Re: Help Please

Posted by Lee Berndt on Sep 01, 2014; 2:06pm
URL: http://imagej.273.s1.nabble.com/Help-Please-tp5009424p5009443.html


Hi Greg....thank you for your reply.....I made my problem go away by using the following code:
 
 getHistogram(values, counts, nBins);
   for (i=0; i<nBins; i++) {
      setResult("Value", row, values[i]);
      setResult("Count", row, counts[i]);
      row++;
   }
  updateResults();
 
    m = (getResult("Count",0));
 
thanks again.....Lee
 

William L. Berndt, Ph.D.
239.246.0396
 
 

 
 
-----Original Message-----
From: James gregory (SANDWELL AND WEST BIRMINGHAM HOSPITALS NHS TRUST) <[hidden email]>
To: IMAGEJ <[hidden email]>
Sent: Mon, Sep 1, 2014 5:13 am
Subject: Re: Help Please


Hi,

I would use the 'getHistogram' macro function...

getHistogram(values, counts, nBins[, histMin, histMax])

Then the number of zero pixels is given by 'counts[0]'.

Greg.


________________________________________
From: ImageJ Interest Group [[hidden email]] On Behalf Of Lee Berndt
[[hidden email]]
Sent: 30 August 2014 22:44
To: [hidden email]
Subject: Help Please

Greetings:

I've written a macro to help determine the area of injury to turfgrass (putting
greens)....the macro works great except for the very end....what I need to do is
to get the number of pixels in an image corresponding to count 0 of 256
(black)....I can get the total number of pixels in the image but need the value
for count 0 to create a percentage of black to all other pixels.....how do I get
that value?  Any help is greatly appreciated....thank you.



William L. Berndt, Ph.D.
239.246.0396




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