FFT and Inverse FFT problem for an Electron Microscope Image

Posted by Rosenberg, Mark F on Aug 05, 2015; 8:21pm
URL: http://imagej.273.s1.nabble.com/FFT-and-Inverse-FFT-problem-for-an-Electron-Microscope-Image-tp5013915.html

I would be so grateful for any direction to this problem I have encountered with Image J please.

I am using OS X 10.10.3 and Image J 1.50 a.

If I open an Electron Microscope Image in Image J  and generate  an FFT and then  save the FFT as “FFT of  IMAGENAME”  in tif  or zip format, reopen the FFT in Image J  and do an Inverse FFT I can  regenerate the original image as expected.

However, if I rename “FFT of  IMAGENAME” to  any other name but  exclude “FFT of ”  in the filename   I cannot do an Inverse FFT  and if  I do an FFT the Image is "lower resolution”  .

I have looked at the Info for FFT and all I can see is a change in ID number from -79 to -80 and a change in “Screen Location” coordinates. I don’t know how to edit these.

Does anyone have any suggestions  how to get round this renaming problem please because I would like to use the filename in a subsequent program which requires a different format ?

Thank you for your help.

--
ImageJ mailing list: http://imagej.nih.gov/ij/list.html