digital_image_processing_MATLAB

frequency estimation using MVDR algorithm

小电流中性点接地故障，暂态matlab simulink 仿真。(small current short cut problem simulation)

Linear Algebra - Math book

用matlab实现读入图像，并显示图像，及存取图像中的任意像素值(Read into the image using matlab implementation, and display images, and access any pixel in the image)

这是matlab批量读入图片的程序，很好用，里面有详细的说明(This is read into the picture matlab batch process, useful, which is described in detail)

Matlab 6_5 Matlab7_0 完全正式版Matlab 6_5 Matlab7_0 完全正式版..Matlab 6_5 Matlab7_0 完全正式版.(Matlab 6_5 Matlab7_0 fully fledged version of Matlab 6_5 Matlab ab7_0 fully fledged version of Matlab .. 6_5 Matlab7_0 fully fledged version.)

说明：  简单的实现了weiner滤波的功能，可以用于信号处理，可以用(Simple implementation of the weiner filtering function can be used for signal processing)

Human Computer Interaction

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(Cochlear substantially equivalent to a filter set, cochlear filter is used on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )

Frame subtraction code written by me using matlab it takes a video s first frame and subtract each frame from it. it shows output video and input video side by side