Reconstruction from a Laplacian Image Pyramid

Detailed Description

Reconstructs the original image from a Laplacian Image Pyramid.

This vision function reconstructs the image of the highest possible resolution from a Laplacian pyramid. The input image is added to the last level of the Laplacian pyramid \(L_{n-2}\), the resulting image is upsampled to the resolution of the next pyramid level:

\[ I_{n-2} = upsample(input + L_{n-1}) \]

Correspondingly, for each pyramid level \(i\), except for the first \(i=0\) and the last \(i=n-1\):

\[ I_{i-1} = upsample(I_i + L_i) \]

Finally, the output image is:

\[ output = I_0 + L_0 \]

Functions
vx_node VX_API_CALL	vxLaplacianReconstructNode (vx_graph graph, vx_pyramid laplacian, vx_image input, vx_image output)
	[Graph] Reconstructs an image from a Laplacian Image pyramid. More...
vx_status VX_API_CALL	vxuLaplacianReconstruct (vx_context context, vx_pyramid laplacian, vx_image input, vx_image output)
	[Immediate] Reconstructs an image from a Laplacian Image pyramid. More...

Function Documentation

vx_node VX_API_CALL vxLaplacianReconstructNode	(	vx_graph	graph,
		vx_pyramid	laplacian,
		vx_image	input,
		vx_image	output
	)

[Graph] Reconstructs an image from a Laplacian Image pyramid.

Parameters

[in]	graph	The reference to the graph.
[in]	laplacian	The Laplacian pyramid with VX_DF_IMAGE_S16 format.
[in]	input	The lowest resolution image of type VX_DF_IMAGE_S16 for the Laplacian pyramid
[out]	output	The output image of type VX_DF_IMAGE_U8 with the highest possible resolution reconstructed from the Laplacian pyramid.

See Also

Object: Pyramid

Returns

vx_node.

Return values

0	Node could not be created.
*	Node handle.

vx_status VX_API_CALL vxuLaplacianReconstruct	(	vx_context	context,
		vx_pyramid	laplacian,
		vx_image	input,
		vx_image	output
	)

[Immediate] Reconstructs an image from a Laplacian Image pyramid.

Parameters

[in]	context	The reference to the overall context.
[in]	laplacian	The Laplacian pyramid with VX_DF_IMAGE_S16 format.
[in]	input	The lowest resolution image of type VX_DF_IMAGE_S16 for the Laplacian pyramid
[out]	output	The output image of type VX_DF_IMAGE_U8 with the highest possible resolution reconstructed from the Laplacian pyramid.

See Also

Object: Pyramid

Returns

A vx_status enumeration.

Return values

VX_SUCCESS	Success.
*	An error occured. See vx_status_e