#hbVPCanny

typedef enum {
    HB_VP_NORM_L1 = 1,
} hbVPCannyNorm;

Canny operator parameter.

• Member

  Enumeration Name	Description
  HB_VP_NORM_L1	norm L1 filter.

typedef struct {
    uint32_t     threshold1;
    uint32_t     threshold2;
    int8_t       kernelSize;
    int8_t       norm;
    int8_t       overlap;
} hbVPCannyParam;

Canny operator parameter.

• Member

  Member Name	Description
  threshold1	Low thresholds.
  threshold2	High thresholds.
  kernelSize	Filter kernel size, supported sizes are 3, 5, or 7.
  norm	Supports the types in hbVPCannyNorm.
  overlap	Reserved parameter.

int32_t hbVPCanny(hbUCPTaskHandle_t *taskHandle,
                  hbVPImage *dstImg,
                  hbVPImage const *srcImg,
                  hbVPCannyParam const *cannyParam);

The API for calling the Canny.

• Parameter
  • [out] taskHandle Task handles are responsible for the interaction of the operator with the UCP architecture.
  • [out] dstImg The output picture, type, format and size are the same as the input picture.
  • [in] srcImg The input picture, type supports U8C1, format supports Y.
  • [in] cannyParam Operator parameter.
• Return Value
  • Return 0 means the API was successfully executed, otherwise the execution failed.