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Description: applies soft-threshold t to all elements of x and computes SURE
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Size: 871 |
Author: 陈大可 |
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Description: applies soft-threshold t to all elements of x and computes SURE
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Size: 1024 |
Author: 陈大可 |
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Description: Code for denoising images. This code differs from standard wavelet denoising techniques in that it uses non-orthogonal wavelets, and unlike existing techniques, ensures that phase information is preserved in the image. Phase information is of crucial importance to human visual perception. Also, this code does have an effective way of determining threshold levels automatically. -Code for denoising images. This code differs from standard wavelet denoising techniques in that it uses non-orthogonal wavelets, and unlike existing techniques, ensures that phase information is preserved in the image. Phase information is of crucial importance to human visual perception. Also, this code does have an effective way of determining threshold levels automatically.
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Size: 4096 |
Author: wang gang |
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Description: 本程序采用SURE域值选择算法对信号去噪-This procedure using SURE threshold selection algorithm of signal de-noising
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Size: 1024 |
Author: jiali |
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Description: 这是本人的图像处理作业 包括利用各种基于小波的去噪过程，如硬阈值 软阈值等。。内容很丰富哦！相信一定对你有帮助的！-This is my image processing operations including the use of wavelet-based de-noising process, such as a hard threshold, such as soft-thresholding. . Oh, the content is very rich! I am sure will help you!
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Size: 481280 |
Author: 大禹 |
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Description: SURE阈值滤波噪，具有很好的去噪效果，能消除对中统一门限的“过扼杀”现象。-SURE threshold filtering noise, has a good de-noising effect, can eliminate the right of a unified threshold " over kill" phenomenon.
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Size: 1024 |
Author: Jason |
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Description: opencv例子里没有提供cvsnakeimage的使用方法，在此整理一个例子，可以形象的看看snake算法的结果，大致做法是：
首先设定域值分割，把基本的轮廓找出来，见图中蓝色轮廓线，再将轮廓点传入cvSnakeImage函数，计算出绿色的snake轮廓线。
其中参数alpha代表点相互靠拢的权值(0-1.0)，beta表示弯曲能量（越小越容易弯曲）(0-1.0)，gamma表示整体能量(0-1.0)。其中参数我自己也不确定具体的范围，最好自己更改不同的范围试试. -opencv example does not provide cvsnakeimage way to use an example in this order, you can see the image of the results of snake algorithm, roughly approach is: first to set the threshold segmentation, the basic outline to find out, the blue outline of Figure line, then passed cvSnakeImage function of contour points to calculate the green snake contour. Parameter alpha which each representative point to move closer to the weight (0-1.0), beta that bending energy (the smaller the easier bending) (0-1.0), gamma that the overall energy (0-1.0). I am not sure which specific parameters of the scope, it is best to try different areas to change their own.
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Size: 1024 |
Author: |
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Description: 小波变换，采用NeighShrink SURE阈值，去噪效果十分理想，速度一般。-Wavelet transform, the NeighShrink SURE threshold de-noising result very ideal, speed, general.
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Size: 1233920 |
Author: 熊浩 |
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Description: 本文介绍了两种图像区域分割方法，讨论了关于分割时最佳闽值选择的问题，除利用直方图确定阈值外，还介绍了利用方差确定阈值的途径。
关键词：图-This paper introduces two kind of image area segmentation method, talked about the best value selection fujian segmentation, besides the histogram threshold value determined outside, but also introduced the use of variance sure threshold way.
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Size: 222208 |
Author: lvxin |
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Description: 开集测试。用前20个人的前5张图像作为训练，剩下的图像作为测试。也就是说总共有100张图片和300张测试图像。注意，这时候，后20个人并没有出现在训练集中，需要给出一个合理的拒识方式来判断某张图像是否在训练的20个人中。请设计一个合理的拒识方式（最简单的方式是对测试图像到训练图像的最近距离设定一个阈值），并给出ROC曲线（在a问的前提下选择一个合理的K来做，不一定要考察K的影响）。-Open set tests. 20 individuals with the former image as the first five training image as the rest of the test. That is a total of 100 images and 300 test images. Note that this time, after 20 people did not appear in the training set, you need to give a reasonable way to determine whether a rejection images are in training for 20 individuals. Please design a rational rejection mode (the easiest way to test image is the closest distance to the training image set a threshold), and gives the ROC curve (on the premise of a question choose a reasonable K do not Be sure to examine the impact of K).
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Size: 1024 |
Author: houlun |
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Description: 首先设定域值分割，把基本的轮廓找出来，见图中蓝色轮廓线，再将轮廓点传入cvSnakeImage函数，计算出绿色的snake轮廓线。
其中参数alpha代表点相互靠拢的权值(0-1.0)，beta表示弯曲能量（越小越容易弯曲）(0-1.0)，gamma表示整体能量(0-1.0)。其中参数我自己也不确定具体的范围，最好自己更改不同的范围试试.-First set the threshold segmentation, find out the basic outline, blue contour lines in Figure, and then contour points incoming cvSnakeImage function to calculate the green snake contour.
Where the parameter alpha representative points closer to each other weights (0-1.0), beta represents the bending energy (smaller and more easily bent) (0-1.0), gamma represents the total energy (0-1.0). I am not sure where the parameters specific range, best to try to change their different ranges.
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Size: 2048 |
Author: 王越 |
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