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lanms/adaptor.so | ||
__pycache__ | ||
build | ||
lanms.egg-info | ||
.idea | ||
venv3 | ||
dist |
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# Include the license file | ||
include LICENSE | ||
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# Include the library file | ||
include lanms/adaptor.so | ||
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# Include cpp source files and Makefile | ||
include adaptor.cpp | ||
include lanms.h | ||
include Makefile | ||
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include include/clipper/clipper.hpp | ||
include include/clipper/clipper.cpp | ||
include include/pybind11/stl_bind.h | ||
include include/pybind11/embed.h | ||
include include/pybind11/attr.h | ||
include include/pybind11/class_support.h | ||
include include/pybind11/pytypes.h | ||
include include/pybind11/complex.h | ||
include include/pybind11/operators.h | ||
include include/pybind11/eval.h | ||
include include/pybind11/pybind11.h | ||
include include/pybind11/descr.h | ||
include include/pybind11/eigen.h | ||
include include/pybind11/buffer_info.h | ||
include include/pybind11/chrono.h | ||
include include/pybind11/options.h | ||
include include/pybind11/common.h | ||
include include/pybind11/cast.h | ||
include include/pybind11/numpy.h | ||
include include/pybind11/typeid.h | ||
include include/pybind11/functional.h | ||
include include/pybind11/stl.h |
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CXXFLAGS = -I include -std=c++11 -O3 $(shell python3-config --cflags) | ||
LDFLAGS = $(shell python3-config --ldflags) | ||
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DEPS = lanms.h $(shell find include -xtype f) | ||
CXX_SOURCES = adaptor.cpp include/clipper/clipper.cpp | ||
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LIB_SO = lanms/adaptor.so | ||
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$(LIB_SO): $(CXX_SOURCES) $(DEPS) | ||
$(CXX) -o $@ $(CXXFLAGS) $(LDFLAGS) $(CXX_SOURCES) --shared -fPIC | ||
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clean: | ||
rm -rf $(LIB_SO) |
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Locality-Aware Non-Maximum Suppression (LANMS) | ||
============================================== | ||
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We provide a python package for the compiled version of the LANMS as described by Zhout et al. | ||
in their paper "EAST: An Efficient and Accurate Scene Text Detector", CVPR 2017. The code is from the TensorFlow | ||
implementation available on: https://github.com/argman/EAST | ||
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We only packaged the code. For any questions or suggestions, please refer to: https://github.com/argman/EAST | ||
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Installation | ||
============ | ||
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* Create a virtual environment: | ||
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.. code-block:: bash | ||
python3 -m venv venv3 | ||
* Activate it: | ||
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.. code-block:: bash | ||
source venv3/bin/activate | ||
* Install lanms with pip: | ||
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.. code-block:: bash | ||
pip3 install lanms |
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#include "pybind11/pybind11.h" | ||
#include "pybind11/numpy.h" | ||
#include "pybind11/stl.h" | ||
#include "pybind11/stl_bind.h" | ||
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#include "lanms.h" | ||
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namespace py = pybind11; | ||
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namespace lanms_adaptor { | ||
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std::vector<std::vector<float>> polys2floats(const std::vector<lanms::Polygon> &polys) { | ||
std::vector<std::vector<float>> ret; | ||
for (size_t i = 0; i < polys.size(); i ++) { | ||
auto &p = polys[i]; | ||
auto &poly = p.poly; | ||
ret.emplace_back(std::vector<float>{ | ||
float(poly[0].X), float(poly[0].Y), | ||
float(poly[1].X), float(poly[1].Y), | ||
float(poly[2].X), float(poly[2].Y), | ||
float(poly[3].X), float(poly[3].Y), | ||
float(p.score), | ||
}); | ||
} | ||
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return ret; | ||
} | ||
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/** | ||
* | ||
* \param quad_n9 an n-by-9 numpy array, where first 8 numbers denote the | ||
* quadrangle, and the last one is the score | ||
* \param iou_threshold two quadrangles with iou score above this threshold | ||
* will be merged | ||
* | ||
* \return an n-by-9 numpy array, the merged quadrangles | ||
*/ | ||
std::vector<std::vector<float>> merge_quadrangle_n9( | ||
py::array_t<float, py::array::c_style | py::array::forcecast> quad_n9, | ||
float iou_threshold) { | ||
auto pbuf = quad_n9.request(); | ||
if (pbuf.ndim != 2 || pbuf.shape[1] != 9) | ||
throw std::runtime_error("quadrangles must have a shape of (n, 9)"); | ||
auto n = pbuf.shape[0]; | ||
auto ptr = static_cast<float *>(pbuf.ptr); | ||
return polys2floats(lanms::merge_quadrangle_n9(ptr, n, iou_threshold)); | ||
} | ||
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} | ||
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PYBIND11_PLUGIN(adaptor) { | ||
py::module m("adaptor", "NMS"); | ||
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m.def("merge_quadrangle_n9", &lanms_adaptor::merge_quadrangle_n9, | ||
"merge quadrangels"); | ||
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return m.ptr(); | ||
} | ||
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