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

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2019-06-06 14:21:15 +02:00
/*******************************************************************************
* 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
//
#include <op_boilerplate.h>
#if NOT_EXCLUDED(OP_adjust_hue)
#include <ops/declarable/headers/parity_ops.h>
#include <ops/declarable/helpers/adjust_hue.h>
#include <NDArrayFactory.h>
namespace nd4j {
namespace ops {
DECLARE_TYPES(adjust_hue) {
getOpDescriptor()
->setAllowedInputTypes(nd4j::DataType::ANY)
->setSameMode(true);
}
CONFIGURABLE_OP_IMPL(adjust_hue, 1, 1, true, -2, -2) {
auto input = INPUT_VARIABLE(0);
auto output = OUTPUT_VARIABLE(0);
REQUIRE_TRUE(input->rankOf() == 3 || input->rankOf() == 4, 0, "AdjustHue: op expects either 3D or 4D input, but got %i instead", input->rankOf());
double delta = 0;
if (block.numT() > 0)
delta = T_ARG(0);
else if (block.width() > 1) {
auto _d = INPUT_VARIABLE(1);
if (!_d->isScalar()) {
auto str = ShapeUtils::shapeAsString(_d);
REQUIRE_TRUE(_d->isScalar(), 0, "AdjustHue: delta should be scalar NDArray, but got %s instead", str.c_str());
}
delta = _d->e<double>(0);
}
bool isNHWC = false;
if (block.numI() > 0)
isNHWC = INT_ARG(0) == 1;
int numChannels = isNHWC ? input->sizeAt(-1) : input->sizeAt(-3);
REQUIRE_TRUE(numChannels == 3, 0, "AdjustHue: this operation expects image with 3 channels (R, G, B), but got % instead", numChannels);
auto ts = NDArrayFactory::create(delta, block.launchContext());
// FIXME: delta should be NDArray scalar
helpers::_adjust_hue(block.launchContext(), input, output, &ts, isNHWC);
return Status::OK();
}
}
}
#endif