poiuytf

lsb embedding for invisible image watermarking

this code helps us to compress a text using huffman algorithm

基于二叉树定价原理的对于美式看涨期权和欧式看涨与看跌期权的模拟(Analog for the American call option and the European call and put options based on binary tree pricing)

摘　要:针对茄子图像的灰度和颜色特点,利用MATLAB中丰富的图像处理函数,分别进行了色差分割和色调分割。在 色调分割中,采用了自动选取阈值的Otsu法。在去除残留噪音的处理中,采用标注的方法对二值图像的各连通区域进行面积 统计。保留最大面积的区域,从而使分割效果大大改善。利用多参数来衡量分割效果,使评价做到最大程度的客观、合理。(Based on the gray- level and color characteristics of eggp lant image, hue and color- difference segmentation were conducted by using the rich image p rocessing functions embedded inMATLAB. The auto threshold- adap tivemethod ofOtsu operation was specially used for hue segmentation. And upon the elimination of the residue noise, labelingmethod for statistical calculation was introduced for the connected regions of the binary image. Themaximum areaswere p reserved to imp rove segmentation effects. In addi2 tion, multi- indiceswere app lied to assess the effect of segmentation, in order to get impersonal and reasonable assessment)

here is program is related to optimization method, gui, regression, graph.

说明：  卷积码编码译码Decoding convolutional coding(Decoding convolutional coding)

说明：  基于小波变换自适应水印图像的（提取） matlab编程实现(Adaptive watermarking based on wavelet transform image (extract) matlab programming)

信息论中计算信道容量的matlab编程代码，经测试可用。(Information theory to calculate the channel capacity matlab programming code, have been tested.)

probability principle component analysis, using matlab to reduce the dimenission of data.

this is a homw work for students to get concept