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2026-07-13 12:47:05 +08:00

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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.
*
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership.
* 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 Oleh Semeniv (oleg.semeniv@gmail.com)
//
#include <execution/Threads.h>
#include <helpers/ConstantTadHelper.h>
#include <ops/declarable/CustomOperations.h>
#include <ops/declarable/headers/images.h>
#if NOT_EXCLUDED(OP_rgb_to_grs)
namespace sd {
namespace ops {
CUSTOM_OP_IMPL(rgb_to_grs, 1, 1, false, 0, 0) {
const auto input = INPUT_VARIABLE(0);
auto output = OUTPUT_VARIABLE(0);
const int inRank = input->rankOf();
const int argSize = block.getIArguments()->size();
const int dimC = argSize > 0 ? (INT_ARG(0) >= 0 ? INT_ARG(0) : INT_ARG(0) + inRank) : inRank - 1;
REQUIRE_TRUE(inRank >= 1, 0, "RGBtoGrayScale: Fails to meet the inRank requirement: %i >= 1 ", inRank);
if (argSize > 0) {
REQUIRE_TRUE(dimC >= 0 && dimC < inRank, 0, "Index of the Channel dimension out of range: %i not in [%i,%i) ",
INT_ARG(0), -inRank, inRank);
}
REQUIRE_TRUE(input->sizeAt(dimC) == 3, 0,
"RGBGrayScale: operation expects 3 channels (R, G, B) in last dimention, but received %i instead",
input->sizeAt(dimC));
helpers::transformRgbGrs(block.launchContext(), *input, *output, dimC);
return Status::OK;
}
DECLARE_TYPES(rgb_to_grs) { getOpDescriptor()->setAllowedInputTypes({ALL_INTS, ALL_FLOATS})->setSameMode(true); }
DECLARE_SHAPE_FN(rgb_to_grs) {
const auto input = INPUT_VARIABLE(0);
const int inRank = input->rankOf();
const int argSize = block.getIArguments()->size();
const int dimC = argSize > 0 ? (INT_ARG(0) >= 0 ? INT_ARG(0) : INT_ARG(0) + inRank) : inRank - 1;
REQUIRE_TRUE(inRank >= 1, 0, "RGBtoGrayScale: Fails to meet the inRank requirement: %i >= 1 ", inRank);
if (argSize > 0) {
REQUIRE_TRUE(dimC >= 0 && dimC < inRank, 0, "Index of the Channel dimension out of range: %i not in [%i,%i) ",
INT_ARG(0), -inRank, inRank);
}
REQUIRE_TRUE(input->sizeAt(dimC) == 3, 0,
"RGBtoGrayScale: operation expects 3 channels (R, B, G) in last dimention, but received %i", dimC);
auto* inputShapeVec = input->getShapeAsVector();
(*inputShapeVec)[dimC] = 1;
auto result = SHAPELIST(ConstantShapeHelper::getInstance().createShapeInfo(input->dataType(), input->ordering(), *inputShapeVec));
delete inputShapeVec;
return result;
}
} // namespace ops
} // namespace sd
#endif