autocrop

Matlab入门到精通的必备知识，希望对大家有用，谢谢！(Matlab Introduction to Mastery of the essential knowledge, useful for all, thank you!)

matlab编程，important，good，仅供参考(matlab programming, important, good, only for reference)

This paper presents a novel algorithm of hiding secret messages by applying mathematical lemmas and information theory. The proposed algorithm can hide more information with acceptable embedded rate and achieves requirements of information hiding algorithm and simply information extracting. The main idea is applying modern algebra to solve the information hiding problem in multimedia. In order to prevent some attacks on stganography, hidden initial bits of image data pixels are chosen randomly. The extracted information are achieved without the reference of the original image and extracted keys. The experiment results show that our approach is effective and reliable.

FEM matlab program for truss 2D problemes

说明：  用于计算表面等离子体共振中常用的金属膜层的介电常数值(Surface plasmon resonance is used to calculate the metal film layer is commonly used in the dielectric constant)

工厂日历，类似于google的 calendar功能比较强大(the shop calendar)

DTMF的GUI界面生成，显示电话按键，生成信号，画出功率谱(GUI interface to generate DTMF, display the phone keys, generates a signal, draw power spectrum)

matlab reading file & segmentation example

包络曲线的求法 matlab中的一种求上下包络的算法，特别经典的两种算法(Envelope curve for France matlab down in one envelope seeking algorithms, especially the classic two algorithms)

DOA估计的经典算法esprit算法的求根算法，在matlab中能够完全仿真。(DOA estimate of the classical esprit of the algorithm is extract roots algorithm, in matlab simulation can completely.)