-
Information-hiding
基于 DCT(离散余弦变换 )域的信息隐藏算法是目前应用最广的变换域算法 ,此类算法的最大不足是嵌信息量小。通过分析 DCT域隐藏算法隐藏容量少的原因 ,提出了一种大容量的 DCT域信息隐藏算法。算法首先对载体图像进行频谱均匀化处理 ,然后对图像进行全局 DCT变换 ,并将隐藏信息嵌入到载体图像的低频 DCT系数上 ,信息嵌入采用分段量化的方法实现 ,提取隐藏信息时不需要原始载体图像。实验结果表明 ,该算法的嵌入容量大 ,不可感知性好。(Based on DCT (discrete cosine transform) domain information hiding algorithm is the most widely used transform domain algorithms, the largest of these algorithms is the lack of a small amount of information embedded. Hiding Algorithm for DCT domain by analyzing the hidden reasons for the low capacity, a large capacity of information hiding algorithm for DCT domain. Firstly, the spectrum of the carrier image homogenization, and then the image is a global DCT transformation, and hidden information embedded into the image of the low-frequency DCT coefficients, the information embedded in the methods used to achieve sub-quantization, extract hidden information without the original Vector image. Experimental results show that the algorithm embedding capacity, can not be perceived good.)
- 2021-04-06 09:29:03下载
- 积分:1
-
GRANOM
可以建立二维剖面模型,并计算重力数据,对计算值和观测值做比较,。(It calculates the gravuty anomaly associated to the provided geometries, and compares calculated and observed data.)
- 2014-10-10 22:58:10下载
- 积分:1
-
fwdcdmafinal
CDMA transceiver Code in MATLAB
- 2014-01-16 00:44:55下载
- 积分:1
-
multiWaitbar
同时进行控制多个窗口的进度条,需要的下载看一下是个好东西
- 2010-07-04 16:47:32下载
- 积分:1
-
Matlab
《MATLAB程序设计教程》电子教案,离散时间信号与系统的Matlab实现(" MATLAB Programming Guide" e-lesson plans, discrete-time signal and system Matlab Implementation)
- 2010-09-14 09:27:14下载
- 积分:1
-
gui
this is the example for matlab GUI
- 2011-08-13 08:44:37下载
- 积分:1
-
digital-image-processing
图像处理的编程入门,包括去噪,滤波,膨胀,腐蚀,边缘检测等,十分简单易学(Introduction to image processing programming, including denoising, filtering, expansion, corrosion, edge detection, very easy to learn)
- 2013-04-09 10:59:09下载
- 积分:1
-
bimagegrowre
matlab code for image growing
- 2010-11-09 20:01:43下载
- 积分:1
-
mpc_1
this is mpc example ....
- 2014-01-30 03:41:55下载
- 积分:1
-
NeuralNetworkTheoryandMATLAB7
神经网络理论与MATLAB7实现 很详细 对学习神经网络很有帮助(Neural Network Theory and MATLAB7 to achieve a very detailed very helpful for learning neural networks)
- 2009-12-12 17:42:02下载
- 积分:1