: Misc.
: Imcalc Tool
: Complex Image manipulation
目次
- rmdc - remove dc component of the TOS image. Useful when
wishing to display the results of a fft.
- quad - create a double sized image from TOS with 4 fold symmetry. This allows fft calculations to be used to give the equivalent
DCT manipulations which eliminate boundary effects in processes such as
deconvolution.
- fft - compute fast fourier transform of TOS image.
- ffti - compute inverse fast fourier transform of TOS image.
- power - compute power spectrum of TOS fft image.
- fgradx - compute x derivative in the fourier domain of complex TOS image. This method for derivative estimation can sometimes
give more accurate estimates than spatial filtering, particularly
if a smoothing step is not appropriate.
- fgrady - compute y derivative in the fourier domain of complex TOS image.
Other comments as above.
: Misc.
: Imcalc Tool
: Complex Image manipulation
目次
root
平成24年2月7日