Steve on Image Processing with MATLAB
Image processing concepts, algorithms, and MATLAB

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Spatial transformations

作者 Steve Eddins, January 24, 2006

8 次查看（过去 30 天） | 0 个赞 | 10 个评论

Section 5.11 of Digital Image Processing Using MATLAB covers spatial transformations. I'm interested in expanding this material to a full chapter. I'd like to use this blog to explore these topics and get your feedback about them.

Here's a partial list of concepts to cover:

Terminology
Types of spatial transformations (affine, for example) and their properties
Forward mapping versus inverse mapping
Interpolation
Aliasing and anti-aliasing

I'd also like to cover interesting features and design issues associated with the Image Processing Toolbox functions imtransform and tformarray, such as:

Defining the spatial coordinate systems associated with the input and output images
Multidimensional operation
Options for handling out-of-bounds pixels
What is findbounds and how does imtransform use it?

Finally, there are common questions and points of confusion, such as why applying a translation using imtransform appears not to do anything.

What am I leaving out? Please tell me what you'd like to hear about.

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类别:: Spatial transforms

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