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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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49762
手机壁纸截图小工具源码程序,结合易语言扩展界面支持库,应用易语言图像格式转换支持库,可以截取指定格式的图片,用于手机壁纸。(Phone wallpaper theme gadget source program, combined with easy language support library expansion interface , the application image format conversion easy language support library , can intercept a specified format pictures, wallpaper for mobile phones .)
- 2017-01-17 16:27:47下载
- 积分:1
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Digital Image Processing
1.RAW格式转换为BMP格式
2.灰度线性拉伸
3.局部处理
4.几何处理
5.二值化
6.模板匹配
7.影像融合(1.RAW format converted to BMP format
2. grayscale linear stretch
3. local processing
4. geometric processing
5. binaryzation
6. template matching
7. image fusion)
- 2018-01-17 18:55:16下载
- 积分:1
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ROAPROEWA-algorithm
最为经典的ROA和ROEWA算子,用于SAR图像边缘检测,并附有一定的实例图像,以说明实验结果。(ROA and ROEWA algorithms are given in order to detect the edge of images, and some images are attached illustrating the experimental results.)
- 2021-03-21 20:39:17下载
- 积分:1
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wenlituxiangjiansuo
基于纹理的图像检索源码,用matlab实现的,用于学习研究(Texture-based image retrieval source code, using matlab to achieve, for study and research)
- 2008-03-01 16:55:13下载
- 积分:1
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try
Source code to segment skin colour.
- 2012-09-11 18:19:13下载
- 积分:1
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upf_demos
里面包含kalman,扩展kalman,无迹kalman,粒子滤波,无迹粒子滤波等源码的实现。(upf--The Unscented Particle Filter )
- 2009-03-31 13:31:51下载
- 积分:1
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example
使用C++和CUDA编写的双边滤波器。在平滑图像的同时可以保持边界(Using bilateral filter the C++ and CUDA written. Boundary can be kept in the smooth image while)
- 2013-01-09 19:06:43下载
- 积分:1
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useful
很有用的彩色图像分割方法,经本人实验,绝对可靠(Very useful for color image segmentation method, by my experiment, absolutely reliable)
- 2010-10-10 22:02:54下载
- 积分:1
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naiman_v21
实现了图像的加水印,去噪,加噪声等功能,小波包分析提取振动信号中的特征频率,是机器学习的例程。( Realize image watermarking, de-noising, plus noise and other functions, Wavelet packet analysis to extract vibration signal characteristic frequency, Machine learning routines.)
- 2017-01-16 13:13:33下载
- 积分:1