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TTT_ista_lasso-master

于 2020-10-25 发布文件大小:33KB

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下载积分: 1 下载次数: 13

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代码说明：

迭代收缩阈值算法和快速收缩阈值迭代算法求解Lasso问题(Iterative Shrinkage Thresholding Algorithm (ISTA) for LASSO problem)

文件列表：

ista_lasso-master, 0 , 2016-10-06
ista_lasso-master\README.md, 2384 , 2016-10-06
ista_lasso-master\create_h2d.m, 390 , 2016-10-06
ista_lasso-master\create_lexicoH.m, 584 , 2016-10-06
ista_lasso-master\demo_ista.m, 4046 , 2016-10-06
ista_lasso-master\funcs, 0 , 2016-10-06
ista_lasso-master\funcs\func3.m, 405 , 2016-10-06
ista_lasso-master\funcs\func3_grad.m, 347 , 2016-10-06
ista_lasso-master\funcs\func3_hess.m, 336 , 2016-10-06
ista_lasso-master\obj_sparse.m, 152 , 2016-10-06
ista_lasso-master\opt, 0 , 2016-10-06
ista_lasso-master\opt\opt_cg.m, 963 , 2016-10-06
ista_lasso-master\opt\opt_fista_lasso.m, 1650 , 2016-10-06
ista_lasso-master\opt\opt_ista_lasso.m, 1344 , 2016-10-06
ista_lasso-master\psnr.m, 218 , 2016-10-06
ista_lasso-master\results, 0 , 2016-10-06
ista_lasso-master\results\cls-cg.jpg, 7011 , 2016-10-06
ista_lasso-master\results\degraded.jpg, 6877 , 2016-10-06
ista_lasso-master\results\lasso-fista.jpg, 7323 , 2016-10-06
ista_lasso-master\results\lasso-ista.jpg, 7190 , 2016-10-06
ista_lasso-master\results\original.jpg, 6841 , 2016-10-06
ista_lasso-master\x_2d.mat, 240 , 2016-10-06

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opencv4.3
自主选择性的查看一幅图像中的部分区域的颜色直方图：允许用户在一幅图像中选择一个矩形区域，通过按住鼠标键画一个矩形，当鼠标放开是，高亮显示矩形框，同时在另一个独立的窗口中，使用画图函数画一个图表（选定区域的颜色直方图），分别用蓝，绿，红表示选中区域中每种颜色的像素数量。(Self-selective color in an image to view a partial area of the histogram: Allows the user to select a rectangular area in an image by holding down the mouse button to draw a rectangle when the mouse is released, the highlighted rectangle, Meanwhile in a separate window, using the drawing functions to draw a chart (selected color histogram region), respectively, with blue, green, red indicates the number of pixels in the selected area of each color.)

2014-02-13 16:18:41下载

积分：1
Wave-equation-forward-modeling
1、参数初始化； 2、形成边界削波数据； 3、波场初始化； 4、Zmax层波场延拓到深度Zmax-1； 5、Zi+1层波场延拓到深度Zi； 6、重复5，从Iz Nz-1开始，直到Iz 1，得测线上的频率—空间域波场； 7、频率-空间域波场对频率做反傅里叶变换，得时间-空间波场； (1, parameter initialization 2, the formation of boundary clipping data 3, wave field initialization 4, Zmax layer wave field extended to the depth of Zmax-1 5, Zi+1 layer wave field extended to the depth of Zi 6, repeat 5, starting Iz Nz-1 until Iz 1, the frequency of the test line- spatial domain wave field 7, frequency space domain wave field to frequency inverse Fourier transform, time- space field )

2021-03-07 16:59:29下载

积分：1
SPIHT_bandelet
我写的基于bandelet域的spiht图像压缩算法。效果比经典的SPIHT好。文章已发，希望代码对大家有用。(I wrote bandelet domain-based SPIHT image compression algorithm. SPIHT is better than a good classic. Article has been distributed, I hope the code useful for everyone.)

2007-07-26 15:37:24下载

积分：1
bss.doc
盲信号分离应用的图像盲分离的资料，给出了事例以及部分源码(Blind Signal Separation Application Blind Image Separation of information, and gives examples of some of the FOSS)

2007-03-26 17:15:48下载

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利用改进的Sobel算子检测图像边缘,从水平、垂直、左右对角线的方向计算Sobel梯度，并且加入拐角的梯度值。(The improved Sobel edge detection operator, horizontal, vertical, left and right diagonal direction Sobel gradient calculation, and adding the value of the gradient of the corner.)

2013-12-20 20:13:43下载

积分：1
fina_deconvolution_code
在计算机视觉领域一种非盲去模糊的方法代码(A non-blind deblurring method code in the field of computer vision)

2020-06-23 22:40:01下载

积分：1
OpenTiff
实现了20000*20000以上的大tiff格式遥感图像的读写和显示，用于遥感图像处理(Achieve a 20,000* 20,000 or more large remote sensing image tiff format to read and write and display for remote sensing image processing)

2013-08-20 13:35:27下载

积分：1
PCAKmeans
用主成分分析来降维，用Kmeans方法聚类；应用于变化检测中(Principal component analysis is used to reduce dimension with k-means algorithm is used to cluster; change detection)

2021-03-29 18:09:10下载

积分：1
JAFFE
数据库是由10个人的7种正面表情组成的213幅灰度图像，图像是以大小为256256的8位灰度级存储的，格式为.tiff型，平均每个人每种表情有2到4张。( the JAFFE database[11] which is composed of 213 images of female facial expression corresponding to 10 distinct subjects. Each image is stored at a resolution of 256×256 pixels and 8-bit gray level. Each subject in the database is represented with 7 categories of expression (angry, disgust, fear, neutral, sadness, happiness and surprise). )

2012-12-20 10:31:00下载

积分：1
tuxiangpingjie
图像拼接及柱面全景图生成算法研究图像拼接及柱面全景图生成算法研究(Image mosaicing and cylinder panorama generation algorithm is studied)

2012-01-14 19:37:10下载

积分：1

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