diff options
Diffstat (limited to 'arm_compute/runtime/CL/functions/CLLaplacianPyramid.h')
-rw-r--r-- | arm_compute/runtime/CL/functions/CLLaplacianPyramid.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/arm_compute/runtime/CL/functions/CLLaplacianPyramid.h b/arm_compute/runtime/CL/functions/CLLaplacianPyramid.h new file mode 100644 index 0000000000..0c6708aa73 --- /dev/null +++ b/arm_compute/runtime/CL/functions/CLLaplacianPyramid.h @@ -0,0 +1,85 @@ +/* + * Copyright (c) 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_CLLAPLACIANPYRAMID_H__ +#define __ARM_COMPUTE_CLLAPLACIANPYRAMID_H__ + +#include "arm_compute/core/Types.h" +#include "arm_compute/runtime/CL/CLPyramid.h" +#include "arm_compute/runtime/CL/functions/CLArithmeticSubtraction.h" +#include "arm_compute/runtime/CL/functions/CLDepthConvert.h" +#include "arm_compute/runtime/CL/functions/CLGaussian5x5.h" +#include "arm_compute/runtime/CL/functions/CLGaussianPyramid.h" +#include "arm_compute/runtime/IFunction.h" + +#include <cstddef> +#include <cstdint> +#include <memory> + +namespace arm_compute +{ +class ICLTensor; + +/** Basic function to execute laplacian pyramid. This function calls the following OpenCL kernels and functions: + * + * -# @ref CLGaussianPyramidHalf + * -# @ref CLGaussian5x5 + * -# @ref CLArithmeticSubtraction + * + * First a Gaussian pyramid is created. Then, for each level i, the corresponding tensor I(i) is blurred with the Gaussian 5x5 filter, and then + * difference between the two tensors is the corresponding level L(i) of the Laplacian pyramid. + * L(i) = I(i) - Gaussian5x5(I(i)) + * Level 0 has always the same first two dimensions as the input tensor. +*/ +class CLLaplacianPyramid : public IFunction +{ +public: + /** Constructor */ + CLLaplacianPyramid(); + /** Initialise the function's source, destinations and border mode. + * + * @param[in] input Source tensor. Data types supported: U8. + * @param[out] pyramid Destination pyramid tensors, Data types supported at each level: S16. + * @param[out] output The lowest resolution tensor necessary to reconstruct the input tensor from the pyramid. Data types supported: S16. + * The first two dimensions of this tensor must match the first two dimensions of the tensor in the last level of the pyramid, that is: + * output.width = input.width() / pow(2,pyramid_levels-1) and out.height = in.height() / pow(2,pyramid_levels-1) + * @param[in] border_mode Border mode to use. + * @param[in] constant_border_value (Optional) Constant value to use for borders if border_mode is set to CONSTANT. + * + */ + void configure(ICLTensor *input, CLPyramid *pyramid, ICLTensor *output, BorderMode border_mode, uint8_t constant_border_value); + + // Inherited methods overridden: + void run() override; + +private: + size_t _num_levels; + CLGaussianPyramidHalf _gaussian_pyr_function; + std::unique_ptr<CLGaussian5x5[]> _convf; + std::unique_ptr<CLArithmeticSubtraction[]> _subf; + CLDepthConvert _depth_function; + CLPyramid _gauss_pyr; + CLPyramid _conv_pyr; +}; +} +#endif /*__ARM_COMPUTE_CLLAPLACIANPYRAMID_H__ */ |