[Insight-users] Translation, Rotation and Scaling

[John D]

Hi Ramon,

  Thanks for your reply. I see that the Similarity2DTransform has an uniform
scaling in X and Y. In my application, the x and y scaling could be
different. How can that be handled ?

Thanks,
John


2009/9/3 Ramón Casero Cañas <ramon.casero at comlab.ox.ac.uk>

> John D wrote:
>
>> Hi all,
>>
>>  I am working on an application of registration of 2D images where I want
>> translation, rotation and scaling (but no shear). The affine
>> transformation
>> has the added degree of freedom for the shear that I want to avoid. Does
>> ITK
>> have a transform that uses only translation, rotation and scaling ?
>>
>
>
> Hi John,
>
> Yes, it is known as a similarity transform. See class
> Similarity2DTransform, documented in sec. 8.8.9 (p. 400) of the ITK User
> Guide, and in the doxygen documentation
>
> http://www.itk.org/Doxygen/html/classitk_1_1Similarity2DTransform.html
>
>
> Best regards,
>
> Ramon.
>
> --
> Ramón Casero Cañas, DPhil
>
> Computational Biology, Computing Laboratory
> University of Oxford
> Wolfson Building, Parks Rd
> Oxford OX1 3QD
>
> tlf     +44 (0) 1865 610807
> web     http://web.comlab.ox.ac.uk/people/Ramon.CaseroCanas
> photos  http://www.flickr.com/photos/rcasero/
>
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