Compute Library
 21.08
MinMaxLocation.cpp
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24 #include "MinMaxLocation.h"
25 
26 namespace arm_compute
27 {
28 namespace test
29 {
30 namespace validation
31 {
32 namespace reference
33 {
34 template <typename T>
35 void compute_min_max(const SimpleTensor<T> &src, T &min, T &max)
36 {
37  // Set min and max to first pixel
38  min = src[0];
39  max = src[0];
40 
42 
43  // Look for min and max values
44  for(int i = 1; i < src.num_elements(); ++i)
45  {
46  if(src[i] < min)
47  {
48  min = src[i];
49  }
50  if(src[i] > max)
51  {
52  max = src[i];
53  }
54  }
55 }
56 
57 template <typename T>
59 {
61 
62  const size_t width = src.shape().x();
63 
64  compute_min_max<T>(src, dst.min, dst.max);
65 
66  Coordinates2D coord{ 0, 0 };
67 
68  for(int i = 0; i < src.num_elements(); ++i)
69  {
70  coord.x = static_cast<int32_t>(i % width);
71  coord.y = static_cast<int32_t>(i / width);
72 
73  if(src[i] == dst.min)
74  {
75  dst.min_loc.push_back(coord);
76  }
77  if(src[i] == dst.max)
78  {
79  dst.max_loc.push_back(coord);
80  }
81  }
82 
83  return dst;
84 }
85 
89 } // namespace reference
90 } // namespace validation
91 } // namespace test
92 } // namespace arm_compute
void compute_min_max(const SimpleTensor< T > &src, T &min, T &max)
MinMaxType max
Max value.
Definition: Types.h:38
std::vector< Coordinates2D > min_loc
Min value location.
Definition: Types.h:39
#define ARM_COMPUTE_ERROR_ON(cond)
If the condition is true then an error message is printed and an exception thrown.
Definition: Error.h:466
TensorShape shape() const override
Shape of the tensor.
Definition: SimpleTensor.h:320
SimpleTensor< float > src
Definition: DFT.cpp:155
Copyright (c) 2017-2021 Arm Limited.
int32_t x
X coordinates.
Definition: Types.h:415
MinMaxLocationValues< T > min_max_location(const SimpleTensor< T > &src)
Min and max values and locations.
Definition: Types.h:35
Simple tensor object that stores elements in a consecutive chunk of memory.
Definition: SimpleTensor.h:58
Coordinate type.
Definition: Types.h:413
int num_elements() const override
Number of elements of the tensor.
Definition: SimpleTensor.h:406
MinMaxType min
Min value.
Definition: Types.h:37
std::vector< Coordinates2D > max_loc
Max value location.
Definition: Types.h:40