75 lines
2.9 KiB
C++
75 lines
2.9 KiB
C++
/*******************************************************************************
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* Copyright (c) 2019 Konduit K.K.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author Oleh Semeniv (oleg.semeniv@gmail.com)
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//
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#include <ops/declarable/headers/images.h>
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#include <ops/declarable/CustomOperations.h>
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#include <helpers/ConstantTadHelper.h>
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#include <execution/Threads.h>
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namespace nd4j {
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namespace ops {
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CUSTOM_OP_IMPL(rgb_to_grs, 1, 1, false, 0, 0) {
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const auto input = INPUT_VARIABLE(0);
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auto output = OUTPUT_VARIABLE(0);
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const int inRank = input->rankOf();
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const int argSize = block.getIArguments()->size();
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const int dimC = argSize > 0 ? (INT_ARG(0) >= 0 ? INT_ARG(0) : INT_ARG(0) + inRank) : inRank - 1;
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REQUIRE_TRUE(inRank >= 1, 0, "RGBtoGrayScale: Fails to meet the inRank requirement: %i >= 1 ", inRank);
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if (argSize > 0) {
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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);
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}
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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));
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helpers::transformRgbGrs(block.launchContext(), *input, *output, dimC);
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return Status::OK();
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}
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DECLARE_TYPES(rgb_to_grs) {
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getOpDescriptor()->setAllowedInputTypes( {ALL_INTS, ALL_FLOATS} )
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->setSameMode(true);
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}
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DECLARE_SHAPE_FN(rgb_to_grs) {
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const auto input = INPUT_VARIABLE(0);
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const int inRank = input->rankOf();
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const int argSize = block.getIArguments()->size();
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const int dimC = argSize > 0 ? (INT_ARG(0) >= 0 ? INT_ARG(0) : INT_ARG(0) + inRank) : inRank - 1;
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REQUIRE_TRUE(inRank >= 1, 0, "RGBtoGrayScale: Fails to meet the inRank requirement: %i >= 1 ", inRank);
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if (argSize > 0) {
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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);
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}
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REQUIRE_TRUE(input->sizeAt(dimC) == 3, 0, "RGBtoGrayScale: operation expects 3 channels (R, B, G) in last dimention, but received %i", dimC);
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auto nShape = input->getShapeAsVector();
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nShape[dimC] = 1;
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return SHAPELIST(ConstantShapeHelper::getInstance()->createShapeInfo(input->dataType(), input->ordering(), nShape));
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}
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}
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}
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