[Insight-users] Extract char image type from vector<char, dim> image type

[Bradley Lowekamp]

Hello,

I believe the VectorIndexSelectionCastImageFilter is what you are looking for:
http://www.itk.org/Doxygen/html/classitk_1_1VectorIndexSelectionCastImageFilter.html

Brad

On Nov 12, 2012, at 5:59 AM, wydesenej <wydesenej at gmail.com> wrote:

> Hi,
> 
> i have itk image types defined as follows:
> 
> typedef itk::Vector< unsigned char, 10 >           VectorPixelType;
> typedef itk::Image< VectorPixelType, 3 >         VectorImageType;
> typedef itk::Image< unsigned char, 3 >             UCharImageType;
> 
> On input i have number of vector component to extract (number from 0 to 9)
> and pointer to VectorImageType.
> I want to extract UCharImageType from VectorImageType with scalar values
> based on extracted component of vector image.
> 
> Example:
> 
> input VectorImageType
> pixel [0,0,0] = <4,5,7,0,4,5,6,0,4,7>
> pixel [0,0,1] = <0,4,0,0,1,3,5,9,0,0>
> pixel [0,0,2] = <1,1,0,0,0,0,7,0,6,0>
> etc.
> 
> extract component 0:
> UCharImageType
> pixel [0,0,0] = 4
> pixel [0,0,1] = 0
> pixel [0,0,2] = 1
> 
> extract component 1:
> UCharImageType
> pixel [0,0,0] = 5
> pixel [0,0,1] = 4
> pixel [0,0,2] = 1
> 
> etc.
> 
> 
> I didnt found any filter to do this.
> Please any suggestions?
> 
> 
> 
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