Description: 平滑滤波 一般来说，图像的能量主要集中在其低频部分，噪声所在的频段主要在高频段，同时系统中所要提取的汽车边缘信息也主要集中在其高频部分，因此，如何去掉高频干扰又同时保持边缘信息，是我们研究的内容。为了去除噪声，有必要对图像进行平滑，可以采用低通滤波的方法去除高频干扰。图像平滑包括空域法和频域法两大类，在空域法中，图像平滑的常用方法是采用均值滤波或中值滤波，对于均值滤波，它是用一个有奇数点的滑动窗口在图像上滑动，将窗口中心点对应的图像像素点的灰度值用窗口内的各个点的灰度值的平均值代替，如果滑动窗口规定了在取均值过程中窗口各个像素点所占的权重，也就是各个像素点的系数，这时候就称为加权均值滤波；对于中值滤波，对应的像素点的灰度值用窗口内的中间值代替。实现均值或中值滤波时，为了简便编程工作，可以定义一个n*n的模板数组。另外，读者需要注意一点，在用窗口扫描图像过程中，对于图像的四个边缘的像素点，可以不处理；也可以用灰度值为\"0\"的像素点扩展图像的边缘。下面给出了采用加权均值滤波的图像平滑函数代码和效果图：-smoothing filter general, the image of energy is mainly focused on the low-frequency part of the noise lies mainly in the high-frequency band, which system to extract the vehicle Edge Information has been concentrated in some of its high frequency, therefore, how to remove high-frequency interference at the same time, maintain the edge information, we Institute enforcement of the content. In order to remove noise, it is necessary for smooth images can be used to the low-pass filter to remove high-frequency interference. Image Smoothing including airspace and frequency domain method two categories, in the airspace law, the common image smoothing method is used Mean Median filter or filter for filtering mean, it is an odd point in the sliding window on the sliding images of the corresponding Platform: |
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Description: 平滑滤波 一般来说，图像的能量主要集中在其低频部分，噪声所在的频段主要在高频段，同时系统中所要提取的汽车边缘信息也主要集中在其高频部分，因此，如何去掉高频干扰又同时保持边缘信息，是我们研究的内容。为了去除噪声，有必要对图像进行平滑，可以采用低通滤波的方法去除高频干扰。图像平滑包括空域法和频域法两大类，在空域法中，图像平滑的常用方法是采用均值滤波或中值滤波，对于均值滤波，它是用一个有奇数点的滑动窗口在图像上滑动，将窗口中心点对应的图像像素点的灰度值用窗口内的各个点的灰度值的平均值代替，如果滑动窗口规定了在取均值过程中窗口各个像素点所占的权重，也就是各个像素点的系数，这时候就称为加权均值滤波；对于中值滤波，对应的像素点的灰度值用窗口内的中间值代替。实现均值或中值滤波时，为了简便编程工作，可以定义一个n*n的模板数组。另外，读者需要注意一点，在用窗口扫描图像过程中，对于图像的四个边缘的像素点，可以不处理；也可以用灰度值为"0"的像素点扩展图像的边缘。下面给出了采用加权均值滤波的图像平滑函数代码和效果图：-smoothing filter general, the image of energy is mainly focused on the low-frequency part of the noise lies mainly in the high-frequency band, which system to extract the vehicle Edge Information has been concentrated in some of its high frequency, therefore, how to remove high-frequency interference at the same time, maintain the edge information, we Institute enforcement of the content. In order to remove noise, it is necessary for smooth images can be used to the low-pass filter to remove high-frequency interference. Image Smoothing including airspace and frequency domain method two categories, in the airspace law, the common image smoothing method is used Mean Median filter or filter for filtering mean, it is an odd point in the sliding window on the sliding images of the corresponding Platform: |
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Description: 图像平滑程序,使用3*3的矩阵窗口,多种选择的平滑方式.-Image smoothing procedures, the use of 3* 3 matrix window, smoothing the way a variety of choices. Platform: |
Size: 4096 |
Author:刘飞 |
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Description: 指定方差和窗口的大小, 产生2维高斯平滑窗的源码.-Specified variance and the size of the window, resulting in 2-D Gaussian smoothing window of the source. Platform: |
Size: 6144 |
Author:易名杰 |
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Description: 根据样本估计密度曲线的方法，也就是pavzen窗函数法，采用正态窗函数，先画直方图，在估计平滑的密度曲线-Estimated based on the sample density curve method, which is pavzen window function method, using normal windows function, the first histogram drawn in the estimated density curve smoothing Platform: |
Size: 1024 |
Author:wct |
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Description: 中值滤波是对一个滑动窗口内的诸像素灰度值排序，用其中值代替窗口中心象素的原来灰度值，它是一种非线性的图像平滑法，它对脉冲干扰级椒盐噪声的抑制效果好，在抑制随机噪声的同时能有效保护边缘少受模糊-Median filter is a sliding window from inside the gray value pixel sequencing, using a window center pixel value to replace the original gray value, it is a non-linear image smoothing method, its pulse-grade salt and pepper noise interference inhibition effective in suppressing random noise at the same time can effectively protect the edge of less fuzzy Platform: |
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Author:fujay |
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Description: 对所给的谱图进行平滑处理，虑噪，并且多项式窗口平滑求导-To the spectrum of the smoothing processing, taking into account noise and derivation polynomial smoothing window Platform: |
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Author:淡茶 |
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Description: 这个帖子中我想讨论的是移动窗口多项式最小二乘拟和平滑方法，粗糙惩罚方法，以及kernel平滑方法。-Posts in this discussion I think are moving window least squares polynomial fitting smoothing method, crude methods of punishment, as well as the kernel smoothing method. Platform: |
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Author:linyuan |
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Description: 这个文件包含了正弦调频信号的魏格纳威利分布以及经过平滑和加窗后的伪魏格纳威利分布和平滑伪魏格纳威利分布-This file contains a sinusoidal FM signal of the Wigner distribution and Na Weili after smoothing processing window of the pseudo-Wigner-Na Weili smoothed pseudo-Wigner distribution and the distribution of Na Weili Platform: |
Size: 2048 |
Author:李海峰 |
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Description: 计算Born-Jordon时间频率分布，需要输入的参数包括信号、时间、时间和频率的平滑窗口等参数-Born-Jordon calculating time-frequency distribution of the input signals ,including signals, time, time and frequency parameters of the smoothing window and so on . Platform: |
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Author:杨学亭 |
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Description: 本文提出一种基于图像分辨率的自适应分层式图像平滑算法。首先对每个像素在不同分辨率窗口下平滑处理，然后找出该像素被判断为同质区域下的最大窗口，在此，判断方法为比较其同质度和全局鲁棒估计方差的大小。在平滑处理过程中，对同质区域和纹理域分别采用不同算法处理。-This paper presents an adaptive hierarchical image resolution image smoothing algorithm. First, for each pixel smoothing window at different resolutions, and then find the pixel is judged to be the largest homogeneous area under the window, where, judging by comparing their degree of homogeneity and the size of the global robust variance estimation. In the smoothing process, homogeneous regions and textures using different domain algorithm processing. Platform: |
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Author:沉稳 |
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