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image_processing
- 用MATLAB自己编写的一系列图像处理算法。详细说明: ch5_1_1: 图像灰度线性变换 (§5.1.1) ch5_1_2: 图像灰度分段线性变换 (§ 5.1.1) ch5_1_3: 采用对数形式的变换函数进行动态范围压缩 (§5.1.1) ch5_1_4: 图像直方图的均衡化 (§5.1.2) ch5_1_5: 直方图规定化 (§5.1.2) ch5_2_1: 邻域平均的线性平滑滤波法实现降噪 (§5.2.2) ch5_2_2: winner滤波法实现降噪
Digital-Image-Processing-Procedures
- 图像对数变换,图像拉伸和压缩灰度值,图像规定化,均衡化,位图切割,图像放大缩小,图像求反,平或滤波器,理想低通滤波器,理想高通滤波器,巴特低通滤波器-Logarithmic transformation of the image, the image gray value stretching and compression, image-oriented provisions, equalization, cutting bitmap, image zoom, image inverted,
batewosi
- 巴特沃斯滤波器是电子滤波器的一种。巴特沃斯滤波器的特点是通频带内的频率响应曲线最大限度平坦,没有起伏,而在阻频带则逐渐下降为零。 在振幅 的对数对角频率的波特图 上,从某一边界角频率开始,振幅随着角频率的增加而逐步减少,趋向负无穷大。该段代码就是巴特沃斯高通和低通滤波器的设计。-Bart wo filter is a kind of electronic filters. Bart wo filter is characteristic of the passband frequency res
gaoditonglvbo
- 对于初学者来说,这段代码比较容易理解,如果对图像增强有一定的了解的话,此代码就更易理解了。它是对理想高通和低通滤波器的设计。-For starters, this code easier to understand, if the image enhancement have some understanding of words, the code is easier to understand. It is the ideal qualcomm and low pass filter des
P0311
- 利用巴特沃斯(Butterworth)低通滤波器对受噪声干扰的图像进行平滑处理-Using Butterworth (Butterworth) low-pass filter for image noise by smoothing
4
- 布布特渥斯低通滤波器利用叶变换,得到图像的频域信号,进行滤波处理,将结果返回空域。-布布特渥斯 low-pass filter using Fourier transform, to get the image frequency domain filtering process, the results returned airspace.
filter
- 算法实现了同态滤波器,高通滤波器和低通滤波器,是初学者比较好的参考代码-Algorithm to achieve the homomorphic filter, high pass and low pass filters, is a good reference code
exercise2
- 用频率域中的滤波器进行图像处理,包括理想高通滤波器和低通滤波器,butterworth高通滤波器和低通滤波器,高斯高通滤波器和低通滤波器。不调用相关函数,纯数学写。-With frequency domain filter for image processing, including the ideal high-pass filter and low pass filter, butterworth high-pass filter and low pass filters, high pa
filter
- 高通,低通滤波器代码~可以直接使用-high-pass filtering and low-pass filtering
ditong
- 对图像进行噪声处理后运用低通滤波器,以观察滤波器对图像处理的作用示例-Image noise processing, use of low-pass filter in order to observe the example of the filter in image processing
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
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.
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
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
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
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
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