TableLookup

Detailed Description

Implements the Table Lookup Image Kernel. The output image dimensions should be the same as the dimensions of the input image.

This kernel uses each pixel in an image to index into a LUT and put the indexed LUT value into the output image. The formats supported are VX_DF_IMAGE_U8 and VX_DF_IMAGE_S16.

Functions
vx_node VX_API_CALL	vxTableLookupNode (vx_graph graph, vx_image input, vx_lut lut, vx_image output)
	[Graph] Creates a Table Lookup node. If a value from the input image is not present in the lookup table, the result is undefined. More...
vx_status VX_API_CALL	vxuTableLookup (vx_context context, vx_image input, vx_lut lut, vx_image output)
	[Immediate] Processes the image through the LUT. More...

Function Documentation

vx_node VX_API_CALL vxTableLookupNode	(	vx_graph	graph,
		vx_image	input,
		vx_lut	lut,
		vx_image	output
	)

[Graph] Creates a Table Lookup node. If a value from the input image is not present in the lookup table, the result is undefined.

Parameters

[in]	graph	The reference to the graph.
[in]	input	The input image in VX_DF_IMAGE_U8 or VX_DF_IMAGE_S16.
[in]	lut	The LUT which is of type VX_TYPE_UINT8 if input image is VX_DF_IMAGE_U8 or VX_TYPE_INT16 if input image is VX_DF_IMAGE_S16.
[out]	output	The output image of the same type and size as the input image.

Returns

vx_node.

Return values

vx_node

A node reference. Any possible errors preventing a successful creation should be checked using vxGetStatus.

vx_status VX_API_CALL vxuTableLookup	(	vx_context	context,
		vx_image	input,
		vx_lut	lut,
		vx_image	output
	)

[Immediate] Processes the image through the LUT.

Parameters

[in]	context	The reference to the overall context.
[in]	input	The input image in VX_DF_IMAGE_U8 or VX_DF_IMAGE_S16.
[in]	lut	The LUT which is of type VX_TYPE_UINT8 if input image is VX_DF_IMAGE_U8 or VX_TYPE_INT16 if input image is VX_DF_IMAGE_S16.
[out]	output	The output image of the same type as the input image.

Returns

A vx_status_e enumeration.

Return values

VX_SUCCESS	Success
*	An error occurred. See vx_status_e.