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For a more complex project, I need to compute the approximate, relative distances of objects from two images (from stereo-cameras). Practically what this neat tutorial explains: https://chrisjmccormick.wordpress.com/2014/01/10/stereo-vision-tutorial-part-i/ and with a result like that
Think I shouldn't be reinventing the wheel for this project and since speed is very important (realtime from two videostreams) I'm looking for a native library (preferably in C++ where the whole project is written in) for this task.
Does anyone have a suggestion?
Open source would be greatest but not mandatory.
Huge thanks in advance!
try with LIBELAS library (Library for Efficient Large-scale Stereo Matching).
Best!
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is it possible to draw a adjacency graph like the one shown below in c++
and show it graphically.
is this even possible with C++
if yes can some one please point me to the correct library or tutorial.
or an example or would be really helpful.
i would be using visual studio 2015 for this task.
There are plenty of plotting libraries google search will offer you, but they do require downloading source and building them which is sometimes not trivial especially for a beginner.
I suggest looking at graphviz which as you can see has similar graphics to your example. Good walk through on how to build it could be found here with specifics related to VS here.
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For a dataset of N records and M columns (features), I want to visualize it in 2d or 3d. Does anyone know if such a c++ library exists?
Thanks to #MatthewLueder's comment pointing out the PCA, I found libpca.
I assume you want online plotting. That is, animation plot at runtime, correct?
If so, then there are few libraries and one of which is gnuplot-iostream http://www.stahlke.org/dan/gnuplot-iostream/. I use it and recommend it. It requires the Boost library however.
Otherwise, you can write your data on files and use in a subsequent step a visualizer of your choice. Again, gnuplot is very powerful.
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Is there anything in std library or boost (or good enough libraries) which let me make good plots in c++? I would need something like matplotlib of python or gnuplot.
Thank you
There are a couple of "native" C++ libraries for plotting. The two I'm familiar with are:
CERN's ROOT framework - This gives you a lot more than just plotting, and is specifically geared toward analysis of large amounts of data, but it does have a lot of fairly advanced plotting tools.
MathGL - though not as powerful or as easy to use as ROOT, it provides a simple way to plot all but the most complex of plots.
There is nothing "standard " about these libraries, but they are both fairly well supported.
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Do you know of a good open source financial library written in C (preferably) or C++?
I already looked at Quantlib, which seems too complicated for me, since I just want some basic computations (total cost of credit, all in-cost credit rate...)
Thank you very much!
When programming for financial derivatives, I absolutely loved Bernt Arne Ødegaard's resource here:
http://finance.bi.no/~bernt/gcc_prog/recipes/recipes/node1.html
It probably has what you want, and then some. If it doesn't, I have to agree with James Black.
Try:
http://www.metasystems.no/downloads/index.html
Download the Meta Financial Functions Library Beta 0.0.4
Also take a look at my application which uses both
Financial Recipes in C++ and the Meta Financial Functions Library
to generate option chains for 120 models.
General website:
http://opensourcefinancialmodels.com
GPL3 Source Code:
http://opensourcefinancialmodels.com/optionmatrix.tar.gz
Windows Installer:
http://opensourcefinancialmodels.com/installoptionmatrix.exe
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We want to include data visualization in our desktop GUI (mostly timelines and graphs; clickable, draggable). We want to restrict to open-source, non-copyleft C++ libraries that allow commercial use and are portable across many platforms. Which library can I use? Our GUI is based on WxWidgets.
there is VTK.
And if data visualization is your thing, have a look at opendx too.
I think this question would be easier to answer if you also stated which other GUI components you use. Perhaps that limits the choice of available libraries. Since you're C++ and cross-platform, maybe wxWindows? Would be good not to have to guess.