的距离分辨精度和距离分辨力(Pulse compression technology is a good practical application of matched filtering theory and related receiving theory. It solves such a problem very well: transmitting large time-width and bandwidth signals at the transmitter to improve the speed measurement accuracy and speed resolution of the signal, and compressing the wide pulse signal into narrow pulse at the receiver to improve the range resolution accuracy and range resolution of radar to target.)
- 2019-03-18 09:45:28下载
- 积分:1
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MRF-based-image-segmentation
基于马尔科夫随机场的SAR图像分割方法,对应于采用最大后验概率准则对SAR目标切片图像分割,采用聚类分析算法求解。(SAR image segmentation based on Markov random fields, which corresponds to using the maximum posterior probability criteria for SAR Target Chip Image segmentation using cluster analysis algorithm for)
- 2012-07-20 18:59:55下载
- 积分:1
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fenshuilingsuanfa
说明: 基于分水岭算法和图论的图像分割,所使用的方法为分水岭算法和Normalized Cut方法(Based on watershed algorithm and graph theory, image segmentation, the method used as a watershed algorithm and Normalized Cut method)
- 2010-04-27 10:18:59下载
- 积分:1
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Untitled3
运用matlab提取视频,显示出视频图像的图像特征,并以柱状图形式显示(Use matlab extract video shows the image feature of the video image, and is displayed in histogram form)
- 2013-03-07 19:36:15下载
- 积分:1
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lightcomplement
基于光线补偿的人脸检测。首先对图像进行光补,在此基础上结合肤色和发色进行人脸检测。(Light compensation based on face detection. First, the image light make up, in this based on the combination of color and hair color for face detection.)
- 2021-05-12 20:30:02下载
- 积分:1
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CT_MATLAB_v0
说明: 基于压缩感知理论的目标跟踪算法,实现对可视目标的稳健跟踪(Target tracking algorithm based on compressed sensing theory)
- 2019-06-19 17:10:10下载
- 积分:1