[Insight-users] Re: Display histogram

[Luis Ibanez]

Hi Jimmy,

Displaying a histogram can be done in many different ways,

A) You could use the XYPlot Actor and/or Widget classes from VTK

   http://www.vtk.org/doc/nightly/html/classvtkXYPlotActor.html
   http://www.vtk.org/doc/nightly/html/classvtkXYPlotWidget.html


B) You could use the Fl_PlotXY from FLTK  Baazar

       http://www.fltk.org/links.php?V237


C) You could create a 2D image with the drawing of the
    histogram plot, and save it as JPEG, BMP, PNG...


If you want an example on how to display a histogram,
you may want to look at the code in SNAP:

         InsightApplications/SNAP

more specifically in

   InsightApplications/SNAP/
         UserInterface/MainComponents/
                          IntensityCurveBox  .h .cxx



Regards,


     Luis



---------------------
Jimmy Wong wrote:
> Dear Luis,
> 
> May I know how to display a histogram of a specified image? Do I need 
> VTK or FLTK?
> 
> I have sucessfully displayed the image via VTK. Now I want to draw the 
> histogram.
> 
> Can you teach me how? If possible, can send me example code?
> 
> Thank you very much.
> 
> Zhimin
> 
> 
> 
>