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What are spatial Transformations? Are Affine transformations also part of spatial transformations?

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    I tried googling, but I couldn't find any site which actually explained what Spatial transformations are. For affine transformations, it was pretty clear here. http://en.wikipedia.org/wiki/Affine_transformation2012-11-21

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Yes, they are. Spatial transformations as used in signal/image processing you mean?

Yes affine transformations are a special case of that. Top result here

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    Ok, cool well, I hope this helped. Yes the definitions are fairly general, that's a good thing, even though it makes it hard to get into at first :). There are some worked examples later on.2012-11-21