COMPMID-344 Updated doxygen

Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
diff --git a/arm_compute/core/CL/kernels/CLHOGDescriptorKernel.h b/arm_compute/core/CL/kernels/CLHOGDescriptorKernel.h
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+++ b/arm_compute/core/CL/kernels/CLHOGDescriptorKernel.h
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+/*
+ * 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.
+ */
+#ifndef __ARM_COMPUTE_CLHOGDESCRIPTORKERNEL_H__
+#define __ARM_COMPUTE_CLHOGDESCRIPTORKERNEL_H__
+
+#include "arm_compute/core/CL/ICLKernel.h"
+#include "arm_compute/core/IHOG.h"
+#include "arm_compute/core/Size2D.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** OpenCL kernel to perform HOG Orientation Binning */
+class CLHOGOrientationBinningKernel : public ICLKernel
+{
+public:
+    /** Default constructor */
+    CLHOGOrientationBinningKernel();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CLHOGOrientationBinningKernel(const CLHOGOrientationBinningKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CLHOGOrientationBinningKernel &operator=(const CLHOGOrientationBinningKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    CLHOGOrientationBinningKernel(CLHOGOrientationBinningKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    CLHOGOrientationBinningKernel &operator=(CLHOGOrientationBinningKernel &&) = default;
+    /** Default destructor */
+    ~CLHOGOrientationBinningKernel() = default;
+
+    /**  Initialise the kernel's inputs, output and HOG's metadata
+     *
+     * @param[in]  input_magnitude Input tensor which stores the magnitude of the gradient for each pixel. Data type supported: S16.
+     * @param[in]  input_phase     Input tensor which stores the phase of the gradient for each pixel. Data type supported: U8
+     * @param[out] output          Output tensor which stores the local HOG for each cell. DataType supported: F32. Number of channels supported: equal to the number of histogram bins per cell
+     * @param[in]  hog_info        HOG's metadata
+     */
+    void configure(const ICLTensor *input_magnitude, const ICLTensor *input_phase, ICLTensor *output, const HOGInfo *hog_info);
+
+    // Inherited methods overridden:
+    void run(const Window &window, cl::CommandQueue &queue) override;
+
+private:
+    const ICLTensor *_input_magnitude;
+    const ICLTensor *_input_phase;
+    ICLTensor       *_output;
+    Size2D           _cell_size;
+};
+
+/** OpenCL kernel to perform HOG block normalization */
+class CLHOGBlockNormalizationKernel : public ICLKernel
+{
+public:
+    /** Default constructor */
+    CLHOGBlockNormalizationKernel();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CLHOGBlockNormalizationKernel(const CLHOGBlockNormalizationKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CLHOGBlockNormalizationKernel &operator=(const CLHOGBlockNormalizationKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    CLHOGBlockNormalizationKernel(CLHOGBlockNormalizationKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    CLHOGBlockNormalizationKernel &operator=(CLHOGBlockNormalizationKernel &&) = default;
+    /** Default destructor */
+    ~CLHOGBlockNormalizationKernel() = default;
+
+    /** Initialise the kernel's input, output and HOG's metadata
+     *
+     * @param[in]  input    Input tensor which stores the local HOG for each cell. Data type supported: F32. Number of channels supported: equal to the number of histogram bins per cell
+     * @param[out] output   Output tensor which stores the normalised blocks. Data type supported: F32. Number of channels supported: equal to the number of histogram bins per block
+     * @param[in]  hog_info HOG's metadata
+     */
+    void configure(const ICLTensor *input, ICLTensor *output, const HOGInfo *hog_info);
+
+    // Inherited methods overridden:
+    void run(const Window &window, cl::CommandQueue &queue) override;
+
+private:
+    const ICLTensor *_input;
+    ICLTensor       *_output;
+    Size2D           _num_cells_per_block_stride;
+};
+}
+#endif /* __ARM_COMPUTE_CLHOGDESCRIPTORKERNEL_H__ */