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Description: 对由光源颜色变化引起的图像色彩偏差,进行了校正,并在YCbCr颜色空间建立了Cb-Cr色度查找表和亮度信息联合的肤色模型,应用预处理技术,去除部分非人脸区域,减少人脸检测的搜索空间,并采用模板匹配方法在人脸候选区域检测人脸.实验表明,该方法能够有效的从复杂环境的彩色图像中检测出左右旋转不超过45°的人脸,且不受人脸表情、尺度和数目的影响,且错误率较低.-Color by the light source caused by the change of image color deviation, a correction, and YCbCr color space established a Cb-Cr chrominance and luminance information look-up table of the color model of the joint application of pre-treatment technology, to remove some non-human face region, Face detection to reduce the search space, using a template matching method in the face candidate region detection of human faces. experiments show that the method can be effective in complex environments from color images detected no more than about 45 ° rotation of the human face, and from Facial Expression, scale and number of impact, and lower error rate.
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Size: 191488 |
Author: lll |
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Description: 一个matlab编的图像检索代码,贡献给大家-cbir bnvbmnb,m
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Size: 661504 |
Author: 阿刚 |
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Description: Matlab程序，实现了一种新的色彩白平衡算法。 针对物体在有色光源照射下呈现偏色的现象,提出一种改进的LoG边缘自动白平衡算法。该算法在YCbCr空间的Cb和Cr分量上同时利用LoG算子提取边缘,利用LoG边缘具有零交叉特性直接得到边缘两侧的像素。为了避免占主导的彩色纹理造成干扰,利用白色区域的偏色信息进行边缘抑制。利用得到彩色边缘对原图的偏色进行有效的估计,最后计算三颜色通道的增益并进行白平衡。对大量图片进行了实验,结果表明该算法对不同色光照射下的图像均能很好地进行白平衡,同时与多种白平衡算法的对比实验表明该算法适应面广,性能良好。-Matlab program implements a new color white balance algorithms.
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Size: 1024 |
Author: pika |
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Description: 先讀入膚色，非膚色的圖片，在將各張圖片由RGB轉成YCbCr。讀進來的時候，我是用四維的陣列去存膚色的圖片以及非膚色的圖片。第一個維度是用來存放有幾張圖片，接下來是解析度，還有幾個channel。讀進來之後再分別對膚色，非膚色的Cb，Cr來作統計。分別會得到Cb，Cr的mean和variance。再依次分別帶入Multivariate Normal Density的公式去求得膚色，非膚色出現的機率。最後再將得到的兩個機率值相除，得到的值，拿來和threshold值相比，藉此來判斷Input的圖的pixel是否為膚色。-To read into the color, non-color pictures, all pictures in the RGB conversion from YCbCr. Reading came when I was using four-dimensional array to save color images and non-color pictures. The first dimension is used to store a few pictures, followed by the resolution, there are several channel. Respectively after reading came in color, non-color of the Cb, Cr to make the statistical. Respectively, will be Cb, Cr of the mean and variance. Then in turn were brought into the Multivariate Normal Density formula to obtain color, the probability of non-skin color appears. Finally got two chances and then divided the value obtained values, brought, and compared with threshold values, thereby to determine the Input of the map whether the color pixel.
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Author: Howard |
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Description: 这个程序用来统计被训练的肤色在YCbCr空间的聚类情况，从而建立一维高斯模型，进行肤色分割。-Statistics and observe various color space of 1-d gaussian clustering including Y Cb Cr。
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Size: 1447936 |
Author: sun |
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Description: 是一种纹理描述算子用于快速提取图像的纹理特征,应用于医学图像检索,场景分类等.-Is a texture description operator for rapid extraction of texture features, used in medical image retrieval, scene classification.
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Size: 3072 |
Author: zhangliyan |
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Description: 给予matlab的JPEG压缩程序，包含原始压缩图片，程序对灰度bmp图片进行JEPG编码，压缩成以0101形式的编码。JPEG编码先把图象色彩RBG变成亮度Y和色度Cr、Cb，它利用人的视觉对色度不敏感的特点，减少一部分色度数据，以达到压缩。 JPEG采取多种编码方式，包含有行程编码(Run Length Coding)和哈夫曼(Huffman)编码，有很高的压缩比。在编码前，先对数据进行分块，离散余弦变换（DCT）及量化，保留能量大的低频信号，丢弃高频信号以达到压缩。-Given to the JPEG compression matlab program, contains the original compressed image, the program of the grayscale bmp picture JEPG encoded, compressed into a 0101 form of encoding. RBG color coded JPEG image into a first luminance Y and chrominance Cr, Cb, which uses the human visual characteristics is not sensitive to the color, reduce the number of color data to achieve compression. Take a variety of JPEG encoding, includes length coding (Run Length Coding) and Huffman (Huffman) coding, a high compression ratio. In the code before the data block, discrete cosine transform (DCT) and quantization, to retain a large low-frequency signal energy, discarding high-frequency signals in order to achieve compression.
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Description: 图像去噪CB模型的MATlab程序应用 彩色图像去噪-CB model MATlab image denoising procedures using color image denoising
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Size: 33792 |
Author: WaveKing |
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Description: it is the matlab model for simulation of the class bchopper with full details of parametrs
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Size: 6144 |
Author: vinod |
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Description: 可转债定价模型，matlab编写，根据中国国情，考虑到修正条款-convertable bond
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Size: 1024 |
Author: 李 |
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Description: 为可转换公司债券定价的必备程序,在matlab环境中实现。-This is matlab code for Convertible Bond pricing.
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Size: 9216 |
Author: 天睿 |
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Description: "lvrt of doubly fed induction matchine by using crowbar" simulation in simulink of matlab that initialization condutions will be uploaded in another file
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Size: 44032 |
Author: behnaz |
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Description: matlab补偿模糊神经网络源代码
本文中有两个函数m文件：model126.m是一个用于预测的完全没有用工具箱函数的补偿模糊神经网络主程序，用于仿真、对比训练数据和网络输出的差异；cb.m是一个非线性系统的数学模型，在model126.m中用“ode45”函数求解这个数学模型后，可以得到105个x1(t)、x2(t)和y(t)，从而建立起一个两输入一输出的补偿模糊神经网络。(There are two function m file in this paper: model126.m is a completely useless for predicting the compensation fuzzy neural network toolbox function for the main program, the difference between the simulation and contrast the training data and the output of the network; cb.m is a mathematical model of a nonlinear system, using the "ode45" function to solve the mathematical model in the model126.m after that can be 105 X1 (T), X2 (T) and Y (T), which established a two input and one output fuzzy neural network.)
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Author: Zenia |
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Description: MATLAB实现系统级仿真
useroutput4是富士通的曲线
main0725主函数
powercontrol_fujistu_200910_multiTTI
因为目标ＳＮＲ随ＰＬ的增大而减小，第一次按PL去作为标准取分配ＲＢ，CoMP用户优先
以此cell为主小区的用户ID
76to68dBm_3dB.mat 是500个子帧跑了5次，CoMP门限3dB
找不到的概率0.1659 0.5069
还是方案二好哦 是在IoT类似的情况下去找，而且不考虑IoT>10的情况
这个是证明了方案二找到好的概率比较大，那么大能大多少呢，可以画一个好的概率的CDF曲线，好就取证，差就取负，这个应该比较好
temp1028三个合一个
test1027算找到的概率
t2画图
比特合并时
方案二找不到比方案一好的概率:0.3158
方案1找不到比方案2好的概率:
0.3158 0.9735差距很明显(matlab systemLevelSimulation)
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Size: 580608 |
Author: 莹莹9001 |
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