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Autonomous SystemsMultidimensional interpolation with integer input
A customer asked me last week how to do multidimensional interpolation with integer inputs. The MATLAB functioninterpnsupports only double- and single-precision inputs.
It's possible to do this using a little-known Image Processing Toolbox function calledtformarray. Buttformarrayis a general spatial transformation engine with a complicated syntax. It isn't easy to figure out how to use it for interpolation, so I decided to write a wrapper M-file to do it.
The functioniminterpn, which has a syntax similar tointerpn, is now available on theMATLAB Central File Exchange. I hope some of you find it useful.
- Category:
- Spatial transforms
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