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灰度图像边缘检测
说明： 灰度图像的边缘检测，包含多种算子：sobel,prewitt,gaosi算子等，包括原理和各算子的区别(Edge detection of gray image includes many operators: Sobel, Prewitt, Gaosi, etc)
- 2020-04-19 17:08:44下载
- 积分：1
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PG_BOW_DEMO
图像的特征用到了Dense Sift，通过Bag of Words词袋模型进行描述，当然一般来说是用训练集的来构建词典，因为我们还没有测试集呢。虽然测试集是你拿来测试的，但是实际应用中谁知道测试的图片是啥，所以构建BoW词典我这里也只用训练集。
其实BoW的思想很简单，虽然很多人也问过我，但是只要理解了如何构建词典以及如何将图像映射到词典维上去就行了，面试中也经常问到我这个问题，不知道你们都怎么用生动形象的语言来描述这个问题？
用BoW描述完图像之后，指的是将训练集以及测试集的图像都用BoW模型描述了，就可以用SVM训练分类模型进行分类了。
在这里除了用SVM的RBF核，还自己定义了一种核： histogram intersection kernel，直方图正交核。因为很多论文说这个核好，并且实验结果很显然。能从理论上证明一下么？通过自定义核也可以了解怎么使用自定义核来用SVM进行分类。(Image features used in a Dense Sift, by the Bag of Words bag model to describe the word, of course, the training set is generally used to build the dictionary, because we do not test set. Although the test set is used as the test you, but who knows the practical application of the test image is valid, so I am here to build BoW dictionary only the training set.
In fact, BoW idea is very simple, although many people have asked me, but as long as you understand how to build a dictionary and how to image map to the dictionary D up on the line, and interviews are often asked me this question, do not know you all how to use vivid language to describe this problem?
After complete description of the image with BoW, refers to the training set and test set of images are described with the BoW model, the training of SVM classification model can be classified.
Apart from having to use the RBF kernel SVM, but also their own definition of a nuclear: histogram intersection kernel, histogram )
- 2011-11-01 17:01:09下载
- 积分：1
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signalprocessing
文章讲诉的是小波在信号处理方面的应用，包括奇异点的检测，信号降噪等，有很全的原理介绍，有仿真程序和结论分析，具有一定的学习价值(V. article stresses that the wavelets in signal processing applications, including the singular point detection, signal noise, etc., have very wide introduction of the principle, procedure and conclusions have simulation analysis, has some learning value)
- 2007-10-22 09:10:01下载
- 积分：1
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JPEG
说明： 基于JPEG的图像压缩，觉得可用，同学的毕业设计作品(Based on the JPEG image compression that can be used, students design the graduation)
- 2009-08-17 11:39:45下载
- 积分：1
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head-3d-restruction
利用matlab对头颅图像进行三维重建的实用算法(Practical three-dimensional image reconstruction algorithm using matlab)
- 2013-05-21 10:38:27下载
- 积分：1
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L0330
小波去噪算法，包含多种小波去噪去噪，强制去噪、软阈值去噪、硬阈值去噪(Wavelet denoising algorithm that contains a variety of wavelet denoising denoising forced denoising, soft thresholding and hard threshold denoising
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- 2021-02-15 11:39:48下载
- 积分：1
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BRISQUE_release
若干经典的无参考图像质量评价算法matlab版本，附带详细的注释。(Several classic non reference image quality evaluation algorithms matlab version, with detailed notes.)
- 2017-10-13 17:20:13下载
- 积分：1
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peizhun
An image registration matlab code
- 2019-04-08 08:54:48下载
- 积分：1
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wavelettrans
文件包提供小波变换的vc实现，包含基于小波变换的图像小波域分析，为后续处理提供参考(Package provided by wavelet transform vc realize that contains the image based on wavelet transform wavelet-domain analysis, provide a reference for follow-up treatment)
- 2008-05-06 17:00:40下载
- 积分：1
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opencv-sift
图像匹配，可以实现目标图像的匹配，匹配出最相似的训练图片。(Image matching, the matching can achieve the target image, matching the most similar training images.)
- 2013-06-08 16:46:48下载
- 积分：1
