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nirmaf
移动窗口算法平滑光谱矩阵,用于近红外等光谱数据的预处理(Moving window spectral matrix smoothing algorithm for near-infrared spectral data, such as the pretreatment)
- 2020-07-02 20:40:01下载
- 积分:1
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TurboPixels
一个非常有用的超像素算法,用于图像分割,文件夹包含文章,采用matlab和c混编(a very useful superpixels algorithm,can be used for image segmentation,the file contatins paper,the matlab and c are mixed for exeution)
- 2013-01-27 11:24:08下载
- 积分:1
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DoG-filters
matlab 的 Difference of Gaussian 算法实现,很常用的算法(matlab the Difference of Gaussian algorithm, it is commonly used algorithm)
- 2011-09-26 13:04:20下载
- 积分:1
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256togray
可以将256色度级的图像转化为灰度图象,挺值得新手学习一下的,希望大家能喜欢(256 chroma level images can be converted to grayscale images, very worth novice to learn about, and I hope you like)
- 2014-04-19 14:48:30下载
- 积分:1
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detection
随着生产和工艺的进步,人们对产品的质量要求越来越高,基于机器视觉的在线
检测系统成为一种重要的质量控制手段。本文对应用于宽幅面、高精度的基于分布式
机器视觉的产品表面缺陷在线检测理论与算法进行了研究,并在此基础上以印刷品和
浮法玻璃的缺陷检测为例,完成了模式产品和非模式产品的缺陷在线检测系统。(With the progress of production and technology, people are increasingly demanding high quality products, based on machine vision for online 检测 system into one kind of Zhong Yao quality Kongzhishouduan. This article applies to wide format, high-precision machine vision products based on distributed-line surface defect detection theory and algorithms are studied, and on this basis, and float glass in print defect detection, for example, completed a model of products and non-model product line defect detection system.)
- 2020-06-26 22:20:02下载
- 积分:1
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computer_vision-master
图像特征提取,有SIFT、BOW、VLAD、LBP、HOG、FishVector、gist、Metric、colorhist。(Image feature extraction, including SIFT, BOW, VLAD, LBP, HOG, FishVector, gist, Metric, colorhist.)
- 2019-07-20 20:53:34下载
- 积分:1
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wtmk
说明: 通过生成秘钥得到一串具有一定长度的扩频码,将原始消息序列以扩频码的长度过采样产生过采样消息序列,并将扩频码以原始消息序列的长度多次重复成伪随机序列,再令过采样消息序列与伪随机序列异或就可以生成扩频消息序列。在频率域下,将扩频消息序列以一定的嵌入强度自适应地嵌入原始图像,得到的图像具有较强的鲁棒性,比起直接嵌入,扩频水印在受到攻击后恢复出的水印信息误码率要低得多。并且扩频码长度越长,容错率就越高,鲁棒性就越好。(A sequence of spread spectrum codes with a certain length is obtained by generating a secret key. The oversampling message sequence is generated by oversampling the original message sequence with the length of the spread spectrum code, and the spread spectrum code is repeated into a pseudo-random sequence with the length of the original message sequence for many times, and then the spread spectrum message sequence can be generated by making the difference between the oversampling message sequence and the pseudo-random sequence. In the frequency domain, the spread spectrum message sequence is adaptively embedded into the original image with a certain embedding strength, and the resulting image has strong robustness. Compared with direct embedding, the error rate of the watermark information recovered from the attack of spread spectrum watermark is much lower. And the longer the spreading code length, the higher the fault tolerance rate and the better the robustness.)
- 2020-09-03 17:58:08下载
- 积分:1
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rpca
RobustPCA 是最近提出的一种非常新的图像矩阵分解算法,该算法具有对噪声不敏感、能处理高维图像数据的特点。这是论文作者提供的 MATLAB 实现代码。(Oct 2009
This matlab code implements the augmented Lagrange multiplier method for
Robust PCA.
)
- 2010-07-20 15:59:22下载
- 积分:1
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distortion
一种利用图像中直线特征的方法来标定摄像机畸变参数的方法。该方法提取图像中多组不同方向的平行直线,并对其利用非线性最小二乘方法进行优化以得到最优的畸变参数,在优化过程中,采用多步渐进的策略。该方法不需要已知三维世界坐标,易于实现。实验表明,该方法有较高的准确率。(A camera lens distortion method is proposed, which uses the straight line features. Many parallel lines of different direction were extracted, and then were used to optimize the distortion parameters by nonlinear least square. The thought of step by step was added when the optimization method working. 3D world coordination is not need to know, and the method is easy to implement. The experiment result shows its high accuracy.)
- 2021-03-01 20:09:34下载
- 积分:1
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exp1
计算一幅灰度图像的直方图;进行简单的线性变换,并与源图像的直方图做变换;利用直方图均衡化进行图像增强(Calculating a gray-scale image histogram simple linear transformation, and to do with the source image histogram transformation the use of histogram equalization for image enhancement)
- 2009-10-14 14:07:34下载
- 积分:1