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- Special Effects
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- Update:
- 2018-12-24
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Description: Fourier Spectrum and Lowpass Filtering in Frequency Domain
(a) Download Fig. 4.41(a) from the book web site and compute its (centered) Fourier spectrum.
(b) Display the spectrum.
(c) Implement the Gaussian lowpass filter in Eq. (4.8-7). You must be able to specify the size, M x N, of the resulting 2D function. In addition, you must be able to specify the location of the center of the Gaussian function.
(d) Download Fig. 4.41(a) from the book web site and lowpass filter it to duplicate the results in Fig. 4.48.
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File list (Check if you may need any files):
| Filename | Size | Date |
|---|
| 傅里叶谱与频域低通滤波 | 0 | 2018-12-24
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| 傅里叶谱与频域低通滤波\Fourier Spectrum | 0 | 2018-12-24
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| 傅里叶谱与频域低通滤波\Fourier Spectrum\fftcenter.m | 235 | 2018-11-04
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| 傅里叶谱与频域低通滤波\Fourier Spectrum\Fig4.41(a).tif | 474102 | 2006-12-01
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| 傅里叶谱与频域低通滤波\Fourier Spectrum\FourierSpectrum.m | 2344 | 2018-11-04
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| 傅里叶谱与频域低通滤波\Lowpassfiltering | 0 | 2018-12-24
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| 傅里叶谱与频域低通滤波\Lowpassfiltering\Fig4.41(a).tif | 474102 | 2006-12-01
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| 傅里叶谱与频域低通滤波\Lowpassfiltering\Lowpassfiltering.m | 1148 | 2018-11-04 |
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