Created
July 14, 2020 05:53
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| else if (layer_type == "Gather") | |
| { | |
| CV_Assert(node_proto.input_size() == 2); | |
| Mat indexMat = getBlob(node_proto, constBlobs, 1); | |
| CV_Assert_N(indexMat.type() == CV_32S, indexMat.total() == 1); | |
| int index = indexMat.at<int>(0); | |
| if ((constBlobs.find(node_proto.input(0)) != constBlobs.end())) | |
| { | |
| Mat input = getBlob(node_proto, constBlobs, 0); | |
| Mat out; | |
| if (layerParams.has("axis")) | |
| { | |
| int axis = layerParams.get<int>("axis"); | |
| std::vector<cv::Range> ranges(input.dims, Range::all()); | |
| ranges[axis] = Range(index, index + 1); | |
| out = input(ranges); | |
| } | |
| else | |
| { | |
| CV_Assert(index < input.total()); | |
| const int dims = input.dims; | |
| input = input.reshape(1, 1); | |
| input.dims = 2; | |
| out = input.reshape(1, 1).colRange(index, index + 1); | |
| out.dims = dims; | |
| } | |
| addConstant(layerParams.name, out, constBlobs, outShapes); | |
| continue; | |
| } | |
| else | |
| { | |
| shapeIt = outShapes.find(node_proto.input(0)); | |
| CV_Assert(shapeIt != outShapes.end()); | |
| MatShape inpShape = shapeIt->second; | |
| if (layerParams.has("axis")) | |
| { | |
| LayerParams sliceLp; | |
| sliceLp.type = "Slice"; | |
| sliceLp.name = layerParams.name + "/slice"; | |
| int axis = layerParams.get<int>("axis"); | |
| std::vector<int> begin(inpShape.size(), 0); | |
| std::vector<int> end(inpShape.size(), -1); | |
| begin[axis] = index; | |
| end[axis] = index + 1; | |
| cv::dnn::DictValue paramBegin = cv::dnn::DictValue::arrayInt(begin.data(), begin.size()); | |
| cv::dnn::DictValue paramEnd = cv::dnn::DictValue::arrayInt(end.data(), end.size()); | |
| sliceLp.set("begin", paramBegin); | |
| sliceLp.set("end", paramEnd); | |
| opencv_onnx::NodeProto proto; | |
| proto.add_input(node_proto.input(0)); | |
| proto.add_output(sliceLp.name); | |
| addLayer(dstNet, sliceLp, proto, layer_id, outShapes); | |
| std::vector<int> squeezeShape = inpShape; | |
| squeezeShape.erase(squeezeShape.begin() + axis); | |
| layerParams.type = "Reshape"; | |
| layerParams.set("dim", DictValue::arrayInt(&squeezeShape[0], squeezeShape.size())); | |
| node_proto.set_input(0, sliceLp.name); | |
| node_proto.set_output(0, layerParams.name); | |
| } | |
| else | |
| { | |
| // TODO: Support Gather without axis and add test | |
| CV_Error(Error::StsNotImplemented, "Unsupported Gather op"); | |
| } | |
| } | |
| } |
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