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RemapImage

Basic

Module: Calibration

Applies a precomputed image transform, defined by a spatial map object.

Applications

Fast (precomputed) image transformations, especially for view undistortion or object geometry correction (e.g. pos recognition of labels on cylindrical bottles).
Name Type Description
Input value
 inImage Image Input image
Input value
 inSpatialMap SpatialMap Definition of the transformation
Input value
 inMapRoi Region* Defines which elements of the spatial map are valid
Output value
 outImage Image Output image

Description

The operation applies an arbitrary spatial transformation to an image using a SpatialMap object. The input image has to be compatible with the given map. You can check if a map is compatible with an image using TestSpatialMapApplicability.

Hints

  • Connect the inImage input with an appropriate image source.
  • Connect the inSpatialMap input with a spatial map. This can be for example the result of the CreateSphereMap filter or similar.

Examples

Description of usage of this filter can be found in examples and tutorial: Globe Flattening, Bottle Flattening, Perspective Removal.

Remarks

Read more about how to handle images from camera in Camera Calibration article.

Hardware Acceleration

This operation is optimized for SSE4 technology for pixels of types: 1xUINT8, 3xUINT8.

This operation is optimized for AVX2 technology for pixels of type: 3xUINT8.

This operation is optimized for NEON technology for pixels of types: 1xUINT8, 3xUINT8.

This operation supports automatic parallelization for multicore and multiprocessor systems.

Errors

This filter can throw an exception to report error. Read how to deal with errors in Error Handling.

List of possible exceptions:

Error type Description
DomainError Incorrect SpatialMap on input in RemapImage.

Complexity Level

This filter is available on Basic Complexity Level.

See Also