Remove Computer Vision generic interfaces and types

Removes:
    - reference validation routines
    - CV related types and structures
    - CV related interfaces

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: I3a203da12d9b04c154059b190aeba18a611149a9
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5340
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

3 files changed, 0 insertions, 359 deletions

diff --git a/src/core/CPP/kernels/CPPCornerCandidatesKernel.cpp b/src/core/CPP/kernels/CPPCornerCandidatesKernel.cpp
deleted file mode 100644
index a134e3e5c1..0000000000
--- a/src/core/CPP/kernels/CPPCornerCandidatesKernel.cpp
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Copyright (c) 2017-2020 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/core/CPP/kernels/CPPCornerCandidatesKernel.h"
-
-#include "arm_compute/core/Helpers.h"
-#include "arm_compute/core/TensorInfo.h"
-#include "src/core/helpers/WindowHelpers.h"
-
-using namespace arm_compute;
-
-namespace
-{
-inline void check_corner(float x, float y, float strength, InternalKeypoint *output, int32_t *num_corner_candidates, arm_compute::Mutex *corner_candidates_mutex)
-{
-    if(strength != 0.0f)
-    {
-        /* Set index and update num_corner_candidate */
-        arm_compute::unique_lock<arm_compute::Mutex> lock(*corner_candidates_mutex);
-
-        const int32_t idx = *num_corner_candidates;
-
-        *num_corner_candidates += 1;
-
-        lock.unlock();
-
-        /* Add keypoint */
-        output[idx] = std::make_tuple(x, y, strength);
-    }
-}
-
-inline void corner_candidates(const float *__restrict input, InternalKeypoint *__restrict output, int32_t x, int32_t y, int32_t *num_corner_candidates, arm_compute::Mutex *corner_candidates_mutex)
-{
-    check_corner(x, y, *input, output, num_corner_candidates, corner_candidates_mutex);
-}
-} // namespace
-
-bool keypoint_compare(const InternalKeypoint &lhs, const InternalKeypoint &rhs)
-{
-    return std::get<2>(lhs) > std::get<2>(rhs);
-}
-
-CPPCornerCandidatesKernel::CPPCornerCandidatesKernel()
-    : _num_corner_candidates(nullptr), _corner_candidates_mutex(), _input(nullptr), _output(nullptr)
-{
-}
-
-void CPPCornerCandidatesKernel::configure(const IImage *input, InternalKeypoint *output, int32_t *num_corner_candidates)
-{
-    ARM_COMPUTE_ERROR_ON_TENSOR_NOT_2D(input);
-    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::F32);
-    ARM_COMPUTE_ERROR_ON(nullptr == output);
-    ARM_COMPUTE_ERROR_ON(nullptr == num_corner_candidates);
-    ARM_COMPUTE_ERROR_ON(*num_corner_candidates != 0);
-
-    _input                 = input;
-    _output                = output;
-    _num_corner_candidates = num_corner_candidates;
-
-    const unsigned int num_elems_processed_per_iteration = 1;
-
-    // Configure kernel window
-    Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration));
-
-    update_window_and_padding(win, AccessWindowHorizontal(input->info(), 0, num_elems_processed_per_iteration));
-
-    ICPPKernel::configure(win);
-}
-
-void CPPCornerCandidatesKernel::run(const Window &window, const ThreadInfo &info)
-{
-    ARM_COMPUTE_UNUSED(info);
-    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
-    ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICPPKernel::window(), window);
-    Iterator input(_input, window);
-
-    execute_window_loop(window, [&](const Coordinates & id)
-    {
-        corner_candidates(reinterpret_cast<float *>(input.ptr()), &_output[0], id.x(), id.y(), _num_corner_candidates, &_corner_candidates_mutex);
-    },
-    input);
-}
diff --git a/src/core/CPP/kernels/CPPDetectionWindowNonMaximaSuppressionKernel.cpp b/src/core/CPP/kernels/CPPDetectionWindowNonMaximaSuppressionKernel.cpp
deleted file mode 100644
index 3166faba48..0000000000
--- a/src/core/CPP/kernels/CPPDetectionWindowNonMaximaSuppressionKernel.cpp
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (c) 2017-2020 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/core/CPP/kernels/CPPDetectionWindowNonMaximaSuppressionKernel.h"
-
-#include "arm_compute/core/Helpers.h"
-
-#include <algorithm>
-#include <cmath>
-
-using namespace arm_compute;
-
-namespace
-{
-bool compare_detection_window(const DetectionWindow &lhs, const DetectionWindow &rhs)
-{
-    if(lhs.idx_class < rhs.idx_class)
-    {
-        return true;
-    }
-    if(rhs.idx_class < lhs.idx_class)
-    {
-        return false;
-    }
-
-    // idx_classes are equal so compare by score
-    if(lhs.score > rhs.score)
-    {
-        return true;
-    }
-    if(rhs.score > lhs.score)
-    {
-        return false;
-    }
-
-    return false;
-}
-} // namespace
-
-CPPDetectionWindowNonMaximaSuppressionKernel::CPPDetectionWindowNonMaximaSuppressionKernel()
-    : _input_output(nullptr), _min_distance(0.0f)
-{
-}
-
-bool CPPDetectionWindowNonMaximaSuppressionKernel::is_parallelisable() const
-{
-    return false;
-}
-
-void CPPDetectionWindowNonMaximaSuppressionKernel::configure(IDetectionWindowArray *input_output, float min_distance)
-{
-    ARM_COMPUTE_ERROR_ON(nullptr == input_output);
-
-    _input_output = input_output;
-    _min_distance = min_distance;
-
-    IKernel::configure(Window()); // Default 1 iteration window
-}
-
-void CPPDetectionWindowNonMaximaSuppressionKernel::run(const Window &window, const ThreadInfo &info)
-{
-    ARM_COMPUTE_UNUSED(info);
-    ARM_COMPUTE_UNUSED(window);
-    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
-    ARM_COMPUTE_ERROR_ON_MISMATCHING_WINDOWS(IKernel::window(), window);
-    ARM_COMPUTE_ERROR_ON(_input_output->buffer() == nullptr);
-
-    const size_t num_candidates = _input_output->num_values();
-    size_t       num_detections = 0;
-
-    // Sort list of candidates by idx_class and then score
-    std::sort(_input_output->buffer(), _input_output->buffer() + num_candidates, compare_detection_window);
-
-    const float min_distance_pow2 = _min_distance * _min_distance;
-
-    // Euclidean distance
-    for(size_t i = 0; i < num_candidates; ++i)
-    {
-        if(0.0f != _input_output->at(i).score)
-        {
-            DetectionWindow cur;
-            cur.x         = _input_output->at(i).x;
-            cur.y         = _input_output->at(i).y;
-            cur.width     = _input_output->at(i).width;
-            cur.height    = _input_output->at(i).height;
-            cur.idx_class = _input_output->at(i).idx_class;
-            cur.score     = _input_output->at(i).score;
-
-            // Store window
-            _input_output->at(num_detections) = cur;
-
-            ++num_detections;
-
-            const float xc = cur.x + cur.width * 0.5f;
-            const float yc = cur.y + cur.height * 0.5f;
-
-            for(size_t k = i + 1; k < (num_candidates) && (cur.idx_class == _input_output->at(k).idx_class); ++k)
-            {
-                const float xn = _input_output->at(k).x + _input_output->at(k).width * 0.5f;
-                const float yn = _input_output->at(k).y + _input_output->at(k).height * 0.5f;
-
-                const float dx = std::fabs(xn - xc);
-                const float dy = std::fabs(yn - yc);
-
-                if(dx < _min_distance && dy < _min_distance)
-                {
-                    const float d = dx * dx + dy * dy;
-
-                    if(d < min_distance_pow2)
-                    {
-                        // Invalidate detection window
-                        _input_output->at(k).score = 0.0f;
-                    }
-                }
-            }
-        }
-    }
-
-    _input_output->resize(num_detections);
-}
diff --git a/src/core/CPP/kernels/CPPSortEuclideanDistanceKernel.cpp b/src/core/CPP/kernels/CPPSortEuclideanDistanceKernel.cpp
deleted file mode 100644
index 603b05ea8a..0000000000
--- a/src/core/CPP/kernels/CPPSortEuclideanDistanceKernel.cpp
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright (c) 2017 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/core/CPP/kernels/CPPSortEuclideanDistanceKernel.h"
-
-#include "arm_compute/core/Coordinates.h"
-#include "arm_compute/core/Error.h"
-#include "arm_compute/core/Helpers.h"
-#include "arm_compute/core/TensorInfo.h"
-#include "arm_compute/core/Types.h"
-#include "arm_compute/core/Utils.h"
-#include "arm_compute/core/Validate.h"
-#include "arm_compute/core/Window.h"
-
-#include <cmath>
-
-using namespace arm_compute;
-
-namespace
-{
-bool keypoint_compare(const InternalKeypoint &lhs, const InternalKeypoint &rhs)
-{
-    return std::get<2>(lhs) > std::get<2>(rhs);
-}
-} // namespace
-
-CPPSortEuclideanDistanceKernel::CPPSortEuclideanDistanceKernel()
-    : _num_corner_candidates(), _min_distance(0.0f), _in_out(nullptr), _output(nullptr)
-{
-}
-
-void CPPSortEuclideanDistanceKernel::configure(InternalKeypoint *in_out, IKeyPointArray *output, const int32_t *num_corner_candidates, float min_distance)
-{
-    ARM_COMPUTE_ERROR_ON(nullptr == in_out);
-    ARM_COMPUTE_ERROR_ON(nullptr == output);
-    ARM_COMPUTE_ERROR_ON(nullptr == num_corner_candidates);
-    ARM_COMPUTE_ERROR_ON(!((min_distance > 0) && (min_distance <= 30)));
-
-    _in_out                = in_out;
-    _output                = output;
-    _min_distance          = min_distance * min_distance; // We compare squares of distances
-    _num_corner_candidates = num_corner_candidates;
-    ICPPKernel::configure(Window()); // Default 1 iteration window
-}
-
-bool CPPSortEuclideanDistanceKernel::is_parallelisable() const
-{
-    return false;
-}
-
-void CPPSortEuclideanDistanceKernel::run(const Window &window, const ThreadInfo &info)
-{
-    ARM_COMPUTE_UNUSED(info);
-    ARM_COMPUTE_UNUSED(window);
-    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
-    ARM_COMPUTE_ERROR_ON_MISMATCHING_WINDOWS(ICPPKernel::window(), window);
-
-    const int32_t num_corner_candidates = *_num_corner_candidates;
-
-    /* Sort list of corner candidates */
-    std::sort(_in_out, _in_out + num_corner_candidates, keypoint_compare);
-
-    /* Euclidean distance */
-    for(int32_t i = 0; i < num_corner_candidates; ++i)
-    {
-        if(std::get<2>(_in_out[i]) != 0.0f)
-        {
-            KeyPoint   keypt;
-            const auto xc = std::get<0>(_in_out[i]);
-            const auto yc = std::get<1>(_in_out[i]);
-
-            keypt.x               = xc;
-            keypt.y               = yc;
-            keypt.strength        = std::get<2>(_in_out[i]);
-            keypt.tracking_status = 1;
-
-            /* Store corner */
-            _output->push_back(keypt);
-            for(int32_t k = i + 1; k < num_corner_candidates; ++k)
-            {
-                const float dx = std::fabs(std::get<0>(_in_out[k]) - xc);
-                const float dy = std::fabs(std::get<1>(_in_out[k]) - yc);
-
-                if((dx < _min_distance) && (dy < _min_distance))
-                {
-                    const float d = (dx * dx + dy * dy);
-
-                    if(d < _min_distance)
-                    {
-                        /* Invalidate keypoint */
-                        std::get<2>(_in_out[k]) = 0.0f;
-                    }
-                }
-            }
-        }
-    }
-}