[Insight-users] from gray image to RGB image

[edoardo.belletti at alice.it]

Hello
Is there someone that can explain me how can I convert a gray scale image in a RGB image?
for example if I define:

const unsigned int Dimension = 2;
typedef unsigned char PixelType;  
typedef itk::Image< PixelType, Dimension > ImageType;
typedef itk::RGBPixel< unsigned char > ColorPixelType;
typedef itk::Image< ColorPixelType, Dimension >    ColorImageType;
ImageType::Pointer input = reader->GetOutput();
// (...) some operations with image
ColorImageType::Pointer image_c;

now how can I copy image in image_c?

Thank you very much
Edoardo
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