image-processing-program

Mex库，支持Matlab中调用C++代码，实现综合运用(Matlab and Mex)

标准AM振幅调制方式，ma=1时的标准AM振幅调制(Standard AM amplitude modulation, ma = 1 the standard AM amplitude modulation)

说明：  利用matlab和ceemd进行编程求解简单的信息熵((Using MATLAB and ceemd programming to solve simple information entropy, according to the IMF component to determine the situation of the signal))

FFT的实现的Matlab代码，利用Matlab来实现FFT，从而计算DFT(The Matlab code for FFT)

QPSK BER SER AWGN 正交相移键控的基带数字通信系统(QPSK BER SER AWGN )

说明：  QR二维码精定位，通过探测三个位置探测图形获得三个坐标，定位准确率90%左右。(QR code precise positioning, through the detection of 3 position detection patterns and then get 3 points, the recognition accuracy is about 90%.)

《射频电路设计——理论与应用》一书课后习题第七章Matlab程序代码("RF circuit design-- Theory and Application," a book OSCAR Exercises Chapter VII Matlab code)

describe estimate geomatric transfare

Add Salt pepper noise and gaussian noise

DCT and Image Compression In the JPEG image compression algorithm, the input image is divided into 8-by-8 or 16-by-16 blocks, and the two-dimensional DCT is computed for each block. The DCT coefficients are then quantized, coded, and transmitted. The JPEG receiver (or JPEG file reader) decodes the quantized DCT coefficients, computes the inverse two-dimensional DCT of each block, and then puts the blocks back together into a single image. For typical images, many of the DCT coefficients have values close to zero these coefficients can be discarded without seriously affecting the quality of the reconstructed image. The example code below computes the two-dimensional DCT of 8-by-8 blocks in the input image, discards (sets to zero) all but 10 of the 64 DCT coefficients in each block, and then reconstructs the image using the two-dimensional inverse DCT of each block. The transform matrix computation method is used.