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利用小波变换系数重构图像,实现图像降噪地方法

于 2020-07-04 发布 文件大小:507KB
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  根据小波变换和噪声信号地能量分布特性,提出了一种先用小波变换对含噪图像进行多尺度分解,求出各尺度小波变换高频系数地噪声方差和阈值,利用各尺度地阈值对高频系数进行处理,然后利用小波变换系数重构图像,实现图像降噪地方法。(According to wavelet transform and noise signal and energy distribution characteristics, a first wavelet transform of the noisy image multiscale decomposition, obtained the high-frequency-scale wavelet transform coefficients and noise variance and thresholds, using the scale to the threshold value of the deal with high-frequency coefficients, and then the use of wavelet transform coefficients reconstructed image, to realize image denoising methods.)

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基于小波变换的图像降噪.pdf

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  • scope
    vc实现虚拟示波器,没有测试过不知道能用吧(vc virtual oscilloscope not tested do not know can)
    2012-09-20 15:11:28下载
    积分:1
  • DWT
    离散小波变换程序 实现了4层离散小波变换 可运行的程序代码(The discrete wavelet transform procedure achieved a 4-layer discrete wavelet transform operable program code)
    2021-03-29 12:39:10下载
    积分:1
  • Image-zoom---modified-WT
    实现文章 李根.基于小波变换修正的双线性图像插值图像放大方法,信息技术,2010.9 一文的仿真。包括自编的双线性插值和最近邻插值方法。(Lee, realize the article based on wavelet transform image modified bilinear interpolation method of image magnification, information technology, article 2010.9 of the simulation. Including self bilinear interpolation and nearest neighbor interpolation method.)
    2011-10-31 15:17:32下载
    积分:1
  • xiaobotiqu.m
    关于小波包变化的,特征提取的一些程序,可直接运行成功。(Wavelet packet feature extraction)
    2013-05-07 10:12:56下载
    积分:1
  • Image_Processing
    数字图像获取, 处理及实践应用源代码——很多有用的图像处理的源代码:图像显示(原图、抖动),图像增强(灰度变换、直方图均衡、多种滤波器、伪彩色增强等),图像复原(运动模糊、逆滤波等等),图像变换(傅立叶变换、快速傅立叶变换、离散余弦变换、沃尔什变换、霍特林变换、小波变换、小波反变换),图像编码(霍夫曼编码、香浓-费诺编码、算术编码、位平面编码等),图像识别。(Digital image acquisition, processing and practical application source code- a lot of useful image processing source code: Image Display (image, jitter), image enhancement (gray-scale transformation, histogram equalization, multi-filter, pseudo-color enhancement, etc. ), image restoration (motion blur, inverse filtering, etc.), image transform (Fourier transform, fast Fourier transform, discrete cosine transform, Walsh transform, Hotelling transform, wavelet transform, wavelet transform), image coding (Huffman coding, Shannon- Fenno coding, arithmetic coding, bit plane coding, etc.), image recognition.)
    2020-06-26 03:20:02下载
    积分:1
  • xiaobo
    利用小波变换,通过设置阈值对图像进行去噪。 首先对图像用小波进行2层分解,然后通过设置硬阈值和软阈值的方法,对图像高频部分去噪。(The wavelet transform is used to denoise the image by setting threshold. Firstly, the image is decomposed into 2 layers by wavelet, and then the high frequency part of the image is denoised by setting the hard threshold and the soft threshold.)
    2020-09-14 12:17:56下载
    积分:1
  • 3
    说明:  故障行波波头识别:模极大值原理识别故障行波波头(Modulus maxima principles identified wave head)
    2013-09-23 11:35:05下载
    积分:1
  • wpdec2--function
    各种小波包函数的matlab 实现,对理解小波包很有用处(Various wavelet packet function of matlab, is very useful to understand the wavelet packet )
    2020-09-14 11:47:57下载
    积分:1
  • biterate
    二次小波变换的方法用于数字信号码元速率估计(wavelet transform for bitrate estimation of digital modulated signal)
    2012-06-05 10:29:32下载
    积分:1
  • imageTUXIANGyantuo
    小波变换何晓波图像处理,一个图像延拓的程序,用MATLAB语言编写。请珍惜(何晓波wavelet transform image processing, an image extension of the procedure, using MATLAB language. Please Value)
    2008-04-02 12:51:49下载
    积分:1
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