Filtros

This MATLAB Code will help to determine the watermark and its extraction properties like PSNR

利用傅里叶变换的图像篡改盲检测，Matlab实现。(The Fourier transform of the image tamper blind detection, Matlab implementation.)

给出了信号压缩通常的变换-量化-编码函数。DHT函数为离散DHT变换，是FFT变换的近似，其正反变换相同，克服了FFT复系数不利于存储的缺点。LLMAX函数给出了某x序列在固定比特下的最佳量化输出。熵编码函数为霍夫曼编码。(Gives the signal compression usually transform- quantitative- coding function. DHT DHT discrete transform function, the FFT transform approximation, the same positive and negative transformation, overcoming complex FFT coefficient is not conducive to storage shortcomings. LLMAX function x is given a fixed bit sequence in the optimum quantized output. Entropy coding function as Huffman coding.)

matlab subroutine incldes limit conditions ito the global stifness matrix and load victor for a quzdrilateral element

matlab语音采集 语音采集信号 时域 频域分析(matlab voice collecting voice collecting signals frequency domain analysis)

Solar pv Maxi Series leaflet_release_Oct 12

稀疏编码在图像分类中的实现,自己写的matlab程序，带demo(sparsecoding in image classification)

本人对载波同步方面深有研究，这是研究生期间做的用插值算法实现载波估计算法，算法性能很好，接近MCRB。(I have a deep respect for carrier synchronization study, which is done during graduate interpolation algorithm used carrier estimation algorithm, algorithm performance is very good, close to MCRB.)

利用小波变换多尺度分析的特性,在小波域的各个尺度上选取不同的阈值对基本的频域谱减法进行改进,并且根据清浊音各自不同的特点,在去噪过程中加以分离,保留了语音中的清音成分,使语音更加饱满。(The use of multi-scale wavelet analysis of the characteristics of the individual in the wavelet domain scale threshold select a different frequency domain of the basic spectral subtraction to improve and, in accordance with their respective Qingzhuo sound different characteristics, in the denoising process be separated from the retained voice of the voiceless in the composition, more full of voice.)

Adds noise to processes x1(n) and x2(n), at SNR=snr, using seeds s1 and s2.(Adds noise to processes x1 (n) and x2 (n), at SNR = snr, using seeds s1 and s2.)