Compute Library
 21.02
NEFillArrayKernel.cpp
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25 
27 #include "arm_compute/core/Error.h"
32 
33 using namespace arm_compute;
34 
36  : _input(nullptr), _output(nullptr), _threshold(0)
37 {
38 }
39 
41 {
44  ARM_COMPUTE_ERROR_ON(nullptr == output);
45 
46  _input = input;
47  _output = output;
48  _threshold = threshold;
49 
50  constexpr unsigned int num_elems_processed_per_iteration = 1;
51 
52  // Configure kernel window
53  Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration));
54  INEKernel::configure(win);
55 }
56 
58 {
59  return false;
60 }
61 
63 {
64  ARM_COMPUTE_UNUSED(info);
67 
68  Iterator input(_input, window);
69 
70  execute_window_loop(window, [&](const Coordinates & id)
71  {
72  const uint8_t value = *input.ptr();
73 
74  if(value >= _threshold)
75  {
76  KeyPoint p;
77  p.x = id.x();
78  p.y = id.y();
79  p.strength = value;
80  p.tracking_status = 1;
81  p.scale = 0.f;
82  p.orientation = 0.f;
83  p.error = 0.f;
84 
85  if(!_output->push_back(p))
86  {
87  return; //Overflowed: stop trying to add more points
88  }
89  }
90  },
91  input);
92 }
Window calculate_max_window(const ValidRegion &valid_region, const Steps &steps, bool skip_border, BorderSize border_size)
const Window & window() const
The maximum window the kernel can be executed on.
Definition: IKernel.cpp:28
float scale
Scale initialized to 0 by the corner detector.
Definition: Types.h:444
#define ARM_COMPUTE_ERROR_ON_TENSOR_NOT_2D(t)
Definition: Validate.h:856
int32_t x
X coordinates.
Definition: Types.h:441
float orientation
Orientation initialized to 0 by the corner detector.
Definition: Types.h:445
1 channel, 1 U8 per channel
int32_t tracking_status
Status initialized to 1 by the corner detector, set to 0 when the point is lost.
Definition: Types.h:446
Array of type T.
Definition: IArray.h:40
#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
Interface for Neon tensor.
Definition: ITensor.h:36
Copyright (c) 2017-2021 Arm Limited.
Keypoint type.
Definition: Types.h:439
float strength
Strength of the point.
Definition: Types.h:443
float error
Tracking error initialized to 0 by the corner detector.
Definition: Types.h:447
#define ARM_COMPUTE_UNUSED(...)
To avoid unused variables warnings.
Definition: Error.h:152
Class to describe a number of elements in each dimension.
Definition: Steps.h:40
Coordinates of an item.
Definition: Coordinates.h:37
virtual ITensorInfo * info() const =0
Interface to be implemented by the child class to return the tensor's metadata.
constexpr uint8_t * ptr() const
Return a pointer to the current pixel.
Definition: Helpers.inl:139
void configure(const IImage *input, uint8_t threshold, IKeyPointArray *output)
Initialise the kernel.
#define ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(k)
Definition: Validate.h:941
#define ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(t, c,...)
Definition: Validate.h:790
void run(const Window &window, const ThreadInfo &info) override
Execute the kernel on the passed window.
int32_t y
Y coordinates.
Definition: Types.h:442
ScaleKernelInfo info(interpolation_policy, default_border_mode, PixelValue(), sampling_policy, false)
Information about executing thread and CPU.
Definition: CPPTypes.h:235
bool is_parallelisable() const override
Indicates whether or not the kernel is parallelisable.
unsigned int num_elems_processed_per_iteration
void execute_window_loop(const Window &w, L &&lambda_function, Ts &&... iterators)
Iterate through the passed window, automatically adjusting the iterators and calling the lambda_funct...
Definition: Helpers.inl:77
bool push_back(const T &val)
Append the passed argument to the end of the array if there is room.
Definition: IArray.h:78
Iterator updated by execute_window_loop for each window element.
Definition: Helpers.h:46
SimpleTensor< T > threshold(const SimpleTensor< T > &src, T threshold, T false_value, T true_value, ThresholdType type, T upper)
Definition: Threshold.cpp:35
Describe a multidimensional execution window.
Definition: Window.h:39
NEFillArrayKernel()
Default contructor.
#define ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(f, s)
Definition: Validate.h:205