[vtkusers] How get pixel data in VTK?

[Mark Wyszomierski]

Hi,

It's definitely possible to get the scalar value from a vtkImageData
object. You need to know the type of data your object is stored in
though, for example you'll have difficulty getting the scalar value if
your data is three component RGB and you're trying to get a single
pixel scalar pixel value.

I have an example of getting the pixel value that the mouse moves over
in an image here:

  http://devsample.org/index.php?option=com_content&task=view&id=48&Itemid=27

which may help.

Mark


On Thu, Mar 27, 2008 at 1:37 PM,  <yenanqu at scs.fsu.edu> wrote:
> Hi, all,
> I found bunch of the VTK methods to retrieve pixel data from vtk
> object, such as
> GetPixelData, GetRGBACharPixelData, etc, but none of them is working,
> Does anyone know how to get pixel data from VTK object? Thanks in
> advance.
>
> Yenan
>
> ----------------------------------------------------------------
> This message was sent using IMP, the Internet Messaging Program.
>
>
> --
> This message has been scanned for viruses and
> dangerous content by MailScanner, and is
> believed to be clean.
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
>