Tsur

Yes you are probably correct , you did not link openblas correctly. Try removing the -lopenblas and see if there are more missing symbols(if yes then it will indicate that...

@mauro3 MWE would be a way to add finalizers to constructed mutable structs

When do you add a finalizer? Usually at object creation time. Otherwise I have to manually add a finalizer every time I construct a new object.

@davidbp `label_components!(L,B)` returns method error for me, but I did manage to call it. It indeed gave around 2x speedup . So I guess the title should be changed there...

For the centroid finding itself I need full resolution since I am doing tracking not recognition. So I need highest accuracy , but indeed as @SimonDanisch pointed out, maybe localising...

Thanks @timholy for all the work you are doing , I would love to contribute but am currently swamped. I think that in order to come close to openCV performance...

A quick run through some openGL tutorials reveals that the convention is that light position is given in eye (Camera) space. therefore it is easy to issue a PR ,...

Hi, glad that you like it. The simplest workaround to what you want is by extending `Signals` like this: ``` using Signals Signals.Signal(dt::DataType, args...) = begin Signal(args...) do args dt(args...)...