Re: Area measurement

Posted by fra-off on Sep 09, 2009; 4:00pm
URL: http://imagej.273.s1.nabble.com/Area-measurement-tp3691257p3691263.html

Thanks

I'm tring to reconstruct the origninal file by octopus

will see

Francesco

Michael Schmid-3 wrote

Hi Francesco,

to me it looks like a problem where image processing won't help, I  
would rather suggest a solution based on an improved method of image  
recording. If this is microtomography using x rays with rather low  
energy, maybe you could have two different filters and subtract the  
results, to get some contrast from the sulfur K edge (2472 eV)? This  
should make it more easy to discriminate between gypsum and calcite.

Michael
________________________________________________________________

On 8 Sep 2009, at 10:46, fra-off wrote:

> If I will find a method to do this automatically I will be crazy for
> happiness!
> But I will be happy even finding some resolution for only one slice.
> Anyway, even filtering, or using Despeckle, the problem still exist.
> I think that I have to find some command or plugin to differentiate to
> distinct material that have similar grey value
> Regard your question, the "bands" are covering of gypsum around  
> calcite
> grains. And every grain have different thickness of gypsum. Every  
> picture
> represent a slice perpendicular to z axis of a reactor.I sent a detail
> because in normal size you can not see the bands
>
> Best regards
>
> Francesco