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authorAnthony Barbier <anthony.barbier@arm.com>2017-09-04 18:44:23 +0100
committerAnthony Barbier <anthony.barbier@arm.com>2018-09-17 13:03:09 +0100
commit6ff3b19ee6120edf015fad8caab2991faa3070af (patch)
treea7a6dcd16dfd56d79fa1b56a313caeebcc939b68 /arm_compute/core/CL/kernels/CLHarrisCornersKernel.h
downloadComputeLibrary-6ff3b19ee6120edf015fad8caab2991faa3070af.tar.gz
COMPMID-344 Updated doxygen
Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
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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_CLHARRISCORNERSKERNEL_H__
+#define __ARM_COMPUTE_CLHARRISCORNERSKERNEL_H__
+
+#include "arm_compute/core/CL/ICLKernel.h"
+
+#include <cstdint>
+
+namespace arm_compute
+{
+class ICLTensor;
+using ICLImage = ICLTensor;
+
+/** Interface for the harris score kernel.
+ *
+ * @note The implementation supports 3, 5, and 7 for the block_size.
+ */
+class CLHarrisScoreKernel : public ICLKernel
+{
+public:
+ /** Default constructor */
+ CLHarrisScoreKernel();
+ /** Prevent instances of this class from being copied (As this class contains pointers) */
+ CLHarrisScoreKernel(const CLHarrisScoreKernel &) = delete;
+ /** Prevent instances of this class from being copied (As this class contains pointers) */
+ CLHarrisScoreKernel &operator=(const CLHarrisScoreKernel &) = delete;
+ /** Allow instances of this class to be moved */
+ CLHarrisScoreKernel(CLHarrisScoreKernel &&) = default;
+ /** Allow instances of this class to be moved */
+ CLHarrisScoreKernel &operator=(CLHarrisScoreKernel &&) = default;
+ /** Default destructor */
+ ~CLHarrisScoreKernel() = default;
+
+ /** Setup the kernel parameters
+ *
+ * @param[in] input1 Source image (gradient X). Data types supported S16, S32. (Must be the same as input2)
+ * @param[in] input2 Source image (gradient Y). Data types supported S16, S32. (Must be the same as input1)
+ * @param[out] output Destination image (harris score). Data types supported F32
+ * @param[in] block_size The block window size used to compute the Harris Corner score. Supports: 3, 5 and 7
+ * @param[in] norm_factor Normalization factor to use accordingly with the gradient size (Must be different from 0)
+ * @param[in] strength_thresh Minimum threshold with which to eliminate Harris Corner scores (computed using the normalized Sobel kernel).
+ * @param[in] sensitivity Sensitivity threshold k from the Harris-Stephens equation.
+ * @param[in] border_undefined True if the border mode is undefined. False if it's replicate or constant.
+ */
+ void configure(const ICLImage *input1, const ICLImage *input2, ICLImage *output,
+ int32_t block_size, float norm_factor, float strength_thresh, float sensitivity,
+ bool border_undefined);
+
+ // Inherited methods overridden:
+ void run(const Window &window, cl::CommandQueue &queue) override;
+ BorderSize border_size() const override;
+
+protected:
+ const ICLImage *_input1; /**< Source image - Gx component */
+ const ICLImage *_input2; /**< Source image - Gy component */
+ ICLImage *_output; /**< Source image - Harris score */
+ float _sensitivity; /**< Sensitivity value */
+ float _strength_thresh; /**< Threshold value */
+ float _norm_factor; /**< Normalization factor */
+ BorderSize _border_size; /**< Border size */
+};
+}
+#endif /* __ARM_COMPUTE_CLHARRISCORNERSKERNEL_H__ */