jianjiedianliukongzhi

用matlab实现的基于LSB的数字水印算法。算法可以在BMP灰度图像中嵌入水印，水印信息为二值图像，并将其扩展到与原始图像同样大小，进行重复嵌入，提高鲁棒性。同时算法中给出了PSNR值以评价水印图像的效果，(Using matlab realize the number of LSB-based watermarking algorithm. Algorithm can be embedded BMP gray image watermark, watermark information for the binary image, and its expansion to the original image the same size, the repetition of embedding, improve robustness. At the same time algorithm PSNR values are given to evaluate the effect of watermark images,)

In an image edge is more important to interpolate the missing pixel values. In similarity algorithm edge is detected using the unified high frequency map. Based on this the missing green pixels are interpolated by taking the average of surrounding values. Then the missing red and blue values are interpolated similarly.

本人编写的绘制离散信号在滤波前后的频谱图(I prepared by drawing discrete signal frequency spectrum before and after filtering)

用c++编的matlab程序.是变步长方程解法.希望能给大家帮助,都是老师给布置的作业!谢谢!(using Matlab c addendum to the proceedings. Is a variable step equations. I hope that it provides help, teachers are to the layout of operations! Thank you!)

使用matlab编写的各种类型的遗传算法，每一种都有注释说明 可以复制到M文件中运行(Matlab prepared using various types of genetic algorithms, each with explanatory notes can be copied to M to run in files)

利用卫星水色数据进行可视化，包括对图像的修饰和处理，数据插值。(Use of satellite ocean color data visualization, including image retouching and processing, data interpolation.)

基于马尔科夫链概念，5*5矩阵的概率转移矩的matlab实现(Based on the concept of Markov chain, the realization of the 5* 5 matrix s transfer probability matrix in matlab)

OFDM系统级的仿真，里面涉及到卷积编码，交织，qpsk调制等(OFDM system-level simulation, which relates to convolutional coding, interleaving, qpsk modulation)

方向图合成GSC 自适应阵列处理P44 广义旁瓣相消器很好的解释了最优波束形成器的干扰抑制原理。内含 MVDR和GSC体系的波束合成，第三副图是静态方向图和干扰特征波束方向图。(Pattern synthesis of GSC adaptive array processing P44 generalized sidelobe canceller good explanation of the optimal beamforming device interference suppression principle.System containing MVDR and GSC beamforming, the third vice map is a static pattern and interference characteristics of beam pattern.)

独立成分分析中，将各个音频混合之后再将每个成分分离出来，并与PCA的结果做比较。(complete ICA，and compare with PCA。)