Hi, Everyone
which kind of features FFT can give for 2D image?
Then from which kind of images we can extract the features the input images like (color, Gray Scale or Binary images). i am considering these features for my work.
thanks in Advance
Satish Kumar
Thank you Remi, actually i need to know which kind of features i may get by using FFT. Because i need to extract the features from Document images for identifying scripts.
See R. C. Gonzalez, R. E. Woods. Digital image processing: Pearson prentice hall // Upper Saddle River, NJ. —2008
It depends on your target you want to detect or recognize!
For example, you can extract Fourier descriptors from a binary image that can be used as geometry features.
FFT is used for deriving the features in frequency domain.
Fourier Transform->number of changes in unit time.
if the time is very short FT will give infinite frequencies. So in case of an image one thing that can be known is, how the respective condition appears in the image.
(basically FFT is taken when signal is non-periodic).
- Badges
- Science topic
- Similar topics
- Control Systems Engineering
- Filtering