[Insight-users] RGB Input to ImageFileReader defined with 'unsigned char' type ?

[Sharath Venkatesha]

Hi,

I observed that it works, if I give RGB input image to a ImageFileReader defined with 'unsigned char' type. 
Is the behaviour defined?Are there many approximations involved?

I generally use  itkRGBToLuminanceImageFilter to convert RGB input images to grayscale, before performing registration.


Thanks,
Sharath