1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
/*
* Copyright (c) 2017-2019 ARM Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "arm_compute/runtime/NEON/functions/NECannyEdge.h"
#include "arm_compute/core/Error.h"
#include "arm_compute/core/ITensor.h"
#include "arm_compute/core/NEON/kernels/NECannyEdgeKernel.h"
#include "arm_compute/core/NEON/kernels/NEFillBorderKernel.h"
#include "arm_compute/core/TensorInfo.h"
#include "arm_compute/core/Validate.h"
#include "arm_compute/runtime/NEON/NEScheduler.h"
#include "arm_compute/runtime/NEON/functions/NESobel3x3.h"
#include "arm_compute/runtime/NEON/functions/NESobel5x5.h"
#include "arm_compute/runtime/NEON/functions/NESobel7x7.h"
#include "arm_compute/runtime/TensorAllocator.h"
#include "support/ToolchainSupport.h"
#include <cstring>
#include <utility>
using namespace arm_compute;
NECannyEdge::NECannyEdge(std::shared_ptr<IMemoryManager> memory_manager) // NOLINT
: _memory_group(std::move(memory_manager)),
_sobel(),
_gradient(),
_non_max_suppr(),
_edge_trace(),
_border_mag_gradient(),
_border_edge_trace(),
_gx(),
_gy(),
_magnitude(),
_phase(),
_nonmax(),
_output(nullptr)
{
}
void NECannyEdge::configure(ITensor *input, ITensor *output, int32_t upper_thr, int32_t lower_thr, int32_t gradient_size, int32_t norm_type, BorderMode border_mode, uint8_t constant_border_value)
{
ARM_COMPUTE_ERROR_ON_NULLPTR(input, output);
ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8);
ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8);
ARM_COMPUTE_ERROR_ON((1 != norm_type) && (2 != norm_type));
ARM_COMPUTE_ERROR_ON((gradient_size != 3) && (gradient_size != 5) && (gradient_size != 7));
ARM_COMPUTE_ERROR_ON((lower_thr < 0) || (lower_thr >= upper_thr));
_output = output;
const TensorShape &shape = input->info()->tensor_shape();
TensorInfo gradient_info;
TensorInfo magnitude_info;
// Initialize images
if(gradient_size < 7)
{
gradient_info.init(shape, Format::S16);
magnitude_info.init(shape, Format::U16);
}
else
{
gradient_info.init(shape, Format::S32);
magnitude_info.init(shape, Format::U32);
}
_gx.allocator()->init(gradient_info);
_gy.allocator()->init(gradient_info);
_magnitude.allocator()->init(magnitude_info);
TensorInfo info(shape, Format::U8);
_phase.allocator()->init(info);
_nonmax.allocator()->init(info);
// Manage intermediate buffers
_memory_group.manage(&_gx);
_memory_group.manage(&_gy);
// Configure/Init sobelNxN
if(gradient_size == 3)
{
auto k = arm_compute::support::cpp14::make_unique<NESobel3x3>();
k->configure(input, &_gx, &_gy, border_mode, constant_border_value);
_sobel = std::move(k);
}
else if(gradient_size == 5)
{
auto k = arm_compute::support::cpp14::make_unique<NESobel5x5>();
k->configure(input, &_gx, &_gy, border_mode, constant_border_value);
_sobel = std::move(k);
}
else if(gradient_size == 7)
{
auto k = arm_compute::support::cpp14::make_unique<NESobel7x7>();
k->configure(input, &_gx, &_gy, border_mode, constant_border_value);
_sobel = std::move(k);
}
else
{
ARM_COMPUTE_ERROR("Gradient size %d not supported\n", gradient_size);
}
// Manage intermediate buffers
_memory_group.manage(&_magnitude);
_memory_group.manage(&_phase);
// Configure gradient
auto k = arm_compute::support::cpp14::make_unique<NEGradientKernel>();
k->configure(&_gx, &_gy, &_magnitude, &_phase, norm_type);
_gradient = std::move(k);
// Allocate intermediate tensors
_gx.allocator()->allocate();
_gy.allocator()->allocate();
// Manage intermediate buffers
_memory_group.manage(&_nonmax);
// Configure non-maxima suppression
_non_max_suppr.configure(&_magnitude, &_phase, &_nonmax, upper_thr, lower_thr, border_mode == BorderMode::UNDEFINED);
// Fill border around magnitude image as non-maxima suppression will access
// it. If border mode is undefined filling the border is a nop.
_border_mag_gradient.configure(&_magnitude, _non_max_suppr.border_size(), border_mode, constant_border_value);
// Allocate intermediate tensors
_phase.allocator()->allocate();
_magnitude.allocator()->allocate();
// Configure edge tracing
_edge_trace.configure(&_nonmax, output);
// Fill border with "No edge" to stop recursion in edge trace
_border_edge_trace.configure(&_nonmax, _edge_trace.border_size(), BorderMode::CONSTANT, static_cast<float>(0.f));
// Allocate intermediate tensors
_nonmax.allocator()->allocate();
}
void NECannyEdge::run()
{
ARM_COMPUTE_ERROR_ON_MSG(_sobel == nullptr, "Unconfigured function");
MemoryGroupResourceScope scope_mg(_memory_group);
// Run sobelNxN
_sobel->run();
// Run gradient
NEScheduler::get().schedule(_gradient.get(), Window::DimY);
// Fill border before non-maxima suppression. Nop for border mode undefined.
NEScheduler::get().schedule(&_border_mag_gradient, Window::DimZ);
// Run non-maxima suppression
NEScheduler::get().schedule(&_non_max_suppr, Window::DimY);
ARM_COMPUTE_ERROR_ON(_output->buffer() == nullptr);
std::fill_n(_output->buffer(), _output->info()->total_size(), 0);
// Fill border before edge trace
NEScheduler::get().schedule(&_border_edge_trace, Window::DimZ);
// Run edge tracing
NEScheduler::get().schedule(&_edge_trace, Window::DimY);
}
|
