Detailed Description

Computes the integral image of the input.

Each output pixel is the sum of the corresponding input pixel and all other pixels above and to the left of it [R00076].

\[ dst(x,y) = sum(x,y) \]

where, for x>=0 and y>=0

\[ sum(x,y) = src(x,y) + sum(x-1,y) + sum(x,y-1) - sum(x-1,y-1) \]

otherwise,

\[ sum(x,y) = 0 \]

The overflow policy used is VX_CONVERT_POLICY_WRAP [R00077].

Functions
vx_node VX_API_CALL	vxIntegralImageNode (vx_graph graph, vx_image input, vx_image output)
	[Graph] Creates an Integral Image Node. More...

Function Documentation

vx_node VX_API_CALL vxIntegralImageNode	(	vx_graph	graph,
		vx_image	input,
		vx_image	output
	)

[Graph] Creates an Integral Image Node.

Parameters

[in]	graph	The reference to the graph [R00217].
[in]	input	The input image in `VX_DF_IMAGE_U8` format [R00218].
[out]	output	The output image in `VX_DF_IMAGE_U32` format [R00219].

Return values

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