ColorImageSegmentation

a simple bank application

本文说明了bezier曲线的渐进迭代性质，是对bezier曲线进行十次渐进逼近迭代，有图形效果来看一斤很接近所给的点(This article describes the iterative nature of the progressive bezier curve, is the bezier curve gradually approaching ten iterations, with graphics that look very close to a pound to the point)

研究表明，构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时，离散 余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵，所以离散余弦变换矩阵与自然图像的 K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角 阵，即除了对角线元素以外，其它很多元素都近似为0，并且在左上角集中了主要能量。这 反映了自然图像大部分区域变化不大，亮度突变只占少数，即图像能量以低频成分为主的特 性。通过变换后的量化，舍弃对视觉效果影响较小的次要信息，可达到进一步的压缩效果。 虽然从去相关性能的意义上讲，DCT是一种次于K一L变换的准最佳变换，但是从算法实现的角度来看，DCT则远远优于K一L变换。首先，当图像的分块大小确定后，DCT的变换矩阵也就随之确定了，不随输入信号的统计特性变化而变化 其次，二维DCT能够分解成两次一维DCT，有利于硬件实现。 (Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect. Although from related to the performance of the sense, DCT is a kind o)

说明：  matlab 对基于形状的图像检索的算法 其中以七个不变矩为主要方法！！！！！！(matlab shape-based image retrieval algorithm for which the seven invariant moments as the main method! ! ! ! ! !)

与已有的代码相比，本代码不仅包含调制解调、星座图、误码率等已有功能，更添加蒙特卡洛仿真，具有更好的性能，程序会产生一些图，能看清楚调制解调的过程中一步一步的编解码过程。(Compared with the existing code, the code contains not only the modulation and demodulation, constellation diagram, such as bit error rate for existing function, more add a Monte Carlo simulation, has better performance, the program will produce some map, can see the encoding and decoding process step by step in the process of modulation and demodulation..)

lz77编码，从文件读取，进行编码，最终以二进制的形式输出到文本。无延伸(lz77 encoding read from the file, encoded in binary form the final output to the text. No extension)

说明：  这是一个小波变换处理语音信号的matlab程序，用于语音去噪(This is a wavelet transform voice signals in the Matlab procedures used for voice denoising)

Channel model concepts, classifications, and channel simulation using MATLAB graphics

输入任何三尺度多小波的尺度函数的系数，可画出其图象(Enter any three-scale Multiwavelet coefficient scaling function can draw its image)

有关EMAIL的一些简单编程，大家可以参考下(about some simple email programming which can be refered.)