Split the Image into 30 channels

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M@lik Ali
M@lik Ali 2013-2-7
Hi All,
i need to
splits an image into 30 channels in frequency domain with equal divisions in angular di-rection and octave division in radial direction
please help me,
Actually i want to implement the homogeneous Texture Descriptor of MPEG-7. You can find the detail if interested just read HTD at page 11
http://erdos.csie.ncnu.edu.tw/~hychen/multimedia/reading/presentation/%28P6%29%20Color%20and%20Texture%20Descriptors.pdf
Thanks in Advance
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M@lik Ali
M@lik Ali 2013-2-7
Thanks for the response Can you just suggest me how to
splits an image into 30 channels in frequency domain with equal divisions in angular direction and octave division in radial direction
Walter Roberson
Walter Roberson 2013-2-7
What does it mean for frequency to be divided by angular direction, or radial direction?

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回答（1 个）

Image Analyst
Image Analyst 2013-2-7
Have you tried fft2()?
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Walter Roberson
Walter Roberson 2013-2-7
编辑：Walter Roberson 2013-2-7
Likewise, I seldom bother to read papers when the Question is so unclear.
When Questions are clearer but might be missing explaining a term, I do sometimes skim papers, looking just for that one little bit of information, but often not bothering to try to understand the parts before or after.
Sometimes a Question sounds interesting enough that I am willing to spend a fair bit more time... if I am in the mood... if I am not tired... if I do not have a good book to read... if I am not engaged in one of my other activities... if I have already cleaned my mailbox of the 200 or so spam/scam messages I receive every day... if I don't hear any chocolate calling my name...
M@lik Ali
M@lik Ali 2013-2-7
Thanks for you kind response, the information to read is only 10 lines just to see the equations, don't need to read the whole paper.
what i want is how to splits an image into 30 channels in frequency domain with equal divisions in angular direction and octave division in radial direction . in the paper at page 11 is under section HTD is some mpre information because they are using 2D gabor Function.
please help me out.

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