Histogram
- group NVCV_C_ALGORITHM__HISTOGRAM
Functions
-
NVCVStatus cvcudaHistogramCreate(NVCVOperatorHandle *handle)
Constructs and an instance of the Histogram operator.
- Parameters:
handle – [out] Where the image instance handle will be written to.
Must not be NULL.
- 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.
-
NVCVStatus cvcudaHistogramSubmit(NVCVOperatorHandle handle, cudaStream_t stream, NVCVTensorHandle in, NVCVTensorHandle mask, NVCVTensorHandle histogram)
Executes the Histogram operation on the given cuda stream. This operation does not wait for completion.
Limitations:
Input: Data Layout: [kNHWC, kHWC] Channels: [1]
Data Type
Allowed
8bit Unsigned
Yes
8bit Signed
No
16bit Unsigned
No
16bit Signed
No
32bit Unsigned
No
32bit Signed
No
32bit Float
No
64bit Float
No
Output: Data Layout: [kHWC] Channels: [1]
Data Type
Allowed
8bit Unsigned
No
8bit Signed
No
16bit Unsigned
No
16bit Signed
No
32bit Unsigned
Yes
32bit Signed
Yes
32bit Float
No
64bit Float
No
Input/Output dependency
Property | Input == Output -------------- | ------------- Data Layout | N/A Data Type | N/A Number | N/A Channels | N/A Width | N/A Height | N/A
- Parameters:
handle – [in] Handle to the operator.
Must not be NULL.
stream – [in] Handle to a valid CUDA stream.
in – [in] input tensor.
histogram – [out] output histogram, with width of 256 and a height = N on input tensor (1 if HWC tensor).
mask – [in] mask tensor, with shape the same as input tensor any value != 0 will be counted in the histogram.
- 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 cvcudaHistogramCreate(NVCVOperatorHandle *handle)