matlab-examples

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.)

GCP是地面控制点的缩写，主要是处理地面控制点的类，包括控制点的读取处理以及写出。(GCP is an acronym for ground control points, mainly handling ground control points, including read and write process control points.)

对于数据进行主成分分析，并对每一组分的得分进行了计算(Principal component)

这是基于GDIM模型的彩色图像序列光流场，所用的颜色模型为RGB。(This optical flow is from color image sequences based on GDIM model,and the color model is RGB.)

关于matlab很好的一本教成，里面内附参考程序，哈哈，对新手的有很大的帮助。(Matlab good on a教成, which containing a reference to procedures, ha ha, for the novice of great help.)

OFDM到AFDMA的映射（matlab）(OFDM to AFDMA mapping (matlab))

Matlab GUI编程,详细介绍GUI编程方面的问题(Matlab Gui programming)

获取FFT处理后信号的能量，通过matlab编程实现。(FFT signal processing to obtain energy through matlab programming.)

在matlab中将三维坐标转换成经纬度坐标或将经纬度坐标变成三维坐标(Matlab will be at three-dimensional coordinates into latitude and longitude coordinates or latitude and longitude coordinates into a three-dimensional coordinates)

this program compare the Locally Weighted Linear Regression with three diferrent kernel function (gaussian, logistic basis, and Reciprocal Multiquadric) also compare locally weighted by simple Linear Regression.