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-/*
- * Copyright (c) 2016-2020 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_CLEQUALIZEHISTOGRAM_H
-#define ARM_COMPUTE_CLEQUALIZEHISTOGRAM_H
-
-#include "arm_compute/runtime/CL/CLDistribution1D.h"
-#include "arm_compute/runtime/CL/CLLut.h"
-#include "arm_compute/runtime/IFunction.h"
-
-#include <cstdint>
-#include <memory>
-
-namespace arm_compute
-{
-class CLCompileContext;
-class CLHistogramKernel;
-class CLHistogramBorderKernel;
-class CLTableLookupKernel;
-class ICLTensor;
-using ICLImage = ICLTensor;
-
-/** Basic function to execute histogram equalization. This function calls the following CL kernels:
- *
- * -# @ref CLHistogramKernel
- * -# @ref CLTableLookupKernel
- *
- * @deprecated This function is deprecated and is intended to be removed in 21.05 release
- *
- */
-class CLEqualizeHistogram : public IFunction
-{
-public:
- /** Default Constructor. */
- CLEqualizeHistogram();
- /** Prevent instances of this class from being copied */
- CLEqualizeHistogram(const CLEqualizeHistogram &) = delete;
- /** Prevent instances of this class from being copied */
- CLEqualizeHistogram &operator=(const CLEqualizeHistogram &) = delete;
- /** Default destructor */
- ~CLEqualizeHistogram();
- /** Initialise the kernel's inputs.
- *
- * @param[in] input Input image. Data types supported: U8.
- * @param[out] output Output of same data type with equalized brightness and contrast.
- */
- void configure(const ICLImage *input, ICLImage *output);
- /** Initialise the kernel's inputs.
- *
- * @param[in] compile_context The compile context to be used.
- * @param[in] input Input image. Data types supported: U8.
- * @param[out] output Output of same data type with equalized brightness and contrast.
- */
- void configure(const CLCompileContext &compile_context, const ICLImage *input, ICLImage *output);
-
- // Inherited methods overridden:
- void run() override;
-
-private:
- std::unique_ptr<CLHistogramKernel> _histogram_kernel; /**< Kernel that calculates the histogram of input. */
- std::unique_ptr<CLHistogramBorderKernel> _border_histogram_kernel; /**< Kernel that calculates the histogram on the borders. */
- std::unique_ptr<CLTableLookupKernel> _map_histogram_kernel; /**< Kernel that maps the input to output using the lut. */
- CLDistribution1D _hist; /**< Distribution that holds the histogram of the input image. */
- CLDistribution1D _cum_dist; /**< Distribution that holds the cummulative distribution of the input histogram. */
- CLLut _cd_lut; /**< Holds the equalization lookuptable. */
- static const uint32_t max_range = 256; /**< Histogram range of the internal histograms. */
- static const uint32_t nr_bins = 256; /**< Histogram bins of the internal histograms. */
-};
-}
-#endif /*ARM_COMPUTE_CLEQUALIZEHISTOGRAM_H */