Re: median filter that preserves peaks

Posted by Neil Fazel on Sep 08, 2013; 6:23pm
URL: http://imagej.273.s1.nabble.com/median-filter-that-preserves-peaks-tp5004693p5004719.html

Hi Alexandre,

    Thank you for the tips. I decided to give wavelet filtering a try and downloaded the ImageJplugin Haar Wavelet Filter (http://imagej.nih.gov/ij/plugins/haar-wavelet-filter.html). After converting the original 32-bit image to 8-bit image (as required by the filter) and running the filter using default parameters, I got a Java out of bounds error:

        ImageJ 1.47s; Java 1.6.0_51 [32-bit]; Mac OS X 10.6.8; 25MB of 1500MB (1%)
 
        java.lang.ArrayIndexOutOfBoundsException: 275
        at Haar_wavelet_filter.Haar_1d(Haar_wavelet_filter.java:382)
        <snip>

I'll try to debug this; but based on the pictures on the Mathworks page you sent, wavelet filtering is worth pursuing.

Regards,
Neil

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