24.02.1
NonMaximaSuppression.cpp
Go to the documentation of this file.
1
/*
2
* Copyright (c) 2017-2019 Arm Limited.
3
*
4
* SPDX-License-Identifier: MIT
5
*
6
* Permission is hereby granted, free of charge, to any person obtaining a copy
7
* of this software and associated documentation files (the "Software"), to
8
* deal in the Software without restriction, including without limitation the
9
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10
* sell copies of the Software, and to permit persons to whom the Software is
11
* furnished to do so, subject to the following conditions:
12
*
13
* The above copyright notice and this permission notice shall be included in all
14
* copies or substantial portions of the Software.
15
*
16
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22
* SOFTWARE.
23
*/
24
#include "
NonMaximaSuppression.h
"
25
26
#include "
Utils.h
"
27
#include "
tests/validation/Helpers.h
"
28
29
namespace
arm_compute
30
{
31
namespace
test
32
{
33
namespace
validation
34
{
35
namespace
reference
36
{
37
template
<
typename
T>
38
SimpleTensor<T>
non_maxima_suppression
(
const
SimpleTensor<T>
&
src
,
BorderMode
border_mode, T constant_border_value)
39
{
40
constexpr
int
block_size = 3;
41
SimpleTensor<T>
dst
(
src
.shape(),
src
.data_type(),
src
.num_channels());
42
ValidRegion
valid_region
=
shape_to_valid_region
(
src
.shape(), border_mode ==
BorderMode::UNDEFINED
,
BorderSize
(block_size / 2));
43
44
const
uint32_t num_elements =
src
.num_elements();
45
for
(uint32_t i = 0; i < num_elements; ++i)
46
{
47
Coordinates
coord =
index2coord
(
src
.shape(), i);
48
int
x = coord.
x
();
49
int
y = coord.
y
();
50
51
if
(!
is_in_valid_region
(
valid_region
, coord))
52
{
53
continue
;
54
}
55
56
if
(
src
[i] >=
tensor_elem_at
(
src
,
Coordinates
(x - 1, y - 1), border_mode, constant_border_value) &&
src
[i] >=
tensor_elem_at
(
src
,
Coordinates
(x, y - 1), border_mode, constant_border_value)
57
&&
src
[i] >=
tensor_elem_at
(
src
,
Coordinates
(x + 1, y - 1), border_mode, constant_border_value) &&
src
[i] >=
tensor_elem_at
(
src
,
Coordinates
(x - 1, y), border_mode, constant_border_value)
58
&&
src
[i] >
tensor_elem_at
(
src
,
Coordinates
(x + 1, y), border_mode, constant_border_value) &&
src
[i] >
tensor_elem_at
(
src
,
Coordinates
(x - 1, y + 1), border_mode, constant_border_value)
59
&&
src
[i] >
tensor_elem_at
(
src
,
Coordinates
(x, y + 1), border_mode, constant_border_value) &&
src
[i] >
tensor_elem_at
(
src
,
Coordinates
(x + 1, y + 1), border_mode, constant_border_value))
60
{
61
dst
[i] =
src
[i];
62
}
63
else
64
{
65
dst
[i] = T(0);
66
}
67
}
68
69
return
dst
;
70
}
71
72
template
SimpleTensor<float>
non_maxima_suppression
(
const
SimpleTensor<float>
&
src
,
BorderMode
border_mode,
float
constant_border_value);
73
template
SimpleTensor<uint8_t>
non_maxima_suppression
(
const
SimpleTensor<uint8_t>
&
src
,
BorderMode
border_mode, uint8_t constant_border_value);
74
}
// namespace reference
75
}
// namespace validation
76
}
// namespace test
77
}
// namespace arm_compute
arm_compute::test::validation::tensor_elem_at
T tensor_elem_at(const SimpleTensor< T > &src, Coordinates coord, BorderMode border_mode, T constant_border_value)
Definition:
Utils.h:63
arm_compute::test::validation::src
SimpleTensor< float > src
Definition:
DFT.cpp:155
arm_compute::BorderSize
Container for 2D border size.
Definition:
Types.h:239
arm_compute::BorderMode::UNDEFINED
@ UNDEFINED
Borders are left undefined.
NonMaximaSuppression.h
arm_compute::test::validation::dst
auto dst
Definition:
DFT.cpp:170
Utils.h
arm_compute::test::is_in_valid_region
bool is_in_valid_region(const ValidRegion &valid_region, Coordinates coord)
Check if a coordinate is within a valid region.
Definition:
Utils.h:406
arm_compute::test::validation::valid_region
const ValidRegion valid_region
Definition:
Scale.cpp:214
arm_compute::test::index2coord
Coordinates index2coord(const TensorShape &shape, int index)
Convert a linear index into n-dimensional coordinates.
Definition:
Utils.h:359
arm_compute::ValidRegion
Container for valid region of a window.
Definition:
Types.h:143
arm_compute::Dimensions::x
T x() const
Alias to access the size of the first dimension.
Definition:
Dimensions.h:86
arm_compute::Coordinates
Coordinates of an item.
Definition:
Coordinates.h:37
arm_compute::test::SimpleTensor
Simple tensor object that stores elements in a consecutive chunk of memory.
Definition:
SimpleTensor.h:58
arm_compute::test::validation::reference::non_maxima_suppression
SimpleTensor< T > non_maxima_suppression(const SimpleTensor< T > &src, BorderMode border_mode, T constant_border_value)
Definition:
NonMaximaSuppression.cpp:38
arm_compute
Copyright (c) 2017-2024 Arm Limited.
Definition:
introduction.dox:24
arm_compute::BorderMode
BorderMode
Methods available to handle borders.
Definition:
Types.h:231
Helpers.h
arm_compute::Dimensions::y
T y() const
Alias to access the size of the second dimension.
Definition:
Dimensions.h:91
arm_compute::test::shape_to_valid_region
ValidRegion shape_to_valid_region(const TensorShape &a_shape, bool border_undefined=false, BorderSize border_size=BorderSize(0))
Create a valid region based on tensor shape, border mode and border size.
Definition:
Utils.h:219
tests
validation
reference
NonMaximaSuppression.cpp
Generated on Mon Mar 18 2024 11:32:06 for Compute Library by
1.8.17