cavis/libnd4j/include/ops/declarable/generic/parity_ops/adjust_hue.cpp

82 lines
2.6 KiB
C++

/*******************************************************************************
* Copyright (c) 2015-2018 Skymind, Inc.
*
* 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 raver119@gmail.com
// @author Yurii Shyrma (iuriish@yahoo.com)
//
#include <op_boilerplate.h>
#if NOT_EXCLUDED(OP_adjust_hue)
#include <ops/declarable/headers/parity_ops.h>
#include <ops/declarable/helpers/adjust_hue.h>
namespace nd4j {
namespace ops {
CONFIGURABLE_OP_IMPL(adjust_hue, 1, 1, true, 0, 0) {
auto input = INPUT_VARIABLE(0);
auto output = OUTPUT_VARIABLE(0);
// just skip op if input is empty
if (input->isEmpty())
return Status::OK();
const int rank = input->rankOf();
const int arg_size = block.getIArguments()->size();
const int dimC = arg_size > 0 ? (INT_ARG(0) >= 0 ? INT_ARG(0) : INT_ARG(0) + rank) : rank - 1;
REQUIRE_TRUE(block.numT() > 0 || block.width() > 1, 0, "ADJUST_HUE: delta factor is required !");
REQUIRE_TRUE(rank >= 3, 0, "ADJUST_HUE: op expects rank of input array to be >= 3, but got %i instead", rank);
if (arg_size > 0) {
REQUIRE_TRUE(dimC >= 0 && dimC < rank, 0, "Index of the Channel dimension out of range: %i not in [%i,%i) ", INT_ARG(0), -rank, rank);
}
REQUIRE_TRUE(input->sizeAt(dimC) == 3, 0, "ADJUST_HUE: operation expects image with 3 channels (R, G, B), but got %i instead", input->sizeAt(dimC));
NDArray* delta = nullptr;
if(block.width() > 1)
delta = INPUT_VARIABLE(1);
else {
delta = new NDArray(output->dataType(), block.launchContext());
delta->p(0, T_ARG(0));
}
REQUIRE_TRUE(-1. <= delta->e<double>(0) && delta->e<double>(0) <= 1., 0, "ADJUST_HUE: parameter delta must be within [-1, 1] interval, but got %f instead", delta);
helpers::adjustHue(block.launchContext(), input, delta, output, dimC);
if(block.width() == 1)
delete delta;
return Status::OK();
}
DECLARE_TYPES(adjust_hue) {
getOpDescriptor()->setAllowedInputTypes(nd4j::DataType::ANY)
->setSameMode(true);
}
}
}
#endif