-
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
-
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
-
Canny
用Canny算子提取边缘 用Canny算子提取边缘(Using Canny edge extraction Using Canny edge extraction Using Canny edge extraction Using Canny edge extraction Using Canny edge extraction)
- 2013-07-12 18:17:10下载
- 积分:1
-
souhan_v32
esprit算法对有干扰的信号频率进行估计,一种基于多文档得图像合并技术,搭建OFDM通信系统的框架。( esprit algorithm signal frequency interference can be assessed Based on multi-document image obtained combining technique, Build a framework OFDM communication system.)
- 2017-04-28 19:14:03下载
- 积分:1
-
Chromosome_counter
数学形态学及相关算法的C语言实现实例
源代码调用OpenCV的cxcore和highgui两个库,应用C语言编写,实现对染色体图像中染色体数目的统计。代码中的核心算法为数学形态学的重要算法——开运算、闭运算(腐蚀和膨胀)。包含腐蚀处理、膨胀处理、自适应中值滤波、微分直方图法确定二值化阈值、种子填充算法等图像处理算法的C语言实现,值得参考。(Mathematical Morphology and related algorithms realize the C language source code examples of cxcore call OpenCV and highgui two libraries, the application of C language to realize pairs of chromosomes in the chromosome number of image statistics. The core algorithm code for an important mathematical morphology algorithms- open operation, closing operation (corrosion and expansion). Contains corrosion treatment, expansion of treatment, adaptive median filter, histogram method to determine differential binarization threshold, the seed fill algorithm, such as image processing algorithms realize the C language, it is also useful.)
- 2007-09-17 17:11:33下载
- 积分:1
-
yaxiangsu1
亚像素方面的相关源码!!!相信对你的学习会有帮助!(Related to source sub-pixel area!!! That would be helpful to your learning!)
- 2010-11-29 16:41:02下载
- 积分:1
-
afdpf
正反馈主动频率偏移法,是应用于孤岛检测的一种算法,可以减小检测盲区,加快孤岛检测速度(Positive feedback active frequency offset method is an algorithm used in islanding detection)
- 2017-01-11 18:19:42下载
- 积分:1
-
tezhengtiqu
c++特征提取,提取图像当中的红色灯笼。。。(c++ feature extraction, image extraction among red lanterns)
- 2015-04-03 11:25:51下载
- 积分:1
-
Tracking
使用VC++ 6.0 和 OpenCv实现粒子滤波目标跟踪算法,主要功能在MFC对话框内实现。(particle filter object tracking)
- 2011-08-21 22:30:52下载
- 积分:1
-
main
图像亮度和对比度调节,已验证,分别有亮度调节和对比度调节的调整框(Image brightness and contrast adjustment, has been verified, respectively, brightness adjustment and contrast ad)
- 2017-03-26 20:25:06下载
- 积分:1