Quanta-AK1

二维图像处理，高光谱图像插补 Matlab 程序(hyper-spectral image processing )

feature selection demo

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.

BP 网络具有以任意精度逼近定义在紧致子集上的任意非线性函数的能力, 因而被广泛应用于识别、预测、拟合。(BP network has to approach any degree of accuracy defined in the compact subset of the capacity of any nonlinear function, which is widely used in identification, prediction, fit.)

绘制人脸，通过几个圆组合出人脸、人眼等部位，然后构造动画(Draw a face to face, the human eye and other parts by several round combination, and then construct the animation)

matlab的数学手册，很实用的一本书，pdf文件(matlab math manual,good book)

matlab编写的经典pso算法，简单易懂，功能强大(matlab prepared classical PSO algorithm is simple and powerful)

说明：  本程序能够实现对数字分向码产生的功能，使用方法请参照程序注释。(procedures to achieve the right digital code points to the functions, please refer to the use of procedural methods Notes.)

霍夫变换的源程序，专门用于复杂背景下圆孔的中心定位(Hough transform of the source, specifically for the complex context of the central positioning hole)

方波图形，简单的图形，仅供参考，主要是对于初学者(square graphics, simple graphics, for reference purposes only, primarily for beginners)