| /* |
| * 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/runtime/CL/functions/CLHOGDescriptor.h" |
| |
| #include "arm_compute/core/Error.h" |
| #include "arm_compute/core/HOGInfo.h" |
| #include "arm_compute/core/Size2D.h" |
| #include "arm_compute/core/Validate.h" |
| #include "arm_compute/runtime/CL/CLScheduler.h" |
| #include "src/core/CL/kernels/CLFillBorderKernel.h" |
| #include "src/core/CL/kernels/CLHOGDescriptorKernel.h" |
| #include "src/core/CL/kernels/CLMagnitudePhaseKernel.h" |
| |
| using namespace arm_compute; |
| |
| CLHOGDescriptor::CLHOGDescriptor(std::shared_ptr<IMemoryManager> memory_manager) |
| : _memory_group(std::move(memory_manager)), |
| _gradient(), |
| _orient_bin(std::make_unique<CLHOGOrientationBinningKernel>()), |
| _block_norm(std::make_unique<CLHOGBlockNormalizationKernel>()), |
| _mag(), |
| _phase(), |
| _hog_space() |
| { |
| } |
| |
| CLHOGDescriptor::~CLHOGDescriptor() = default; |
| |
| void CLHOGDescriptor::configure(ICLTensor *input, ICLTensor *output, const IHOG *hog, BorderMode border_mode, uint8_t constant_border_value) |
| { |
| configure(CLKernelLibrary::get().get_compile_context(), input, output, hog, border_mode, constant_border_value); |
| } |
| |
| void CLHOGDescriptor::configure(const CLCompileContext &compile_context, ICLTensor *input, ICLTensor *output, const IHOG *hog, BorderMode border_mode, uint8_t constant_border_value) |
| { |
| ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8); |
| ARM_COMPUTE_ERROR_ON(nullptr == output); |
| ARM_COMPUTE_ERROR_ON(nullptr == hog); |
| |
| const HOGInfo *hog_info = hog->info(); |
| const size_t width = input->info()->dimension(Window::DimX); |
| const size_t height = input->info()->dimension(Window::DimY); |
| const size_t num_bins = hog_info->num_bins(); |
| |
| Size2D cell_size = hog_info->cell_size(); |
| |
| // Calculate number of cells along the x and y directions for the hog_space |
| const size_t num_cells_x = width / cell_size.width; |
| const size_t num_cells_y = height / cell_size.height; |
| |
| // TensorShape of the input image |
| const TensorShape &shape_img = input->info()->tensor_shape(); |
| |
| // TensorShape of the hog space |
| TensorShape shape_hog_space = input->info()->tensor_shape(); |
| shape_hog_space.set(Window::DimX, num_cells_x); |
| shape_hog_space.set(Window::DimY, num_cells_y); |
| |
| // Intitialize tensors for magnitude, phase and hog space |
| TensorInfo info_mag(shape_img, Format::S16); |
| _mag.allocator()->init(info_mag); |
| |
| TensorInfo info_phase(shape_img, Format::U8); |
| _phase.allocator()->init(info_phase); |
| |
| TensorInfo info_space(shape_hog_space, num_bins, DataType::F32); |
| _hog_space.allocator()->init(info_space); |
| |
| // Manage intermediate buffers |
| _memory_group.manage(&_mag); |
| _memory_group.manage(&_phase); |
| |
| // Initialise gradient kernel |
| _gradient.configure(compile_context, input, &_mag, &_phase, hog_info->phase_type(), border_mode, constant_border_value); |
| |
| // Manage intermediate buffers |
| _memory_group.manage(&_hog_space); |
| |
| // Initialise orientation binning kernel |
| _orient_bin->configure(compile_context, &_mag, &_phase, &_hog_space, hog->info()); |
| |
| // Initialize HOG norm kernel |
| _block_norm->configure(compile_context, &_hog_space, output, hog->info()); |
| |
| // Allocate intermediate tensors |
| _mag.allocator()->allocate(); |
| _phase.allocator()->allocate(); |
| _hog_space.allocator()->allocate(); |
| } |
| |
| void CLHOGDescriptor::run() |
| { |
| MemoryGroupResourceScope scope_mg(_memory_group); |
| |
| // Run gradient |
| _gradient.run(); |
| |
| // Run orientation binning |
| CLScheduler::get().enqueue(*_orient_bin, false); |
| |
| // Run block normalization |
| CLScheduler::get().enqueue(*_block_norm); |
| } |