Erase

group Erase

Unnamed Group

NVCVStatus cvcudaEraseSubmit(NVCVOperatorHandle handle, cudaStream_t stream, NVCVTensorHandle in, NVCVTensorHandle out, NVCVTensorHandle anchor, NVCVTensorHandle erasing, NVCVTensorHandle values, NVCVTensorHandle imgIdx, int8_t random, uint32_t seed)

Executes the erase operation on the given cuda stream. This operation does not wait for completion.

Limitations:

Input: Data Layout: [kNHWC, kHWC] Channels: [1, 2, 3, 4]

Data Type

Allowed

8bit Unsigned

Yes

8bit Signed

No

16bit Unsigned

Yes

16bit Signed

Yes

32bit Unsigned

No

32bit Signed

Yes

32bit Float

Yes

64bit Float

No

Output: Data Layout: [kNHWC, kHWC] Channels: [1, 2, 3, 4]

Data Type

Allowed

8bit Unsigned

Yes

8bit Signed

No

16bit Unsigned

Yes

16bit Signed

Yes

32bit Unsigned

No

32bit Signed

Yes

32bit Float

Yes

64bit Float

No

Input/Output dependency 

 Property      |  Input == Output
-------------- | -------------
 Data Layout   | Yes
 Data Type     | Yes
 Number        | Yes
 Channels      | Yes
 Width         | Yes
 Height        | Yes
anchor Tensor 
Must be 'N' (dim = 1) with N = number of erasing area.
Data Type must be 32bit Signed.
DataType must be TYPE_2S32.
erasing Tensor 
Must be 'N' (dim = 1) with N = number of erasing area.
Data Type must be 32bit Signed.
DataType must be TYPE_3S32.
imgIdx Tensor 
Must be 'N' (dim = 1) with N = number of erasing area.
Data Type must be 32bit Signed.
DataType must be TYPE_S32.
values Tensor 
Must be 'N' (dim = 1) with W = number of erasing area * 4.
Data Type must be 32bit Float.
DataType must be TYPE_F32.

Parameters:

  • handle – [in] Handle to the operator.

    • Must not be NULL.

  • stream – [in] Handle to a valid CUDA stream.

  • in – [in] input tensor / image batch.

  • out – [out] output tensor / image batch.

  • anchor – [in] an array of size num_erasing_area that gives the x coordinate and y coordinate of the top left point in the erasing areas.

  • erasing – [in] an array of size num_erasing_area that gives the widths of the erasing areas, the heights of the erasing areas and integers in range 0-15, each of whose bits indicates whether or not the corresponding channel need to be erased.

  • values – [in] an array of size num_erasing_area*4 that gives the filling value for each erase area.

  • imgIdx – [in] an array of size num_erasing_area that maps a erase area idx to img idx in the batch.

  • random – [in] an boolean for random op.

  • seed – [in] random seed for random filling erase area.

  • inplace – [in] for perform inplace op.

Return values:

  • NVCV_ERROR_INVALID_ARGUMENT – Some parameter is outside valid range.

  • NVCV_ERROR_INTERNAL – Internal error in the operator, invalid types passed in.

  • NVCV_SUCCESS – Operation executed successfully.

NVCVStatus cvcudaEraseVarShapeSubmit(NVCVOperatorHandle handle, cudaStream_t stream, NVCVImageBatchHandle in, NVCVImageBatchHandle out, NVCVTensorHandle anchor, NVCVTensorHandle erasing, NVCVTensorHandle values, NVCVTensorHandle imgIdx, int8_t random, uint32_t seed)

Functions

NVCVStatus cvcudaEraseCreate(NVCVOperatorHandle *handle, int32_t max_num_erasing_area)

Constructs and an instance of the erase operator.

Parameters:

  • handle – [out] Where the image instance handle will be written to.

    • Must not be NULL.

  • max_num_erasing_area – [in] the maximum number of areas that will be erased.

Return values:

  • NVCV_ERROR_INVALID_ARGUMENT – Handle is null.

  • NVCV_ERROR_OUT_OF_MEMORY – Not enough memory to create the operator.

  • NVCV_SUCCESS – Operation executed successfully.