Tensor Convert Bit-Depth

Detailed Description

Creates a bit-depth conversion node.

Convert tensor from a specific data type and fixed point position to another data type and fixed point position. The equation for the conversion is as follows:

\[ output = \frac{(\frac{input}{2^{input\_fixed\_point\_position}}-offset)}{norm}*2^{output\_fixed\_point\_position} \]

Where offset and norm are the input parameters in vx_float32. input_fixed_point_position and output_fixed_point_position are the fixed point positions of the input and output respectivly. Is case input or output tensors are of VX_TYPE_FLOAT32 fixed point position 0 is used.

Functions
vx_node VX_API_CALL	vxTensorConvertDepthNode (vx_graph graph, vx_tensor input, vx_enum policy, vx_scalar norm, vx_scalar offset, vx_tensor output)
	[Graph] Creates a bit-depth conversion node. More...
vx_status VX_API_CALL	vxuTensorConvertDepth (vx_context context, vx_tensor input, vx_enum policy, vx_scalar norm, vx_scalar offset, vx_tensor output)
	[Immediate] Performs a bit-depth conversion. More...

Function Documentation

vx_node VX_API_CALL vxTensorConvertDepthNode	(	vx_graph	graph,
		vx_tensor	input,
		vx_enum	policy,
		vx_scalar	norm,
		vx_scalar	offset,
		vx_tensor	output
	)

[Graph] Creates a bit-depth conversion node.

Parameters

[in]	graph	The reference to the graph.
[in]	input	The input tensor. Implementations must support input tensor data type VX_TYPE_INT16 with fixed_point_position 8, and tensor data types VX_TYPE_UINT8 and VX_TYPE_INT8, with fixed_point_position 0.
[in]	policy	A VX_TYPE_ENUM of the vx_convert_policy_e enumeration.
[in]	norm	A scalar containing a VX_TYPE_FLOAT32 of the normalization value.
[in]	offset	A scalar containing a VX_TYPE_FLOAT32 of the offset value subtracted before normalization.
[out]	output	The output tensor. Implementations must support input tensor data type VX_TYPE_INT16. with fixed_point_position 8. And VX_TYPE_UINT8 with fixed_point_position 0.

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 vxuTensorConvertDepth	(	vx_context	context,
		vx_tensor	input,
		vx_enum	policy,
		vx_scalar	norm,
		vx_scalar	offset,
		vx_tensor	output
	)

[Immediate] Performs a bit-depth conversion.

Parameters

[in]	context	The reference to the overall context.
[in]	input	The input tensor. Implementations must support input tensor data type VX_TYPE_INT16 with fixed_point_position 8, and tensor data types VX_TYPE_UINT8 and VX_TYPE_INT8, with fixed_point_position 0.
[in]	policy	A VX_TYPE_ENUM of the vx_convert_policy_e enumeration.
[in]	norm	A scalar containing a VX_TYPE_FLOAT32 of the normalization value.
[in]	offset	A scalar containing a VX_TYPE_FLOAT32 of the offset value subtracted before normalization.
[out]	output	The output tensor. Implementations must support input tensor data type VX_TYPE_INT16. with fixed_point_position 8. And VX_TYPE_UINT8 with fixed_point_position 0.

Returns

A vx_status_e enumeration.

Return values

VX_SUCCESS	Success
*	An error occurred. See vx_status_e.