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filtering
- 同态滤波,高斯低通滤波器，对数变换，幂变换-homomorphic filtering
Semi-fragile-spatial-watermarking
- 提出一种基于图像认证的半脆弱数字水印算法。该算法具有较好的自适应性，采用改进的低通滤波器，根据人眼的分辨能力设定 梯度阈值。实验结果证明，该算法对常规图像处理操作具有较强的鲁棒性，能够抵御JPEG顶级有损压缩，同时对于恶意篡改攻击(擦除、扭曲、挤压、光照等操作)表现出脆弱性，可检测出篡改的痕迹和类型。 -A semi-fragile watermark algorithm for image authentication is proposed, which has adaptabilit
pcb2
- Matlab图像处理,图像平滑滤波，二阶巴特沃兹低通滤波，二阶巴特沃兹高通滤波，中值滤波- Matlab image processing, image smooth filtering, second order bart woz low pass filtering, second order bart woz high-pass filter, median filter
tuxiangzengqiang
- 图像增强滤波器程序，分别在时域和频域中实现，并包括高通和低通滤波器。-Image enhancement filter program in the time domain and frequency domain, and including high pass and low pass filter.
Wavelets
- 小波数字图像处理，小波（1~3层图像处理），行变换，列变换，滤波（高通、低通）。图像增强，融合等-Wavelet digital image processing, wavelet (1 to 3 layers of image processing), row transform and column transform, filter (high pass, low pass). Image enhancement, integration, etc.
three-kinds-of-lowpass-filters
- 编写理想低通滤波器、巴特沃斯低通滤波器、高斯低通滤波器函数-ideal_butterworth_gaussian lowpass filters functions
NLmeans-and-lpfilter
- 数字图像处理中的图像去噪部分，用低通去噪和non-local means两种方法，其中用non-local means，可把信噪比提高10dB左右。-Digital image processing, image denoising part of the low-pass de-noising and non-local means are two ways in which non-local means to signal to noise ratio increased by about
fftlowpass
- 利用matlab实现数字图象处理的理想低通滤波器-Using matlab to achieve the desired low-pass filter! !
Untitled
- 采用二阶巴特沃斯（Butterworth）低通滤波器对叠加噪声后的图像进行平滑处理-Using two order Butterworth ( Butterworth ) low-pass filter on the superposition of noise in the image smoothing
IPLib
- 二维傅里叶变换和反变换，低通滤波器的实现和影像条带的去除-2 dimension fourier transfer and anti-transfer ,low-pass filter and wipe off the stripe of image
Matlab-image-filiter
- 用中值滤波，多维滤波，使用中心为-4,-8的拉普拉斯滤波器，高斯低通滤波，拉普拉斯滤波器进行滤波处理-Center of median filtering, multi-dimensional filtering,-4,-8 Laplace filter, the Gaussian low-pass filter, Laplacian filter to filter the
noise
- 1. 用 butterworth和理想低通滤波器对受椒盐噪声和高斯噪声污染的图像进行平滑处理, 计算平滑前后的PSNR(峰值信噪比). 2. 用 3x3邻域平均平滑和3x3中值滤波对受椒盐噪声和高斯噪声污染的图像进行平滑处理, 计算平滑前后的PSNR(峰值信噪比). 3. 用 roberts算子和Laplace算子对一图像进行锐化处理, 得到其边缘二值图像.-Salt and pepper noise and Gaussian noise images with butterworth
vcPPfingerprint
- 基于小波变换的指纹图像滤波处理，基于小波变换的图像滤波处理，指纹图像的低通滤波的实现及运行结果，指纹图像的高通滤波-The fingerprint image filtering based on wavelet transform, image filtering based on wavelet transform, the realization and operation results of the low-pass filtering of fingerprint images, f
gaopinzengqiang
- MatLab理想低通滤波及高通滤波实现高频增强-MatLab ideal low pass filter high-pass filter and realize high frequency increased
Butterworth-low-pass-filter-
- 1阶巴特沃兹低通滤波器 将原定义在图像空间的图像转换的频域空间，利用频域空间的特有性质进行加工，最后再转换到图像空间-An order Butterworth low-pass filter the original definition of the image of the image space into the frequency domain, frequency domain-specific nature of processing, and finally converted
67197840pinjie
- 图形图像的拼接，采用高通和低通的方式进行拼接，快捷而简单，希望能被采纳-Graphic image stitching, high-pass and low pass for splicing, fast and simple, wants to be the adoption of
chap10
- ch10_1_1：利用函数imfilter实现图像滤波 ch10_2_1：利用频率变换法生成一个2-D滤波器 ch10_2_2：利用频率采样法生成一个2-D滤波器 ch10_2_3：利用窗口法生成一个2-D滤波器（ ch10_2_4：设计一个截止频率为0.5的理想低通滤波器-ch10_1_1: Image filtering using function imfilter ch10_2_1: the use of frequency transformation method t
LOG
- 本程序是基于vc的log算子，进行边缘检测。log算子是拉普拉斯算子和高斯低通滤波的结合，希望我的程序对大家的学习有所帮助。-This procedure is based on the vc log operator, edge detection. log operator is a combination of Laplacian and Gaussian low-pass filter, and want my program to help everyone to learn.
Butterworth-low-pass-filter
- 图形图像处理中巴特沃兹低通滤波器matlab代码-Butterworth low-pass filter code in the Graphics and Image Processing
Heat_Equation
- 热传导方程图像去噪 偏微分方程处理图像的基本程序 效果等同高斯低通滤波-use heat equation to reduce the speckle