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tuxiangruihua
- 图像锐化，包含拉普拉斯锐化法 4邻域模板 巴特沃斯高通滤波器锐化， 阶数M=3 截断频率D0=40，梯度算子锐化 sobel和prewi-Image sharpening, including Laplacian sharpening four neighborhood template Butterworth high-pass filter sharpening, the order M = 3 cut off frequency D0 = 40, sharpening sobel gr
lowpass
- 基于matlab的，不同截断半径时低通滤波滤波,及傅立叶反变换再现图像，简单易学，希望对你有帮助。-Matlab based on different cut-off low-pass filter at a radius of filtering, and Fourier Transform reproduce images, easy to learn, and they hope to help you.
dft_hp_filt
- 用于频域滤波的m函数，接受输入一幅图像和一个滤波函数，输出经滤波和剪切后的图像。还有一个高通滤波函数。-For frequency domain filtering m function, to accept the importation of an image and a filter function, the output cut by the filtering and image. There is also a high-pass filtering function.
Imagelow-passfilter
- 低通滤波容许低频信号通过, 但减弱[或减少]频率高于截止频率的信号的通过。对于不同滤波器而言,每个频率的信号的减弱程度不同。-Low-pass filter allows low-frequency signals, but weakened [or decrease] the frequency higher than the cut-off frequency of the signal through. For different filter for each frequency of
low_pass65
- matlab编写截断半径65时低通滤波器对与图像的影响，画图比较滤波前后的对比图。-matlab preparation of cut-off radius of 65 when the low-pass filter and image of the effect of drawing the contrast to compare before and after filtering Fig.
1.2.3
- 利用截止频率不同的频域低通滤波器对图像进行处理，并比较不同截止频率对滤波效果的影响，说明产生差异的原因-Different frequency cut-off frequency domain low-pass filter to the image processing, and compare the different cut-off frequency of the filtering effect, explain the causes of differences
1.2.4
- 利用截止频率不同的频域高通滤波器对图像进行处理，并比较不同截止频率对滤波效果的影响，说明产生差异的原因。-Cut-off frequency of the different frequency-domain high-pass filter to the image processing, and compare the different cut-off frequency of the filtering effect, explain the causes of differences.
image-enhancement
- 下载并读入被噪音污染的Noisychurch图像数据，用Matlab 编程采用下述方法分 别实现该图像的增强操作： 1） 用空域法实现图像的增强，分别采用如下模板操作：2x2 和3x3 的幅值为1 的模板，比较去噪和模糊的折中效果；采用3x3 的中值滤波器进行去噪操作； 采用Laplacian 模板[0 -1 0 -1 5 -1 0 -1 0]进行锐化操作。 2） 用频域法实现该图像的低通和高通滤波，选择合适的截止频率。 3） 用小波分析法实现该图像的低通和
filter
- 低通滤波巴特沃斯低通滤波器的MFC程序，FS是采样频率，fp是截止频率，大家-Butterworth low-pass filter MFC process, FS is the sampling frequency, fp is the cut-off freq(Butterworth low-pass filter MFC process, FS is the sampling frequency, fp is the cut-off freq)