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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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otsu-canny
基于otsu的自适应阀值canny边缘检测(adaptive canny edge detection based on otsu)
- 2020-06-27 02:00:02下载
- 积分:1
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tuxiangcaiji
转辙机图像采集板区域参数设置上位机界面程序,转辙机通信协议,多项式拟合参数及阈值设置。(Switch machine image acquisition board area parameter set PC interface program, switch machine communication protocols, polynomial fitting parameters and the threshold value is set.)
- 2014-07-07 19:01:26下载
- 积分:1
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Image-translation-transformation
图像平移处理,可以图片进行平移变换处理,提供演示图片(Image translation process, it can image pan transformation process provides demonstration image)
- 2016-05-19 13:56:43下载
- 积分:1
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Triangle_Renderer_Project
老外写的程序,可对三角形进行渲染,有详细的算法介绍。非常棒(A good Triangle Renderer Project,with detailed introduction.)
- 2011-04-22 09:18:28下载
- 积分:1
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cut_video
把视频分割成一帧一帧并且保存为图像,实现视频录制(Put the video into a frame of a frame and saved as image segmentation)
- 2013-06-14 16:55:58下载
- 积分:1
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AD0125
研华PCI-1711数据采集卡 AD转换VC++例程(Advantech PCI-1711 data acquisition card AD conversion VC++ Routines)
- 2020-09-10 11:58:02下载
- 积分:1
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RanSacCode
该代码用于对错误匹配点进行过滤操作,即去除错误的匹配点(The code is used to remove the wrong match points,and make sure the right matching.)
- 2014-12-31 11:17:07下载
- 积分:1
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vc_captrue
VC摄像图捕捉程序,简单实用,对初学者有帮助(VC camera Figure capture, simple and practical for beginners)
- 2011-06-28 16:27:16下载
- 积分:1
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ImageTool
图像处理 二值化 旋转 90 180 等,支持多种 图片(图像处理 二值化 旋转)
- 2012-05-04 15:26:20下载
- 积分:1