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/*
* Copyright (c) 2016-2018 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_NENONLINEARFILTERKERNEL_H__
#define __ARM_COMPUTE_NENONLINEARFILTERKERNEL_H__
#include "arm_compute/core/NEON/INEKernel.h"
#include "arm_compute/core/Types.h"
#include <cstdint>
namespace arm_compute
{
class ITensor;
/** Interface for the kernel to apply a non-linear filter */
class NENonLinearFilterKernel : public INEKernel
{
public:
const char *name() const override
{
return "NENonLinearFilterKernel";
}
/** Default constructor */
NENonLinearFilterKernel();
/** Prevent instances of this class from being copied (As this class contains pointers) */
NENonLinearFilterKernel(NENonLinearFilterKernel &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
NENonLinearFilterKernel &operator=(NENonLinearFilterKernel &) = delete;
/** Allow instances of this class to be moved */
NENonLinearFilterKernel(NENonLinearFilterKernel &&) = default;
/** Allow instances of this class to be moved */
NENonLinearFilterKernel &operator=(NENonLinearFilterKernel &&) = default;
/** Set the source, destination and border mode of the kernel
*
* @param[in] input Source tensor. Data type supported: U8
* @param[out] output Destination tensor. Data type supported: U8
* @param[in] function Non linear function to perform
* @param[in] mask_size Mask size. Supported sizes: 3, 5
* @param[in] pattern Mask pattern
* @param[in] mask The given mask. Will be used only if pattern is specified to PATTERN_OTHER
* @param[in] border_undefined True if the border mode is undefined. False if it's replicate or constant.
*/
void configure(const ITensor *input, ITensor *output, NonLinearFilterFunction function, unsigned int mask_size, MatrixPattern pattern, const uint8_t *mask, bool border_undefined);
// Inherited methods overridden:
void run(const Window &window, const ThreadInfo &info) override;
BorderSize border_size() const override;
private:
/** Fill mask with the corresponding given pattern.
*
* @param[in,out] mask Mask to be filled according to pattern
* @param[in] cols Columns (width) of mask
* @param[in] rows Rows (height) of mask
* @param[in] pattern Pattern to fill the mask according to
*/
void fill_mask(uint8_t *mask, int cols, int rows, MatrixPattern pattern);
/** Apply a median filter when given mask pattern is defined as box.
*
* @param[in] win Window to apply the filter on.
*/
template <int mask_w, int mask_h>
void median_filter_box(const Window &win);
/** Apply a min filter when given mask pattern is defined as box.
*
* @param[in] win Window to apply the filter on.
*/
template <int mask_w, int mask_h>
void min_filter_box(const Window &win);
/** Apply a max filter when given mask pattern is defined as box.
*
* @param[in] win Window to apply the filter on.
*/
template <int mask_w, int mask_h>
void max_filter_box(const Window &win);
/** Apply a median filter when given mask pattern is defined as cross.
*
* @param[in] win Window to apply the filter on.
*/
template <int mask_w, int mask_h>
void median_filter_cross(const Window &win);
/** Apply a min filter when given mask pattern is defined as cross.
*
* @param[in] win Window to apply the filter on.
*/
template <int mask_w, int mask_h>
void min_filter_cross(const Window &win);
/** Apply a max filter when given mask pattern is defined as cross.
*
* @param[in] win Window to apply the filter on.
*/
template <int mask_w, int mask_h>
void max_filter_cross(const Window &win);
/** Apply a median filter when given mask pattern is defined as disk.
*
* @param[in] win Window to apply the filter on.
*/
template <int mask_w, int mask_h>
void median_filter_disk(const Window &win);
/** Apply a min filter when given mask pattern is defined as disk.
*
* @param[in] win Window to apply the filter on.
*/
template <int mask_w, int mask_h>
void min_filter_disk(const Window &win);
/** Apply a max filter when given mask pattern is defined as disk.
*
* @param[in] win Window to apply the filter on.
*/
template <int mask_w, int mask_h>
void max_filter_disk(const Window &win);
/** Apply a non-linear filter when given mask has user-defined pattern.
*
* @param[in] win Window to apply the filter on.
*/
template <int mask_w, int mask_h>
void non_linear_filter_generic(const Window &win);
private:
unsigned int _border_width;
const ITensor *_input;
ITensor *_output;
const uint8_t *_mask;
MatrixPattern _pattern;
NonLinearFilterFunction _function;
unsigned int _func_idx;
BorderSize _border_size;
};
} // namespace arm_compute
#endif /*__ARM_COMPUTE_NENONLINEARFILTERKERNEL_H__ */
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