watermarking

Convert from RGB to Indexed Image

地理坐标系转地磁坐标系，输出磁地方时等参量(Geographic coordinates turn geomagnetic coordinate system, the output magnetic local time and other parameters)

提取共振峰主程序，方法很特别，非常实用，欢迎查看！(Formant )

Earthworms can aerate the soil with their burrowing action and enrich the soil with their waste nutrients. Inspired by the earthworm contribution in nature, a new kind of bio-inspired metaheuristic algorithm, called earthworm optimization algorithm (EWA), is proposed in this paper. The EWA method is inspired by the two kinds of reproduction (Reproduction 1 and Reproduction 2) of the earthworms. Reproduction 1 generates only one offspring by itself. Reproduction 2 is to generate one or more than one offspring at one time, and this can successfully done by nine improved crossover operators. In addition, Cauchy mutation (CM) is added to EWA method. Nine different EWA methods with one, two and three offsprings based on nine improved crossover operators are respectively proposed. The results show that EWA23 performs the best and it can find the better fitness on most benchmarks than others.

说明：  累加弦长的参数三次样条曲线方法求插值曲线，给定顶点(cumulative long string parameter cubic spline curve interpolation methods for curve, given vertex)

利用matlab进行数字图像处理的教程 富有源代码和说明~~(Carries on digital image processing using matlab the course)

注水算法 MATLAB 实现功率最优分配(waterfilling MATLAB)

在matlab下实现多径信道仿真，计算误比特率(Matlab achieved in multi-path channel emulation, bit error rate calculation)

无线信道Matlab仿真是无线通信系统最基础的部分，信道建模和仿真对无线通信系统的研发具有重要意义，因此，对无线信道进行研究具有理论意义和实际应用价值。(Matlab wireless channel emulation is the most basic part of the wireless communication system, channel modeling and simulation of great significance for the development of wireless communication systems and, therefore, on the radio channel research has theoretical and practical value.)

Two-dimensional Discrete Wavelet Transforms (Two-dimensional Discrete Wavelet Transf orms)