Accumulates a weighted value from an input image to an output image.
Weighted accumulation is computed by:
\[ accum(x,y) = (1 - \alpha)*accum(x,y) + \alpha*input(x,y) \]
Where \( 0 \le \alpha \le 1 \) Conceptually, the rounding for this is defined as:
\[ output(x,y)= uint8( (1 - \alpha) * float32( int32( output(x,y) ) ) + \alpha * float32( int32( input(x,y) ) ) ) \]
[Graph] Creates a weighted accumulate node.
- Parameters
-
[in] | graph | The reference to the graph. |
[in] | input | The input VX_DF_IMAGE_U8 image. |
[in] | alpha | The input VX_TYPE_FLOAT32 scalar value with a value in the range of \( 0.0 \le \alpha \le 1.0 \). |
[in,out] | accum | The VX_DF_IMAGE_U8 accumulation image. |
- Returns
vx_node
.
- Return values
-
vx_node | A node reference. Any possible errors preventing a successful creation should be checked using vxGetStatus |
[Immediate] Computes a weighted accumulation.
- Parameters
-
[in] | context | The reference to the overall context. |
[in] | input | The input VX_DF_IMAGE_U8 image. |
[in] | scale | A VX_TYPE_FLOAT32 type, the input value with the range \( 0.0 \le \alpha \le 1.0 \). |
[in,out] | accum | The VX_DF_IMAGE_U8 accumulation image. |
- Returns
- A
vx_status_e
enumeration.
- Return values
-