[Insight-users] Getting a reference to a pixel from an iterator

[M.Staring at lumc.nl]

Hi David,

Would the Value()-function do what you need?

PixelType & Value (void);

HTH,

Marius

-----Original Message-----
From: insight-users-bounces at itk.org [mailto:insight-users-bounces at itk.org] On Behalf Of Cory Quammen
Sent: maandag 28 februari 2011 15:55
To: David Doria
Cc: ITK
Subject: Re: [Insight-users] Getting a reference to a pixel from an iterator

> Thanks for confirming there is no way to do this. Using Set() won't 
> work for me - what I was trying to do was:
> std::vector<PixelType*> pixels;
> itk::ImageRegionIterator<ImageType> imageIterator = 
> itk::ImageRegionIterator<ImageType>(image, region);
>   while(!imageIterator.IsAtEnd())
>     {
>     if(someCondition(pixel))
>       pixels.push_back(&pixel);
>     }
> ChangePixels(pixels);

You could switch to an ImageRegionIteratorWithIndex and store the indices of the pixels that pass your condition. After the while loop, you could operate on these pixel values by using the SetPixel() and
GetPixel() methods of your Image.

Cory

--
Cory Quammen
Computer Integrated Systems for Microscopy and Manipulation (CISMM) Department of Computer Science University of North Carolina at Chapel Hill http://www.cs.unc.edu/~cquammen _____________________________________
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