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Message-ID:  <[log in to unmask]>
Date:         Fri, 2 Jul 2004 10:03:42 -0500
Reply-To:     ImageJ Interest Group <[log in to unmask]>
Sender:       ImageJ Interest Group <[log in to unmask]>
From:         Wayne Rasband <[log in to unmask]>
Subject:      Re: Masks for ROI (Re: "find similar" or equivalent)
In-Reply-To:  <[log in to unmask]>

> Quite right, that is why I specified "well behaved"
> particles etc.  Unfortunately I don't have the coding
> expertise to generate the plugin myself (yet), but I
> wondered if the procedure would work.   Where in the code
> does the Wand function detect the <SHIFT> key, and composite
> the ROI's?  Would it be possible to "hardcode" that into the
> plugin so that it continues adding regions until it runs out
> of centroids?
>
> I still think a "select by color" would be the safest way to
> convert binary to selection, but I am not quite sure how to
> go about it.  Any ideas?

Here is a macro that converts a binary mask to a composite selection.

   // This macro creates a composite selection from a mask
   requires("1.33c"); // setKeyDown() added in v1.33c
   run("Set Measurements...", "area perimeter circularity decimal=3");
   run("Analyze Particles...",
       "minimum=1 maximum=999999 show=Nothing clear record");
   for (i=0; i<nResults; i++) {
       x = getResult('XStart', i);
       y = getResult('YStart', i);
       if (i>0) setKeyDown("shift");
       doWand(x,y);
   }

-wayne

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