LoG Filtering

Authors: Lokesh Taxali (lkt@cse.unsw.edu.au) and Dr. Jesse Jin (jesse@cs.usyd.edu.au)
Limitations:Only works with 8-bit images
Source: Log_Filter.java
Installation: Download Log_Filter.class to the plugins folder and restart ImageJ.
This plugin performs LoG Filtering on 8-bit grayscale
images and stacks. The usefulness of this plugin is that
the LoG Filtering is highly customisable.

User input (via GUI) and suggested values:

 * Sigma (cfsize) : The width of filter centre  (3,5,9,17,35)
 * FilterWidth 'w': The width of filter, aka support  (2,3,4)
 * Threshold 'thr': The threshold for 1 D DoG Filtering
 * Delta          : The delta level for adjusting zero crossings  (-1 .. 1)
 * Mode of output : 0: Filtering results in intensity 0 .. 255
 *               1: absolute value of filtering
 *               2: results representing values -1, 0 or 1
 *               3: Zero crossings overlaid on original image
 *               4: Zero crossings only

The code was developed in UNSW, Australia as part of
Honours thesis.

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