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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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DIC
通过数字图像相关的方法计算两幅图像之间的位移,计算时间较长,是最基础的DIC,没有优化。(Digital image correlation method to calculate the displacement between the two images, the time is longer, is the most basic DIC, no optimization.)
- 2021-03-31 10:59:09下载
- 积分:1
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IPLib2.0
一套基于VC++的遥感影象处理系统,可以实现空间域,频率域以及光谱的处理(yi tao ji yu VC++ de yaohan yingxiang chuli xitong)
- 2021-01-05 09:48:54下载
- 积分:1
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K-maens
K均值聚类算法对图像进行分割,实验用程序,亲测可用。(K-means clustering algorithm for image segmentation, experimental procedures, pro-test is available.)
- 2013-07-20 16:43:29下载
- 积分:1
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gray
读取图像,将RGB图像转化为灰度图像,显示并保存(The RGB image is transformed into gray image)
- 2017-07-12 14:53:14下载
- 积分:1
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cvpr01_zollei1109
医学图像配准,医学图像2D_3D配准,基于vc++开发。(The registration of pre-operative volumetric datasets to
intra-operative two-dimensional images provides an im-
provedway of verifying patient positionandmedical instru-
ment location. In applications from orthopedics to neuro-
surgery, it has a great value in maintaining up-to-date in-
formation about changes due to intervention. We propose a
mutual information-based registration algorithm which es-
tablishes the proper alignment via a stochastic gradient as-
centstrategy. Ourmaincontributionliesinestimatingprob-
ability density measures of image intensities with a sparse
histogrammingmethodwhichcouldlead to potentialspeed-
up over existing registration procedures and deriving the
gradient estimates required by the maximization procedure.
Experimental results are presented on fluoroscopy and CT
datasets of a real skull, and on a CT-derived dataset of a
real skull, a plastic skull and a plastic lumbar spine seg-
ment.)
- 2014-09-09 16:29:28下载
- 积分:1
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ws1
这是一个基于vc++语言下读取像素点灰度值(write highhui of a photo!)
- 2012-03-18 21:54:55下载
- 积分:1
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aam
用AAM算法进行人脸特征点的标定,即对人脸的眼睛,眉毛,嘴巴,鼻子及脸的轮廓进行标记,此代码标记了68个特征点。(AAM algorithm for facial feature points calibration, calibration of this code is the 68 feature points, see the instance document.)
- 2012-10-16 16:12:43下载
- 积分:1
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fdeconv
图像的反卷积 去卷积复原
效果还不错,欢迎下载(image deconvolution image restoration)
- 2010-12-24 14:11:25下载
- 积分:1
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HOG+SVM进行图片中行人检测
说明: 行人检测HOG+SVM进行图片中行人检测,提供训练用的pos和neg样本,效果还可以;没有SVM工具箱的,压缩包里已经提供了,安装一下即可(Pedestrian detection HOG + SVM for pedestrian detection in pictures, providing POS and neg samples for training, the effect is good; without SVM toolbox, the compression package has been provided, just install it.)
- 2020-10-30 16:09:56下载
- 积分:1