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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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QR
说明： 对二维码识别进行预处理的二值化，平滑以及角度和畸变的校正等(qr code pre.)
- 2015-12-14 14:58:33下载
- 积分：1
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TV图像去噪模型
说明： 去噪模型TV,可用于图像去噪，效果良好，模型特别简单(The denoising model TV can be used for image denoising, the effect is good, and the model is particularly simple.)
- 2020-07-01 15:34:57下载
- 积分：1
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code
说明： 对24位的彩色图像用中位切分(中位区分）法将其转换成8位索引图像，并且生成对应的颜色查找表。(median-cut algorithm,8-bit index map, lookup table,256 colors,)
- 2010-04-29 00:50:25下载
- 积分：1
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Hmodel
CT的投影重建算法，图片用的MATLAB里面自带的投影算法图像，运行可显示重建结果=）(CT projection reconstruction algorithm, pictures of MATLAB inside built-in image projection algorithm, Operation results indicate reconstruction =))
- 2007-03-22 16:54:18下载
- 积分：1
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houghtuoyuan3
利用霍夫变换进行椭圆检测，无需模板，不同的图片只需要更改个别参数(Ellipse detection using Hough transform, without templates, a different picture only need to change individual parameters)
- 2013-08-26 09:34:49下载
- 积分：1
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图像配准C++版
图像配准C++版
- 2020-11-30下载
- 积分：1
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MATLAB_Program
将源图像做高斯卷积，以光滑化源图像，用于图像的预处理(source image makes convolution with gauss so as to smooth the image as a preprocess.)
- 2010-05-25 19:10:43下载
- 积分：1
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k-svd_second
通过稀疏重构一幅自然图像，使得该图像重新生成，同时找出稀疏系数。(One kind of denoising signal sparse representation)
- 2016-10-08 17:14:45下载
- 积分：1
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retinex
MSR图像增强算法，基于MATLAB7.6，处理后的图像效果不错。(The MSR image restoring algorithm, the result is good for people studying.)
- 2011-04-21 14:58:45下载
- 积分：1
