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Title: [REQ] Matlab help Post by: fire on July 17, 2010, 01:20:48 13:20 Can anybody give me the Matlab program for 'the frational Fourier Transform of a Image' Regards... Title: Re: [REQ] Matlab help Post by: blue_17 on July 17, 2010, 11:46:31 23:46 http://en.wikipedia.org/wiki/Fractional_Fourier_transform
http://en.wikipedia.org/wiki/File:FracFT_Rec_by_stevencys.jpg Not in Matlab but is mathematic model Regards from Poland:) Title: Re: [REQ] Matlab help Post by: 2N5109 on July 29, 2010, 03:30:55 03:30 I have not studied fractional Fourier Transforms but it looks like the concept may help other types of processing. It looks intriguing.
I found this file (fpft.m) at: http://www.mathworks.cn/matlabcentral/fileexchange/9200-partial-fast-fourier-transform?controller=file_infos&download=true which also has a link to a descriptive .pdf file at: http://crd.lbl.gov/~dhbailey/dhbpapers/ (#16 and 17 or search "fractional fourier") The paper explains the fractional FFT and applications. The matlab script uses it in a fast partial FFT algorithm. What is your application? 73, 2N5109 |