Re: modification to the BackgroundSubtracter class

Posted by Wayne Rasband on
URL: http://imagej.273.s1.nabble.com/modification-to-the-BackgroundSubtracter-class-tp3702953p3702955.html

When removing "package ij.plugin.filter;" to convert a built in  
plugin to a user plugin you have to replace it with "import  
ij.plugin.filter.PlugInFilter;" or the compiler will not be able to  
find the PlugInFilter interface.

-wayne

On Apr 29, 2006, at 8:44 PM, Ben Liu wrote:

> Hi there,
> I modified the BackgroundSubtracter class by adding one method:
>         public void setWhiteBackground(boolean b) { whiteBackground  
> = b; }
> and delete: package ij.plugin.filter; changed its name to  
> BackgroundSubtracterM.java; Then I saved to plugin folder.
>
> I used in a plugin as:
>             BackgroundSubtracterM bgs = new BackgroundSubtracterM();
>             bgs.setWhiteBackground(false);
>             bgs.subtractBackround(ip, 50);
>
>
> D:\Program Files\ImageJ\plugins\ALM\BackgroundSubtracterM.java:23:  
> Interface PlugInFilter of class BackgroundSubtracterM not found.
> public class BackgroundSubtracterM implements PlugInFilter {
>
> But it does not happen if  I use the  original  class:
>             BackgroundSubtracter bgs = new BackgroundSubtracter();
>              ///bgs.setWhiteBackground(false);
>              bgs.subtractBackround(ip, 50);
>
> What is wrong with my modification?
> Thanks.
> Bian
>
>
>
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