COMPMID-344 Updated doxygen

Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
diff --git a/arm_compute/core/PyramidInfo.h b/arm_compute/core/PyramidInfo.h
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+/*
+ * Copyright (c) 2016, 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_PYRAMIDINFO_H__
+#define __ARM_COMPUTE_PYRAMIDINFO_H__
+
+#include "arm_compute/core/TensorShape.h"
+#include "arm_compute/core/Types.h"
+
+#include <cstddef>
+
+namespace arm_compute
+{
+/** Store the Pyramid's metadata */
+class PyramidInfo
+{
+public:
+    /** Default constructor */
+    PyramidInfo();
+    /** Default destructor */
+    virtual ~PyramidInfo() = default;
+    /** Allow instances of this class to be copy constructed */
+    PyramidInfo(const PyramidInfo &) = default;
+    /** Allow instances of this class to be copied */
+    PyramidInfo &operator=(const PyramidInfo &) = default;
+    /** Allow instances of this class to be move constructed */
+    PyramidInfo(PyramidInfo &&) = default;
+    /** Allow instances of this class to be moved */
+    PyramidInfo &operator=(PyramidInfo &&) = default;
+
+    /** Create pyramid info for 2D tensors
+     *
+     * @param[in] num_levels The number of pyramid levels. This is required to be a non-zero value
+     * @param[in] scale      Used to indicate the scale between the pyramid levels.
+     *                       This is required to be a non-zero positive value.
+     * @param[in] width      The width of the 2D tensor at 0th pyramid level
+     * @param[in] height     The height of the 2D tensor at 0th pyramid level
+     * @param[in] format     The format of all 2D tensors in the pyramid
+     *                       NV12, NV21, IYUV, UYVY and YUYV formats are not supported.
+     */
+    PyramidInfo(size_t num_levels, float scale, size_t width, size_t height, Format format);
+
+    /** Create pyramid info using TensorShape
+     *
+     * @param[in] num_levels   The number of pyramid levels. This is required to be a non-zero value
+     * @param[in] scale        Used to indicate the scale between the pyramid levels.
+     *                         This is required to be a non-zero positive value.
+     * @param[in] tensor_shape It specifies the size for each dimension of the tensor 0th pyramid level in number of elements
+     * @param[in] format       The format of all tensors in the pyramid
+     */
+    PyramidInfo(size_t num_levels, float scale, const TensorShape &tensor_shape, Format format);
+
+    /** Initialize pyramid's metadata for 2D tensors
+     *
+     * @param[in] num_levels The number of pyramid levels. This is required to be a non-zero value
+     * @param[in] scale      Used to indicate the scale between the pyramid levels.
+     *                       This is required to be a non-zero positive value.
+     * @param[in] width      The width of the 2D tensor at 0th pyramid level
+     * @param[in] height     The height of the 2D tensor at 0th pyramid level
+     * @param[in] format     The format of all 2D tensors in the pyramid
+     *                       NV12, NV21, IYUV, UYVY and YUYV formats are not supported.
+     */
+    void init(size_t num_levels, float scale, size_t width, size_t height, Format format);
+    /** Initialize pyramid's metadata using TensorShape
+     *
+     * @param[in] num_levels   The number of pyramid levels. This is required to be a non-zero value
+     * @param[in] scale        Used to indicate the scale between the pyramid levels.
+     *                         This is required to be a non-zero positive value.
+     * @param[in] tensor_shape It specifies the size for each dimension of the tensor 0th pyramid level in number of elements
+     * @param[in] format       The format of all tensors in the pyramid
+     */
+    void init(size_t num_levels, float scale, const TensorShape &tensor_shape, Format format);
+    /** Return the number of the pyramid levels
+     *
+     *  @return The number of the pyramid levels
+     */
+    size_t num_levels() const;
+    /** Return the width of the 0th level tensor
+     *
+     *  @return The width of the 0th level tensor
+     */
+    size_t width() const;
+    /** Return the height of the 0th level tensor
+     *
+     *  @return The height of the 0th level tensor
+     */
+    size_t height() const;
+    /** Return the TensorShape of the o-th level tensor
+     *
+     * @return
+     */
+    const TensorShape &tensor_shape() const;
+    /** Return the image format of all tensor in the pyramid
+     *
+     *  @return The image format
+     */
+    Format format() const;
+    /** Return the scale factor of the pyramid
+     *
+     *  @return Return the scale factor
+     */
+    float scale() const;
+
+private:
+    size_t      _num_levels;
+    TensorShape _tensor_shape;
+    Format      _format;
+    float       _scale;
+};
+}
+#endif /*__ARM_COMPUTE_PYRAMIDINFO_H__ */