cavis/libnd4j/include/ops/declarable/helpers/image_resize.h

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/*******************************************************************************
* Copyright (c) 2015-2018 Skymind, Inc.
* Copyright (c) 2019 Konduit K.K.
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*
* This program and the accompanying materials are made available under the
* terms of the Apache License, Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
* SPDX-License-Identifier: Apache-2.0
******************************************************************************/
//
// @author sgazeos@gmail.com
//
#ifndef __IMAGE_RESIZE_HELPERS__
#define __IMAGE_RESIZE_HELPERS__
#include <op_boilerplate.h>
#include <NDArray.h>
namespace nd4j {
namespace ops {
namespace helpers {
enum ImageResizeMethods {
kResizeBilinear = 1,
kResizeBicubic,
kResizeNearest,
kResizeGaussian,
kResizeLanczos5,
kResizeMitchelcubic,
kResizeArea
};
int resizeBilinearFunctor(nd4j::LaunchContext * context, NDArray const* image, int const width, int const height,
bool const alignCorners, bool const halfPixelCenter, NDArray* output);
int resizeNeighborFunctor(nd4j::LaunchContext * context, NDArray const* image, int const width, int const height,
bool const alignCorners, bool const halfPixelCenter, NDArray* output);
int resizeBicubicFunctor(nd4j::LaunchContext * context, NDArray const* image, int const width, int const height,
bool preserveAspectRatio, bool antialias, NDArray* output);
int resizeBicubicFunctorA(nd4j::LaunchContext * context, NDArray const* image, int const width, int const height,
Shugeo image resize bicubic (#56) * Added implementation files for image_resize and resize_bicubic ops. * Image resize and image.resize_bicubic ops implementation. Initial revision. * Finished with infrastructure development for image.resize_bilinear op and image_resizo op implementation. * Refactored resize methods. * Added processing for Mitchelcubic algorithm. * Added check for input/output sizes. * Added int and float types for crop_and_resize op. * Refactored crop_and_resize output type check. * Added helper for bicubic interpolation as TF v.1 does. * Added TF v.1 bicubic helper for cuda platform. * Added cached class for bicubic algorithm. * Refactored cuda implementation for crop_and_resize helper to use proper output type. * Added facilities for bicubic interpolation. * Portion bicubic interpolation from TF. * Added tests for resize_bilinear testing. * Working implementation of bicubic interpolation and tests. * Refactored routines with image_resize bicubic op helper. * Refactored code with coding standards. * Refactored cpu helpers for resize_bicubic op. * Refactored bicubic helpers. * Added bicubic resize facilities. * Implementing cuda kernels for bicubic interpolation. Implementation step. * Cuda implementation of resize_bicubic op helper. * Refactor image.resize_bicubic op helpers. * Refactored helpers for resize_bicubic. Added error checking with cuda implementation. * Refactored cuda implementation of resize_bicubic op helper. The first working revision. * Cuda arch implementation for resize_bicubic op helper. Full working single-threaded revision. * Intermediate bicubic interpolation helper for cuda. * Refactored cpu helper for resize_bicubic. * Multithreaded cuda implementation for resize_bicubic. * Fixed merge issues. * Refactored nlp helpers. * Replicated resize_bicubic for 3D also. * Eliminated waste comments of unused code. * Eliminated waste comments with unused code. * Eliminated waste template definitions. * Eliminated waste debug code. * Eliminated waste comments. * Fixed multithreading with helpers. * Fixed test suites for float and double in float point input lists. * Fixed usage of reshape with 3D/4D on resizes. * Final fixes. * Fixed resize_neighbor op problem.
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bool const alignCorners, bool const halfPixelAlign, NDArray* output);
int resizeFunctor(nd4j::LaunchContext * context, NDArray const* image, int const width, int const height,
ImageResizeMethods method, bool preserveAspectRatio, bool antialias, NDArray* output);
void cropAndResizeFunctor(nd4j::LaunchContext * context, NDArray const* images, NDArray const* boxes,
NDArray const* indices, NDArray const* cropSize, int method, double extrapolationVal, NDArray* crops);
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}
}
}
#endif