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MeFrm
说明: 傅立叶变换在图像处理中的重要作用:
(A) 图像增强与图像去噪
绝大部分噪音都是图像的高频分量,通过低通滤波器来滤除高频噪声;边缘也是图像的高频分量,可以通过添加高频分量来增强原始图像的边缘;
(B) 图像分割与边缘检测
提取图像高频分量
(C) 图像特征提取
形状特征:傅里叶描述子
纹理特征:直接通过傅里叶系数来计算纹理特征
其他特征:将提取的特征值进行傅里叶变换来使特征具有平移、伸缩、旋转不变性
(D ) 图像压缩
可以直接通过傅里叶系数来压缩数据;常用的离散余弦变换是傅立叶变换的实变换;
(Fourier transform in the important role of image processing:
(A) image enhancement and image denoising
Most of all images of high frequency noise by low pass filter to filter out high frequency noise edge is the image of the high frequency components can be enhanced by adding high frequency components to the edge of the original image
(B) Image segmentation and edge detection
High frequency components extracted image
(C) image feature extraction
Shape features: Fourier descriptors
Texture: directly through the Fourier coefficients to calculate the texture features
Other features: The characteristic value extracted by Fourier transform to the characteristics of translation, scaling, rotation invariance
(D) image compression
Fourier coefficients can be directly compressed data commonly used discrete cosine transform is the Fourier transform of the real transformation
朗读显示对应的拉丁字符的拼音)
- 2011-03-28 19:06:27下载
- 积分:1
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水平集
水平集边缘检测代码,利用了变分法进行优化和处理,实现了图像的快速边缘检测(Level set edge detection code is optimized and processed by using variational method, and fast edge detection of image is realized.)
- 2020-12-17 21:09:11下载
- 积分:1
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MyPolyStock
实现凸多边形排样,使用临界多边形NFP判断两个凸多边形是否相交,使用启发式算法提高效率(It s a good implement of convex polygon stock.)
- 2021-04-19 23:08:50下载
- 积分:1
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演示
说明: 图像处理,图像分割,图像变换,图像特征提取,图像增强,图像编码压缩(Image processing, image segmentation, image transformation, feature extraction)
- 2020-06-25 01:20:02下载
- 积分:1
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regionbased_seg
说明: snake模型 简单 可以修改迭代次数跟初始mask 挺不错的,可以改参数(snake model Simple can modify iterations with initial mask quite good can change parameters)
- 2010-04-20 16:49:56下载
- 积分:1
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StereoRegion
利用matlabde实现双目立体视觉中,对应图像对的深度信息的获取 (区域匹配算法实现)。(Use of matlab binocular stereo vision, corresponding to the depth of the image information
)
- 2011-12-19 15:34:12下载
- 积分:1
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imgmosaic
Matlab 实现的图像拼接 LM算法校正
手动选取特征点(Matable)
- 2010-05-23 18:09:07下载
- 积分:1
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lanbaijunlv
胶囊缺陷检测,通过图像处理,排除缺陷,检验胶囊是否合格(Capsule defect detection by image processing, eliminate defects, inspection capsules are qualified)
- 2013-05-23 23:59:37下载
- 积分:1
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QRSdetection
心电信号QRS复波实时检测代码及界面,使用QRS复波检测算法检测QRS复波(Code and interface, real-time detection of ECG QRS complex wave QRS complex wave detection algorithm to detect QRS complex wave)
- 2020-07-01 07:20:01下载
- 积分:1
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NMF-of-beta-divergence
这是著名的“Algorithmes de factorisation en matrices non-négatives fondée sur la beta-divergence”这篇文章算法的matlab源代码(This is the famous article " Algorithmes de factorisation en matrices non-ngatives fonde sur la beta-divergence" algorithm matlab source code)
- 2013-04-08 15:33:20下载
- 积分:1