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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.
lowpass2
- 为了方便,在m文件中将图像转化成数据矩阵了,不需要额外的图片了,如果想改变图像,则可以将数据删除,改成图片即可。 此GUI功能是:通过滚动条改变截断半径,同步在文本框中显示截断半径大小(也可以直接在文本框中输入所要的截断半径),按Begin,观察图像的低通滤波效果。(截断半径越小,得到的频率越少,图像越模糊,失真越严重)。-In order to facilitate, in the m document images into data matrix, and no addit
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
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)