srgb2rgb

按键式电话如下图所示，当按下某一个键时会产生如图所示的相应的频率模拟信号，并通过对该信号频率的检测，识别出对应的按键。试通过编写一个数字信号分析程序，模拟完成上面的功能。(Touch-tone phone as shown below, when pressing a key will be generated as shown in the corresponding frequency analog signals and, through detection of the signal frequency to identify the corresponding button. Test through the preparation of a digital signal analysis program to simulate the function of the completion of the above.)

离散对称信道的信道容量的计算离散对称信道的信道容量的计算(Discrete symmetric channel is the channel capacity of computing discrete symmetric channel calculation of channel capacity)

matlab code for frequency search method

对文件夹下的EXECL文档进行批量计算，该程序用来计算NeuroSky采集到的raw data脑电数据的小波熵，经过验证得到的结论和别人得到的结论一样(help you to calculate the wavelet entropy, the data is collected from NeuroSky Mindset, it is worth for you to read and understand it.)

1、 降噪步骤： （1） 一维信号的小波分解。选择一个小波并确定分解的层次，然后进行分解运算。 （2） 小波分解高频系数的阈值量化。对各个分解尺度下得高频系数选择阈值进行软阈值量化处理。 （3） 一维小波重构。根据小波分解的最底层低频系数和各高频系数进行一维小波重构。 matlab里面有关于去噪的函数，你可以找一下~~ 这说的只是基本原理，希望有所帮助(1, noise reduction steps: (1) one-dimensional signal wavelet decomposition. Select a wavelet decomposition level and determining, and then divide the operation. (2) high coefficient wavelet thresholding. For each decomposition scales have high coefficient selection threshold soft threshold quantization. (3) one-dimensional wavelet reconstruction. According to the lowest level of the low frequency wavelet coefficients and high frequency coefficients of each one-dimensional wavelet reconstruction. There are about denoising matlab function, you can find some ~ ~ This says just the basic principle, we hope to help)

两个正弦信号叠加白噪声 用fft进行频谱分析(failed to translate)

对正弦信号自相关和互相关运算的实验。在进行算法模拟时首先应对一个实时数字信号处理的任务选择一种方案和多种算法，用计算机高级语言如（c、Matlab等工具)验证算法能否满足系统的性能指标；然后从多种信号处理算法中找出最佳或准最佳算法。(right sinusoidal signal autocorrelation and cross correlation of the experimental operation. Conducting simulation algorithm deal with a first real-time digital signal processing tasks to choose a variety of programs and algorithms, Senior computer language such as (c, Matlab, and other tools) verification algorithm can meet the performance indicators; Then from a variety of signal processing algorithms to find the best or potential best algorithm.)

经典图像算法书Deblurring Images: Matrices, Spectra, and Filtering里面用到的程序 (Classic image algorithms book Deblurring Images: Matrices, Spectra, and Filtering )

matlab基于共生矩阵纹理特征提取，d=1,θ=0°,45°,90°,135°共四个矩阵 输入图像数据 返回八维纹理特征行向量 (Matlab co-occurrence matrix texture feature extraction, based on the d=1, theta =0 degrees, 45 degrees, 90 degrees, 135 degrees four matrix The input image data to return to the eight dimensional texture feature vector line)

matlab制作哈哈镜，实现图像的凹凸变化(matlab production distorting mirror, realize bump image changes)