Posted by
Sasmita Rath on
URL: http://imagej.273.s1.nabble.com/Array-question-tp3695862p3695864.html
Dear Wayne,
So I did as follows.
ImageJ>Plugins>New>
I creat a new plugin and run it. My pugin program is as follows:
a=newArray (24832000);
z=0;
for(k=0;k<388;k++) {
run("Text Image... ", "open=[C:\\Documents and Settings\\Desktop\\20080423-152704--58C-255x-985ms\\" +1000+k + ".dat]");
for(i=0;i<512;i++) //width
{for(j=0; j<125; j++)
//height
{
y=getPixel(i,j);
a[z]=y;
print(a[z]);
z=z+1; }
}
close();
}
But I get the error message.saying java out of space ..............
Please help.
Sasmita
----- Original Message -----
From: "Wayne Rasband" <
[hidden email]>
To:
[hidden email]
Sent: Tuesday, June 17, 2008 4:30:05 PM GMT -06:00 US/Canada Central
Subject: Re: Array question?
> Dear ImageJ group,
> Is there a maximum limit for an array in imageJ macro?I want to save
> 24832000 many pixel values (i.e.my array length is 24832000 ) in an
> array.When I do that I get an error message saying
> "java.lang.OutOfMemoryError: Java heap space ".
You don't want to create a 24,832,000 element array in the ImageJ macro
language. Each element requires 36 bytes, so a 24,832,000 element array
would require 852MB! In a plugin, a 24,832,000 element byte array would
require only 24MB. Plus you would be able to access the elements at
least 100 times faster.
-wayne