Re: Harris corner values

Posted by Burger Wilhelm on Jun 20, 2010; 8:13am
URL: http://imagej.273.s1.nabble.com/Harris-corner-values-tp3687871p3687872.html

Hello Donny George,

the default settings (for 8-bit gray images) for the plugin's dialog are obtained from class HarrisCornerDetector (in package harris):

   DEFAULT_ALPHA = 0.050f;
   DEFAULT_THRESHOLD = 20000;

The resulting image is a brightened (contrast-reduced) copy of the input image and the detected corners should be marked by black crosses.

Did you try the default settings and/or which values did you enter?
Does your image contain any corners at all?

--
Wilhelm

________________________________________
From: ImageJ Interest Group [[hidden email]] On Behalf Of Donny George [[hidden email]]
Sent: Sunday, June 20, 2010 09:47
To: [hidden email]
Subject: Harris corner values

Hello all

I used the plugin form the website http://www.imagingbook.com/index.php?id=98 for the harris corner detector in imagej

and once i run i am able to detect corners. all i get is a brightened image. the values include alpha, threshold and max. points i am assuming this is due to the wrong values that i gave.could be also something silly than i think. could someone guide me with the right values so as to get the desired result.