Dear ImageJers,
the new release of LiveWire Plugin has been released.
To download go to
http://ivussnakes.sourceforge.net/***Make sure you have ImageJ 1.37r or later and Java 1.5 ***
If you have problems with the page, go straight to:
http://sourceforge.net/projects/ivussnakesNEW FEATURES
Works with color:
Now LiveWire is able to segment color images. This is done converting them
to grayscale and then using the standard procedure (Thanks, Volker Bäcker!)
Run with macro: one can now use the following macro to use LiveWire
run ("LiveWire", "x0=50 y0=30 x1=95 y1=95 magnitude=43 direction=13
exponential=30 power=10");
Just go to Plugins->Macro->Record...
Then type the above macro, give it a name and press the "Create" button.
Now save the file and go to Plugins->Macro->Install... Then, choose the
macro file you've just created.
There'll be a new menu under Plugins->Macro->"Your New Menu". Choose it to
run the Macro.
Make sure you've set the points inside the picture :)
New cost feature: Exponential
Now a new feature was added to cost. Basically, it gives more weight to
paths that are over a low cost resultant gradient and paths over high
gradients have less weight, being cheaper paths. This is done through the
function:
fe = Math.exp(-pw*x)*fg;
where fe is the exponential cost and pw is the power parameter. Fg stands
for the gradient magnitude cost (the one whose weight is affected by the
"Magnitude" slider)
It works better if the other weights are set to zero (except for the "Power"
one).
Better user interface:
Following code and opinions given by Volker Bäcker, the user interface is
now better, so that the user is now able to finish segmentation through
right-click and start another with left-click. To move points or add new
points to the existing one, the user should press the keyboard shift key at
the same time.
Thanks for the great feedback!
Daniel Lelis Baggio
Instituto Tecnologico de Aeronautica
Locked
