erode.cl File Reference

#include "helpers.h"

Go to the source code of this file.

Functions
__kernel void	erode (__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, __global uchar *dst_ptr, uint dst_stride_x, uint dst_step_x, uint dst_stride_y, uint dst_step_y, uint dst_offset_first_element_in_bytes)
	This function erodes an input image image. More...

Function Documentation

__kernel void erode	(	__global uchar *	src_ptr,
		uint	src_stride_x,
		uint	src_step_x,
		uint	src_stride_y,
		uint	src_step_y,
		uint	src_offset_first_element_in_bytes,
		__global uchar *	dst_ptr,
		uint	dst_stride_x,
		uint	dst_step_x,
		uint	dst_stride_y,
		uint	dst_step_y,
		uint	dst_offset_first_element_in_bytes
	)

This function erodes an input image image.

Parameters

[in]	src_ptr	Pointer to the source image. Supported data types: U8
[in]	src_stride_x	Stride of the source image in X dimension (in bytes)
[in]	src_step_x	src_stride_x * number of elements along X processed per workitem(in bytes)
[in]	src_stride_y	Stride of the source image in Y dimension (in bytes)
[in]	src_step_y	src_stride_y * number of elements along Y processed per workitem(in bytes)
[in]	src_offset_first_element_in_bytes	The offset of the first element in the source image
[out]	dst_ptr	Pointer to the destination image. Supported data types: U8
[in]	dst_stride_x	Stride of the destination image in X dimension (in bytes)
[in]	dst_step_x	dst_stride_x * number of elements along X processed per workitem(in bytes)
[in]	dst_stride_y	Stride of the destination image in Y dimension (in bytes)
[in]	dst_step_y	dst_stride_y * number of elements along Y processed per workitem(in bytes)
[in]	dst_offset_first_element_in_bytes	The offset of the first element in the destination image

Definition at line 41 of file erode.cl.

References CONVERT_TO_IMAGE_STRUCT, arm_compute::test::validation::dst, arm_compute::test::fixed_point_arithmetic::detail::min(), offset(), Image::ptr, and arm_compute::test::validation::src.

Referenced by ErodeValidationFixture< TensorType, AccessorType, FunctionType, T >::setup().

{
    Image src = CONVERT_TO_IMAGE_STRUCT(src);
    Image dst = CONVERT_TO_IMAGE_STRUCT(dst);

    uchar16 top    = vload16(0, offset(&src, -1, -1));
    uchar16 middle = vload16(0, offset(&src, -1, 0));
    uchar16 bottom = vload16(0, offset(&src, -1, 1));

    uchar16 tmp = min(top, min(middle, bottom));
    uchar8  out = min(tmp.s01234567, min(tmp.s12345678, tmp.s23456789));

    vstore8(out, 0, dst.ptr);
}