void blobFromProto(const caffe::BlobProto &pbBlob, cv::Mat &dstBlob)
{
MatShape shape;
blobShapeFromProto(pbBlob, shape);
dstBlob.create((int)shape.size(), &shape[0], CV_32F);
if (pbBlob.data_size())
{
// Single precision floats.
CV_Assert(pbBlob.data_size() == (int)dstBlob.total());
CV_DbgAssert(pbBlob.GetDescriptor()->FindFieldByLowercaseName("data")->cpp_type() == FieldDescriptor::CPPTYPE_FLOAT);
Mat(dstBlob.dims, &dstBlob.size[0], CV_32F, (void*)pbBlob.data().data()).copyTo(dstBlob);
}
else
{
CV_Assert(pbBlob.has_raw_data());
const std::string& raw_data = pbBlob.raw_data();
if (pbBlob.raw_data_type() == caffe::FLOAT16)
{
// Half precision floats.
CV_Assert(raw_data.size() / 2 == (int)dstBlob.total());
Mat halfs((int)shape.size(), &shape[0], CV_16SC1, (void*)raw_data.c_str());
convertFp16(halfs, dstBlob);
}
else if (pbBlob.raw_data_type() == caffe::FLOAT)
{
CV_Assert(raw_data.size() / 4 == (int)dstBlob.total());
Mat((int)shape.size(), &shape[0], CV_32FC1, (void*)raw_data.c_str()).copyTo(dstBlob);
}
else
CV_Error(Error::StsNotImplemented, "Unexpected blob data type");
}
}
static inline MatShape shape(int a0, int a1=-1, int a2=-1, int a3=-1)
{
int dims[] = {a0, a1, a2, a3};
MatShape s = shape(dims, 4);
s.erase(std::remove_if(s.begin(), s.end(), is_neg), s.end());
return s;
}
void blobFromProto(const caffe::BlobProto &pbBlob, cv::Mat &dstBlob)
{
MatShape shape;
blobShapeFromProto(pbBlob, shape);
dstBlob.create((int)shape.size(), &shape[0], CV_32F);
float *dstData = dstBlob.ptr<float>();
if (pbBlob.data_size())
{
// Single precision floats.
CV_Assert(pbBlob.data_size() == (int)dstBlob.total());
CV_DbgAssert(pbBlob.GetDescriptor()->FindFieldByLowercaseName("data")->cpp_type() == FieldDescriptor::CPPTYPE_FLOAT);
for (int i = 0; i < pbBlob.data_size(); i++)
dstData[i] = pbBlob.data(i);
}
else
{
// Half precision floats.
CV_Assert(pbBlob.raw_data_type() == caffe::FLOAT16);
std::string raw_data = pbBlob.raw_data();
CV_Assert(raw_data.size() / 2 == (int)dstBlob.total());
Mat halfs((int)shape.size(), &shape[0], CV_16SC1, (void*)raw_data.c_str());
convertFp16(halfs, dstBlob);
}
}
static inline MatShape concat(const MatShape& a, const MatShape& b)
{
MatShape c = a;
c.insert(c.end(), b.begin(), b.end());
return c;
}
bool getMemoryShapes(const std::vector<MatShape> &inputs,
const int requiredOutputs,
std::vector<MatShape> &outputs,
std::vector<MatShape> &internals) const
{
bool inplace = Layer::getMemoryShapes(inputs, requiredOutputs, outputs, internals);
MatShape shape = inputs[0];
int cAxis = clamp(axisRaw, shape.size());
shape[cAxis] = 1;
internals.assign(1, shape);
return inplace;
}
static MatShape getBufferShape(const MatShape& shape)
{
if (shape.size() == 2 || shape.size() == 4)
{
int w, h, c, n;
getCanonicalSize(shape, &w, &h, &c, &n);
return {w, h, c, n};
}
else
{
MatShape bufferShape(shape);
std::reverse(bufferShape.begin(), bufferShape.end());
return bufferShape;
}
}
inline void print(const MatShape& shape, const String& name = "")
{
printf("%s: [", name.c_str());
size_t i, n = shape.size();
for( i = 0; i < n; i++ )
printf(" %d", shape[i]);
printf(" ]\n");
}
static inline int total(const MatShape& shape, int start = -1, int end = -1)
{
if (start == -1) start = 0;
if (end == -1) end = (int)shape.size();
if (shape.empty())
return 0;
int elems = 1;
CV_Assert(start <= (int)shape.size() && end <= (int)shape.size() &&
start <= end);
for(int i = start; i < end; i++)
{
elems *= shape[i];
}
return elems;
}
bool getMemoryShapes(const std::vector<MatShape> &inputs,
const int requiredOutputs,
std::vector<MatShape> &outputs,
std::vector<MatShape> &internals) const
{
CV_Assert(inputs.size() == 2);
MatShape dstShape = inputs[0];
int start = clamp(startAxis, dstShape);
for (int i = start; i < dstShape.size(); i++)
{
dstShape[i] = inputs[1][i];
}
outputs.resize(1, dstShape);
return false;
}
static inline std::string toString(const MatShape& shape, const String& name = "")
{
std::ostringstream ss;
if (!name.empty())
ss << name << ' ';
ss << '[';
for(size_t i = 0, n = shape.size(); i < n; ++i)
ss << ' ' << shape[i];
ss << " ]";
return ss.str();
}
bool forward_ocl(InputArrayOfArrays inps, OutputArrayOfArrays outs, OutputArrayOfArrays internals)
{
std::vector<UMat> inputs;
std::vector<UMat> outputs;
inps.getUMatVector(inputs);
outs.getUMatVector(outputs);
for (size_t i = 0; i < inputs.size(); i++)
{
UMat srcBlob = inputs[i];
void *src_handle = inputs[i].handle(ACCESS_READ);
void *dst_handle = outputs[i].handle(ACCESS_WRITE);
if (src_handle != dst_handle)
{
MatShape outShape = shape(outputs[i]);
UMat umat = srcBlob.reshape(1, (int)outShape.size(), &outShape[0]);
umat.copyTo(outputs[i]);
}
}
outs.assign(outputs);
return true;
}
void getCanonicalSize(const MatShape& shape, int* width, int* height,
int* channels, int* batch)
{
const int dims = shape.size();
CV_Assert(dims == 2 || dims == 4);
*batch = shape[0];
*channels = shape[1];
if (dims == 4)
{
*width = shape[3];
*height = shape[2];
}
else
{
*width = 1;
*height = 1;
}
}
void blobShapeFromProto(const caffe::BlobProto &pbBlob, MatShape& shape)
{
shape.clear();
if (pbBlob.has_num() || pbBlob.has_channels() || pbBlob.has_height() || pbBlob.has_width())
{
shape.push_back(pbBlob.num());
shape.push_back(pbBlob.channels());
shape.push_back(pbBlob.height());
shape.push_back(pbBlob.width());
}
else if (pbBlob.has_shape())
{
const caffe::BlobShape &_shape = pbBlob.shape();
for (int i = 0; i < _shape.dim_size(); i++)
shape.push_back((int)_shape.dim(i));
}
else
shape.resize(1, 1); // Is a scalar.
}
static void computeShapeByReshapeMask(const MatShape &srcShape,
const MatShape &maskShape,
Range srcRange /*= Range::all()*/,
MatShape& dstShape)
{
int srcShapeSize = (int)srcShape.size();
int maskShapeSize = (int)maskShape.size();
if (srcRange == Range::all())
srcRange = Range(0, srcShapeSize);
else
{
int sz = srcRange.size();
srcRange.start = clamp(srcRange.start, srcShapeSize);
srcRange.end = srcRange.end == INT_MAX ? srcShapeSize : srcRange.start + sz;
}
bool explicitMask = !maskShape.empty(); // All mask values are positive.
for (int i = 0, n = maskShape.size(); i < n && explicitMask; ++i)
{
explicitMask = maskShape[i] > 0;
}
// Working range of source shape is a range where area(src) == area(mask).
if (explicitMask)
{
int maskTotal = total(maskShape);
// Go from the end of mask until we collect required total.
bool matched = false;
for (int i = srcRange.end - 1; i >= srcRange.start; --i)
{
if (matched)
{
if (i == 0 || total(srcShape, i, srcRange.end) != maskTotal)
{
srcRange.start = i + 1;
break;
}
}
else
{
matched = total(srcShape, i, srcRange.end) == maskTotal;
}
}
CV_Assert(total(srcShape, srcRange.start, srcRange.end) == maskTotal);
}
CV_Assert(0 <= srcRange.start && srcRange.start <= srcRange.end && srcRange.end <= srcShapeSize);
int dstShapeSize = srcShapeSize - srcRange.size() + maskShapeSize;
dstShape.resize(dstShapeSize);
std::copy(srcShape.begin(), srcShape.begin() + srcRange.start, dstShape.begin());
std::copy(srcShape.begin() + srcRange.end, srcShape.begin() + srcShapeSize, dstShape.begin() + srcRange.start + maskShapeSize);
int inferDim = -1;
for (int i = 0; i < maskShapeSize; i++)
{
if (maskShape[i] > 0)
{
dstShape[srcRange.start + i] = maskShape[i];
}
else if (maskShape[i] == 0)
{
if (srcRange.start + i >= srcShapeSize)
CV_Error(Error::StsBadArg, format("Copy dim[%d] (which has zero size) is out of the source shape bounds", srcRange.start + i));
dstShape[srcRange.start + i] = srcShape[srcRange.start + i];
}
else if (maskShape[i] == -1)
{
if (inferDim != -1)
CV_Error(Error::StsAssert, "Duplicate of inferred dim (which is denoted by -1)");
inferDim = srcRange.start + i;
dstShape[inferDim] = 1;
}
else
CV_Error(Error::StsBadArg, "maskShape[i] >= -1");
}
size_t srcTotal = total(srcShape);
size_t dstTotal = total(dstShape);
if (inferDim != -1)
{
if (srcTotal % dstTotal != 0)
CV_Error(Error::StsBackTrace, "Can't infer a dim denoted by -1");
dstShape[inferDim] = (int)(srcTotal / dstTotal);
}
else
{
CV_Assert(srcTotal == dstTotal);
}
}
static void computeShapeByReshapeMask(const MatShape &srcShape,
const MatShape &maskShape,
Range srcRange /*= Range::all()*/,
MatShape& dstShape)
{
int srcShapeSize = (int)srcShape.size();
int maskShapeSize = (int)maskShape.size();
if (srcRange == Range::all())
srcRange = Range(0, srcShapeSize);
else
{
int sz = srcRange.size();
srcRange.start = clamp(srcRange.start, srcShapeSize);
srcRange.end = srcRange.end == INT_MAX ? srcShapeSize : srcRange.start + sz;
}
CV_Assert(0 <= srcRange.start && srcRange.start <= srcRange.end && srcRange.end <= srcShapeSize);
int dstShapeSize = srcShapeSize - srcRange.size() + maskShapeSize;
dstShape.resize(dstShapeSize);
std::copy(srcShape.begin(), srcShape.begin() + srcRange.start, dstShape.begin());
std::copy(srcShape.begin() + srcRange.end, srcShape.begin() + srcShapeSize, dstShape.begin() + srcRange.start + maskShapeSize);
int inferDim = -1;
for (int i = 0; i < maskShapeSize; i++)
{
if (maskShape[i] > 0)
{
dstShape[srcRange.start + i] = maskShape[i];
}
else if (maskShape[i] == 0)
{
if (srcRange.start + i >= srcShapeSize)
CV_Error(Error::StsBadArg, format("Copy dim[%d] (which has zero size) is out of the source shape bounds", srcRange.start + i));
dstShape[srcRange.start + i] = srcShape[srcRange.start + i];
}
else if (maskShape[i] == -1)
{
if (inferDim != -1)
CV_Error(Error::StsAssert, "Duplicate of inferred dim (which is denoted by -1)");
inferDim = srcRange.start + i;
dstShape[inferDim] = 1;
}
else
CV_Error(Error::StsBadArg, "maskShape[i] >= -1");
}
size_t srcTotal = total(srcShape);
size_t dstTotal = total(dstShape);
if (inferDim != -1)
{
if (srcTotal % dstTotal != 0)
CV_Error(Error::StsBackTrace, "Can't infer a dim denoted by -1");
dstShape[inferDim] = (int)(srcTotal / dstTotal);
}
else
{
CV_Assert(srcTotal == dstTotal);
}
}
static inline MatShape shape(const int* dims, const int n)
{
MatShape shape;
shape.assign(dims, dims + n);
return shape;
}
void Mat_to_MatShape(cv::Mat& mat, MatShape& matshape)
{
matshape.clear();
CHECK_MAT(mat.type()==CV_32SC1 && mat.cols==1);
matshape = (MatShape) mat;
}
void ONNXImporter::populateNet(Net dstNet)
{
CV_Assert(model_proto.has_graph());
opencv_onnx::GraphProto graph_proto = model_proto.graph();
std::map<std::string, Mat> constBlobs = getGraphTensors(graph_proto);
// List of internal blobs shapes.
std::map<std::string, MatShape> outShapes;
// Add all the inputs shapes. It includes as constant blobs as network's inputs shapes.
for (int i = 0; i < graph_proto.input_size(); ++i)
{
opencv_onnx::ValueInfoProto valueInfoProto = graph_proto.input(i);
CV_Assert(valueInfoProto.has_type());
opencv_onnx::TypeProto typeProto = valueInfoProto.type();
CV_Assert(typeProto.has_tensor_type());
opencv_onnx::TypeProto::Tensor tensor = typeProto.tensor_type();
CV_Assert(tensor.has_shape());
opencv_onnx::TensorShapeProto tensorShape = tensor.shape();
MatShape inpShape(tensorShape.dim_size());
for (int j = 0; j < inpShape.size(); ++j)
{
inpShape[j] = tensorShape.dim(j).dim_value();
}
outShapes[valueInfoProto.name()] = inpShape;
}
std::string framework_name;
if (model_proto.has_producer_name()) {
framework_name = model_proto.producer_name();
}
// create map with network inputs (without const blobs)
std::map<std::string, LayerInfo> layer_id;
std::map<std::string, LayerInfo>::iterator layerId;
std::map<std::string, MatShape>::iterator shapeIt;
// fill map: push layer name, layer id and output id
std::vector<String> netInputs;
for (int j = 0; j < graph_proto.input_size(); j++)
{
const std::string& name = graph_proto.input(j).name();
if (constBlobs.find(name) == constBlobs.end()) {
netInputs.push_back(name);
layer_id.insert(std::make_pair(name, LayerInfo(0, netInputs.size() - 1)));
}
}
dstNet.setInputsNames(netInputs);
int layersSize = graph_proto.node_size();
LayerParams layerParams;
opencv_onnx::NodeProto node_proto;
for(int li = 0; li < layersSize; li++)
{
node_proto = graph_proto.node(li);
layerParams = getLayerParams(node_proto);
CV_Assert(node_proto.output_size() >= 1);
layerParams.name = node_proto.output(0);
std::string layer_type = node_proto.op_type();
layerParams.type = layer_type;
if (layer_type == "MaxPool")
{
layerParams.type = "Pooling";
layerParams.set("pool", "MAX");
layerParams.set("ceil_mode", isCeilMode(layerParams));
}
else if (layer_type == "AveragePool")
{
layerParams.type = "Pooling";
layerParams.set("pool", "AVE");
layerParams.set("ceil_mode", isCeilMode(layerParams));
layerParams.set("ave_pool_padded_area", framework_name == "pytorch");
}
else if (layer_type == "GlobalAveragePool")
{
layerParams.type = "Pooling";
layerParams.set("pool", "AVE");
layerParams.set("global_pooling", true);
}
else if (layer_type == "Add" || layer_type == "Sum")
{
if (layer_id.find(node_proto.input(1)) == layer_id.end())
{
Mat blob = getBlob(node_proto, constBlobs, 1);
blob = blob.reshape(1, 1);
if (blob.total() == 1) {
layerParams.type = "Power";
layerParams.set("shift", blob.at<float>(0));
}
else {
layerParams.type = "Scale";
layerParams.set("bias_term", true);
layerParams.blobs.push_back(blob);
}
}
else {
layerParams.type = "Eltwise";
}
}
else if (layer_type == "Sub")
{
Mat blob = getBlob(node_proto, constBlobs, 1);
if (blob.total() == 1) {
layerParams.type = "Power";
layerParams.set("shift", -blob.at<float>(0));
}
else {
layerParams.type = "Scale";
layerParams.set("has_bias", true);
layerParams.blobs.push_back(-1.0f * blob.reshape(1, 1));
}
}
else if (layer_type == "Div")
{
Mat blob = getBlob(node_proto, constBlobs, 1);
CV_Assert_N(blob.type() == CV_32F, blob.total());
if (blob.total() == 1)
{
layerParams.set("scale", 1.0f / blob.at<float>(0));
layerParams.type = "Power";
}
else
{
layerParams.type = "Scale";
divide(1.0, blob, blob);
layerParams.blobs.push_back(blob);
layerParams.set("bias_term", false);
}
}
else if (layer_type == "Constant")
{
CV_Assert(node_proto.input_size() == 0);
CV_Assert(layerParams.blobs.size() == 1);
constBlobs.insert(std::make_pair(layerParams.name, layerParams.blobs[0]));
continue;
}
else if (layer_type == "ImageScaler")
{
const float scale = layerParams.has("scale") ? layerParams.get<float>("scale") : 1.0f;
layerParams.erase("scale");
if (layerParams.has("bias"))
{
layerParams.type = "Scale";
layerParams.blobs.push_back(
Mat(Size(1, layerParams.get("bias").size()), CV_32FC1, scale));
layerParams.set("bias_term", true);
Mat bias(1, layerParams.get("bias").size(), CV_32FC1);
for (int j = 0; j < bias.total(); j++) {
bias.at<float>(0, j) = layerParams.get("bias").getRealValue(j);
}
layerParams.blobs.push_back(bias);
layerParams.erase("bias");
}
else {
layerParams.set("scale", scale);
layerParams.type = "Power";
}
}
else if (layer_type == "LeakyRelu")
{
layerParams.type = "ReLU";
replaceLayerParam(layerParams, "alpha", "negative_slope");
}
else if (layer_type == "LRN")
{
replaceLayerParam(layerParams, "size", "local_size");
}
else if (layer_type == "BatchNormalization")
{
if (node_proto.input_size() != 5)
CV_Error(Error::StsNotImplemented,
"Expected input, scale, bias, mean and var");
layerParams.type = "BatchNorm";
replaceLayerParam(layerParams, "epsilon", "eps");
replaceLayerParam(layerParams, "spatial", "use_global_stats");
Mat meanData = getBlob(node_proto, constBlobs, 3);
Mat stdData = getBlob(node_proto, constBlobs, 4);
layerParams.blobs.push_back(meanData);
layerParams.blobs.push_back(stdData);
if (!node_proto.input(1).empty()) {
layerParams.set("has_weight", true);
layerParams.blobs.push_back(getBlob(node_proto, constBlobs, 1)); // weightData
} else {
layerParams.set("has_weight", false);
}
if (!node_proto.input(2).empty()) {
layerParams.set("has_bias", true);
layerParams.blobs.push_back(getBlob(node_proto, constBlobs, 2)); // biasData
} else {
layerParams.set("has_bias", false);
}
}
else if (layer_type == "Gemm")
{
CV_Assert(node_proto.input_size() >= 2);
layerParams.type = "InnerProduct";
Mat weights = getBlob(node_proto, constBlobs, 1);
int ind_num_out = 0;
if (layerParams.has("transB") && !layerParams.get<int>("transB")) {
transpose(weights, weights);
ind_num_out = 1;
}
layerParams.blobs.push_back(weights);
if (node_proto.input_size() == 3) {
Mat bias = getBlob(node_proto, constBlobs, 2);
layerParams.blobs.push_back(bias);
}
layerParams.set("num_output", layerParams.blobs[0].size[ind_num_out]);
layerParams.set("bias_term", node_proto.input_size() == 3);
}
else if (layer_type == "MatMul")
{
CV_Assert(node_proto.input_size() == 2);
layerParams.type = "InnerProduct";
Mat blob = getBlob(node_proto, constBlobs, 1);
layerParams.blobs.push_back(blob.t());
layerParams.set("bias_term", false);
layerParams.set("num_output", layerParams.blobs[0].size[0]);
}
else if (layer_type == "Mul")
{
CV_Assert(node_proto.input_size() == 2);
if (layer_id.find(node_proto.input(1)) == layer_id.end()) {
Mat blob = getBlob(node_proto, constBlobs, 1);
blob = blob.reshape(1, 1);
if (blob.total() == 1) {
layerParams.set("scale", blob.at<float>(0));
layerParams.type = "Power";
}
else {
layerParams.blobs.push_back(blob);
layerParams.type = "Scale";
}
}
else {
layerParams.type = "Eltwise";
layerParams.set("operation", "prod");
}
}
else if (layer_type == "Conv")
{
CV_Assert(node_proto.input_size() >= 2);
layerParams.type = "Convolution";
for (int j = 1; j < node_proto.input_size(); j++) {
layerParams.blobs.push_back(getBlob(node_proto, constBlobs, j));
}
layerParams.set("num_output", layerParams.blobs[0].size[0]);
layerParams.set("bias_term", node_proto.input_size() == 3);
}
else if (layer_type == "ConvTranspose")
{
CV_Assert(node_proto.input_size() >= 2);
layerParams.type = "Deconvolution";
for (int j = 1; j < node_proto.input_size(); j++) {
layerParams.blobs.push_back(getBlob(node_proto, constBlobs, j));
}
layerParams.set("num_output", layerParams.blobs[0].size[1]);
layerParams.set("bias_term", node_proto.input_size() == 3);
}
else if (layer_type == "Transpose")
{
layerParams.type = "Permute";
replaceLayerParam(layerParams, "perm", "order");
}
else if (layer_type == "Unsqueeze")
{
CV_Assert(node_proto.input_size() == 1);
Mat input = getBlob(node_proto, constBlobs, 0);
DictValue axes = layerParams.get("axes");
std::vector<int> dims;
for (int j = 0; j < input.dims; j++) {
dims.push_back(input.size[j]);
}
CV_Assert(axes.getIntValue(axes.size()-1) <= dims.size());
for (int j = 0; j < axes.size(); j++) {
dims.insert(dims.begin() + axes.getIntValue(j), 1);
}
Mat out = input.reshape(0, dims);
constBlobs.insert(std::make_pair(layerParams.name, out));
continue;
}
else if (layer_type == "Reshape")
{
CV_Assert(node_proto.input_size() == 2 || layerParams.has("shape"));
if (node_proto.input_size() == 2) {
Mat blob = getBlob(node_proto, constBlobs, 1);
CV_Assert(blob.type() == CV_32SC1);
if (layer_id.find(node_proto.input(0)) == layer_id.end()) {
Mat input = getBlob(node_proto, constBlobs, 0);
Mat out = input.reshape(0, static_cast<std::vector<int> >(blob));
constBlobs.insert(std::make_pair(layerParams.name, out));
continue;
}
layerParams.set("dim", DictValue::arrayInt<int*>(
blob.ptr<int>(), blob.total() ));
}
else {
DictValue shape = layerParams.get("shape");
std::vector<int> dim;
for (int j = 0; j < shape.size(); j++) {
dim.push_back(shape.getIntValue(j));
}
if (layer_id.find(node_proto.input(0)) == layer_id.end()) {
Mat input = getBlob(node_proto, constBlobs, 0);
Mat out = input.reshape(0, dim);
constBlobs.insert(std::make_pair(layerParams.name, out));
continue;
}
replaceLayerParam(layerParams, "shape", "dim");
}
}
else if (layer_type == "Pad")
{
layerParams.type = "Padding";
}
else if (layer_type == "Shape")
{
CV_Assert(node_proto.input_size() == 1);
shapeIt = outShapes.find(node_proto.input(0));
CV_Assert(shapeIt != outShapes.end());
MatShape inpShape = shapeIt->second;
Mat shapeMat(inpShape.size(), 1, CV_32S);
for (int j = 0; j < inpShape.size(); ++j)
shapeMat.at<int>(j) = inpShape[j];
shapeMat.dims = 1;
constBlobs.insert(std::make_pair(layerParams.name, shapeMat));
continue;
}
else if (layer_type == "Gather")
{
CV_Assert(node_proto.input_size() == 2);
CV_Assert(layerParams.has("axis"));
Mat input = getBlob(node_proto, constBlobs, 0);
Mat indexMat = getBlob(node_proto, constBlobs, 1);
CV_Assert_N(indexMat.type() == CV_32S, indexMat.total() == 1);
int index = indexMat.at<int>(0);
int axis = layerParams.get<int>("axis");
std::vector<cv::Range> ranges(input.dims, Range::all());
ranges[axis] = Range(index, index + 1);
Mat out = input(ranges);
constBlobs.insert(std::make_pair(layerParams.name, out));
continue;
}
else if (layer_type == "Concat")
{
bool hasVariableInps = false;
for (int i = 0; i < node_proto.input_size(); ++i)
{
if (layer_id.find(node_proto.input(i)) != layer_id.end())
{
hasVariableInps = true;
break;
}
}
if (!hasVariableInps)
{
std::vector<Mat> inputs(node_proto.input_size()), concatenated;
for (size_t i = 0; i < inputs.size(); ++i)
{
inputs[i] = getBlob(node_proto, constBlobs, i);
}
Ptr<Layer> concat = ConcatLayer::create(layerParams);
runLayer(concat, inputs, concatenated);
CV_Assert(concatenated.size() == 1);
constBlobs.insert(std::make_pair(layerParams.name, concatenated[0]));
continue;
}
}
else
{
for (int j = 0; j < node_proto.input_size(); j++) {
if (layer_id.find(node_proto.input(j)) == layer_id.end())
layerParams.blobs.push_back(getBlob(node_proto, constBlobs, j));
}
}
int id = dstNet.addLayer(layerParams.name, layerParams.type, layerParams);
layer_id.insert(std::make_pair(layerParams.name, LayerInfo(id, 0)));
std::vector<MatShape> layerInpShapes, layerOutShapes, layerInternalShapes;
for (int j = 0; j < node_proto.input_size(); j++) {
layerId = layer_id.find(node_proto.input(j));
if (layerId != layer_id.end()) {
dstNet.connect(layerId->second.layerId, layerId->second.outputId, id, j);
// Collect input shapes.
shapeIt = outShapes.find(node_proto.input(j));
CV_Assert(shapeIt != outShapes.end());
layerInpShapes.push_back(shapeIt->second);
}
}
// Compute shape of output blob for this layer.
Ptr<Layer> layer = dstNet.getLayer(id);
layer->getMemoryShapes(layerInpShapes, 0, layerOutShapes, layerInternalShapes);
CV_Assert(!layerOutShapes.empty());
outShapes[layerParams.name] = layerOutShapes[0];
}
}
inline int clamp(int ax, const MatShape& shape)
{
return clamp(ax, (int)shape.size());
}
bool forward_ocl(InputArrayOfArrays inputs_, OutputArrayOfArrays outputs_, OutputArrayOfArrays internals_)
{
std::vector<UMat> inputs;
std::vector<UMat> outputs;
std::vector<UMat> internals;
inputs_.getUMatVector(inputs);
outputs_.getUMatVector(outputs);
internals_.getUMatVector(internals);
CV_Assert(inputs.size() == 1 && outputs.size() == 1);
CV_Assert(inputs[0].total() == outputs[0].total());
const UMat& inp0 = inputs[0];
UMat& buffer = internals[0];
size_t num = inp0.size[0];
size_t channels = inp0.size[1];
size_t channelSize = inp0.total() / (num * channels);
for (size_t i = 0; i < num; ++i)
{
MatShape s = shape(channels, channelSize);
UMat src = inputs[i].reshape(1, s.size(), &s[0]);
UMat dst = outputs[i].reshape(1, s.size(), &s[0]);
UMat abs_mat;
absdiff(src, cv::Scalar::all(0), abs_mat);
pow(abs_mat, pnorm, buffer);
if (acrossSpatial)
{
// add eps to avoid overflow
float absSum = sum(buffer)[0] + epsilon;
float norm = pow(absSum, 1.0f / pnorm);
multiply(src, 1.0f / norm, dst);
}
else
{
Mat norm;
reduce(buffer, norm, 0, REDUCE_SUM);
norm += epsilon;
// compute inverted norm to call multiply instead divide
cv::pow(norm, -1.0f / pnorm, norm);
repeat(norm, channels, 1, buffer);
multiply(src, buffer, dst);
}
if (!blobs.empty())
{
// scale the output
Mat scale = blobs[0];
if (scale.total() == 1)
{
// _scale: 1 x 1
multiply(dst, scale.at<float>(0, 0), dst);
}
else
{
// _scale: _channels x 1
CV_Assert(scale.total() == channels);
repeat(scale, 1, dst.cols, buffer);
multiply(dst, buffer, dst);
}
}
}
return true;
}