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RemapImage

Header:	AVL.h
Namespace:	avl
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).

Syntax

void avl::RemapImage
(
	const avl::Image& inImage,
	const avl::SpatialMap& inSpatialMap,
	atl::Optional<const avl::Region&> inMapRoi,
	avl::Image& outImage
)

Parameters

Name	Type	Default	Description
inImage	const Image&		Input image
inSpatialMap	const SpatialMap&		Definition of the transformation
inMapRoi	Optional<const Region&>	NIL	Defines which elements of the spatial map are valid
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 inSpatialMap input with a spatial map. This can be for example the result of the CreateSphereMap function or similar.

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

List of possible exceptions:

Error type	Description
DomainError	Incorrect SpatialMap on input in RemapImage.