Re: variance of pixel values

Posted by Seth Pappas on Jan 19, 2015; 3:12pm
URL: http://imagej.273.s1.nabble.com/variance-of-pixel-values-tp5011278p5011281.html



This would be a job for the stacking function, as long as all your images are of the same scene.
There is an image 'pulling' batch utility (Raw File Opener) you can find in the IJ wesite that opens a series of images,.(it works for raw images).
Then stack them. Then "Z project' them, selecting Standard Deviation (Image/Stacks/...). You will get an image of standard deviation for each pixel 'through' the stack. Then, presumably, square that value to get the variance.



 

 

 

-----Original Message-----
From: Василий Поп
 ков <[hidden email]>
To: IMAGEJ <[hidden email]>
Sent: Mon, Jan 19, 2015 9:42 am
Subject: Re: variance of pixel values


Hello
Why u cant get values for mean and sd and calculate variance urself? If I
have got your idea right


2015-01-19 17:12 GMT+03:00 rabih assaf <[hidden email]>:

> Hello,
> I need a way or a plugin that can calculate the variance of pixel values (
> progressively) in an image.
> Thanks in advance,Rabih
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

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