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ImageInversePolarTransform
Transforms an image from polar or log-polar space to euclidean space.
| Name | Type | Description | |
|---|---|---|---|
 |
inImage | Image | Input image |
|
inCenter | Point2D | Center of the coordinate system in output image |
|
inInputSpaceType | PolarSpaceType | Method of transformation |
|
inInterpolation | PolarInterpolationMethod | Method of underlying interpolation |
 |
outImage | Image | Output image |
Description
Reverses ImagePolarTransform using the following transformation:
\[ src(x,y) = dst(\rho, \phi) \]where
\[ \rho = m \sqrt{x^2 + y^2} , \phi = \arctan(\frac{y}{x}), \]for linear-polar space, and
\[ \rho = k \log{\sqrt{x^2+y^2} }, \phi = \arctan(\frac{y}{x}), \]for log-polar space, which emulates the human "foveal vision".
Parameters \(m\) and \(k\) are chosen so that entire source image could fit into output image.
Transformation does not change image dimensions.
Examples
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Original image, ImagePolarTransform and ImageInversePolarTransform performed on the sample image with inCenter = (150,150) for log-polar space type.
Complexity Level
This filter is available on Basic Complexity Level.
