[Insight-users] Generic Image Reader

[Sumit Kumar]

Hello
I have a question regarding Image File reading. For
simplicity I would like to read a 2D image (grayscale
or color), but it can very well extend to
multi-dimensional images.

Is there a way in itk to template this operation,
rather that writing two specific instances ?

For example,

typedef float PixelType;
typedef itk::RGBPixel<PixelType> RGBPixelType;
typedef itk::Image< RGBPixelType, 2 >                 
CImageType2D; 
typedef itk::ImageFileReader<CImageType2D> readerC;

would be one such example for reading a 2D RGB image.
Similarly, I can write something for a grayscale
image;

For example,
typedef itk::Image< PixelType, 2 >GImageType2D;
typedef itk::ImageFileReader<GImageType2D> readerG;

Now, is there a way to "generalize" this process via
templates ? Or is there a way in itk to automatically
determine what type of image is being read ? Or are we
resigned to using a default RGBPixel for reading the
image, no matter what type of input is being read
(something similar to QImage in Qt).

Your inputs will be greatly appreciated.
Sincerely
Sumit


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