COMPMID-344 Updated doxygen

Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
diff --git a/arm_compute/core/IMultiHOG.h b/arm_compute/core/IMultiHOG.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_IMULTIHOG_H__
+#define __ARM_COMPUTE_IMULTIHOG_H__
+
+#include "arm_compute/core/IHOG.h"
+
+#include <cstddef>
+
+namespace arm_compute
+{
+/** Interface for storing multiple HOG data-objects */
+class IMultiHOG
+{
+public:
+    /** Default destructor */
+    virtual ~IMultiHOG() = default;
+    /** The number of HOG models stored
+     *
+     * @return The number of HOG models stored
+     */
+    virtual size_t num_models() const = 0;
+    /** Return a pointer to the requested HOG model
+     *
+     *  @param[in] index The index of the wanted HOG model.
+     *
+     *  @return A pointer pointed to the HOG model
+     */
+    virtual IHOG *model(size_t index) = 0;
+    /** Return a const pointer to the requested HOG model
+     *
+     *  @param[in] index The index of the wanted HOG model.
+     *
+     *  @return A const pointer pointed to the HOG model
+     */
+    virtual const IHOG *model(size_t index) const = 0;
+};
+}
+
+#endif /* __ARM_COMPUTE_IMULTIHOG_H__ */