FFT and line profile

[Steve Tang]

Dear All,

I am a beginner of ImageJ. I want to use ImageJ to show line profile and
periodicity of images from TEM, SEM, etc.

I know how to generate FFT. How can I get line profile from FFT?

Thanks a lot!

Steve Tang

UCSB

[Joachim Wesner]

Hi Steve,

look up the List Archive

https://list.nih.gov/cgi-bin/wa?S1=imagej

for

"FFT along line in image"

JW

ImageJ Interest Group <[hidden email]> schrieb am 05.05.2008 19:18:18:

> Dear All,
>
> I am a beginner of ImageJ. I want to use ImageJ to show line profile and
> periodicity of images from TEM, SEM, etc.
>
> I know how to generate FFT. How can I get line profile from FFT?
>
> Thanks a lot!
>
> Steve Tang
>
> UCSB

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[Cornelius Sicker]

Hi Steve,

Steve Tang wrote:
> I know how to generate FFT. How can I get line profile from FFT?
you can get a line profile in an arbitrary image by defining a line
selection (straight, segmented oder freehand) and pressing "Ctrl+K" (or
just "K" on some machines) to execute "Analyze > Plot Profile".

Please refer to http://rsb.info.nih.gov/ij/docs/menus/analyze.html#plot 
for further information.

Best Regards,
Cornelius