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
|
// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2014 Benoit Steiner <benoit.steiner.goog@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include "main.h"
#include <Eigen/CXX11/Tensor>
using Eigen::Tensor;
static void test_simple_patch()
{
Tensor<float, 4> tensor(2,3,5,7);
tensor.setRandom();
array<ptrdiff_t, 4> patch_dims;
patch_dims[0] = 1;
patch_dims[1] = 1;
patch_dims[2] = 1;
patch_dims[3] = 1;
Tensor<float, 5> no_patch;
no_patch = tensor.extract_patches(patch_dims);
VERIFY_IS_EQUAL(no_patch.dimension(0), 1);
VERIFY_IS_EQUAL(no_patch.dimension(1), 1);
VERIFY_IS_EQUAL(no_patch.dimension(2), 1);
VERIFY_IS_EQUAL(no_patch.dimension(3), 1);
VERIFY_IS_EQUAL(no_patch.dimension(4), tensor.size());
for (int i = 0; i < tensor.size(); ++i) {
VERIFY_IS_EQUAL(tensor.data()[i], no_patch.data()[i]);
}
patch_dims[0] = 1;
patch_dims[1] = 2;
patch_dims[2] = 2;
patch_dims[3] = 1;
Tensor<float, 5> twod_patch;
twod_patch = tensor.extract_patches(patch_dims);
VERIFY_IS_EQUAL(twod_patch.dimension(0), 1);
VERIFY_IS_EQUAL(twod_patch.dimension(1), 2);
VERIFY_IS_EQUAL(twod_patch.dimension(2), 2);
VERIFY_IS_EQUAL(twod_patch.dimension(3), 1);
VERIFY_IS_EQUAL(twod_patch.dimension(4), 2*2*4*7);
for (int i = 0; i < 2; ++i) {
for (int j = 0; j < 2; ++j) {
for (int k = 0; k < 4; ++k) {
for (int l = 0; l < 7; ++l) {
int patch_loc = i + 2 * (j + 2 * (k + 4 * l));
for (int x = 0; x < 2; ++x) {
for (int y = 0; y < 2; ++y) {
VERIFY_IS_EQUAL(tensor(i,j+x,k+y,l), twod_patch(0,x,y,0,patch_loc));
}
}
}
}
}
}
patch_dims[0] = 1;
patch_dims[1] = 2;
patch_dims[2] = 3;
patch_dims[3] = 5;
Tensor<float, 5> threed_patch;
threed_patch = tensor.extract_patches(patch_dims);
VERIFY_IS_EQUAL(threed_patch.dimension(0), 1);
VERIFY_IS_EQUAL(threed_patch.dimension(1), 2);
VERIFY_IS_EQUAL(threed_patch.dimension(2), 3);
VERIFY_IS_EQUAL(threed_patch.dimension(3), 5);
VERIFY_IS_EQUAL(threed_patch.dimension(4), 2*2*3*3);
for (int i = 0; i < 2; ++i) {
for (int j = 0; j < 2; ++j) {
for (int k = 0; k < 3; ++k) {
for (int l = 0; l < 3; ++l) {
int patch_loc = i + 2 * (j + 2 * (k + 3 * l));
for (int x = 0; x < 2; ++x) {
for (int y = 0; y < 3; ++y) {
for (int z = 0; z < 5; ++z) {
VERIFY_IS_EQUAL(tensor(i,j+x,k+y,l+z), threed_patch(0,x,y,z,patch_loc));
}
}
}
}
}
}
}
}
void test_cxx11_tensor_patch()
{
CALL_SUBTEST(test_simple_patch());
// CALL_SUBTEST(test_expr_shuffling());
}
|
