Canny Edge Detector

OpenVX Function Description

• Provides a Canny edge detector kernel.

OpenVX Function Reference Page

• https://www.khronos.org/registry/vx/specs/1.1/html/d7/d71/group__group__vision__function__canny.html

VXLIB API

• VXLIB_sobel_3x3_i8u_o16s_o16s : Input image is U8 format, output gradients are S16 format
• VXLIB_sobel_5x5_i8u_o16s_o16s : Input image is U8 format, output gradients are S16 format
• VXLIB_sobel_7x7_i8u_o16s_o16s : Input image is U8 format, output gradients are S16 format
• VXLIB_normL1_i16s_i16s_o16u : Input gradients are S16 format, and output magnitude is U16 format
• VXLIB_normL2_i16s_i16s_o16u : Input gradients are S16 format, and output magnitude is U16 format
• VXLIB_cannyNMS_i16s_i16s_i16u_o8u : Input gradients are S16 format, input magnitude is U16 format, and output edgeMap is U8 format
• VXLIB_doubleThreshold_i16u_i8u : Input magnitude is U16 format, input/output edgeMap is U8 format, and output edgeList is U32 format
• VXLIB_edgeTracing_i8u : Input/output edgeMap is U8 format, and input edgeList is U32 format
• VXLIB_thresholdBinary_i8u_o8u : Input and output images are U8 format