比較簡單的代碼：
#include <dlib/image_processing/frontal_face_detector.h>
#include <dlib/gui_widgets.h>
#include <dlib/image_io.h>
using namespace dlib;
void TestFaceDetect(const char *filename)
{
frontal_face_detector detector = get_frontal_face_detector();
array2d<unsigned char> img;
// load_image(img, filename);
// std::vector<rectangle> dets = detector(img);
// printf("Number of faces detected : %d\n", dets.size());
}
int main(int argc, char** argv)
{
const char *filename = "test.png";
TestFaceDetect(filename);
return 0;
}
提示例外如下：
====================[ Build | dlibTest | Debug ]================================
/Applications/CLion.app/Contents/bin/cmake/mac/bin/cmake --build /Users/mac/Desktop/ai/dlibTest/cmake-build-debug --target dlibTest -- -j 2
[ 50%] Linking CXX executable dlibTest
Undefined symbols for architecture x86_64:
"dlib::entropy_decoder_kernel_2::get_target(unsigned int)", referenced from:
dlib::compress_stream_kernel_1<dlib::entropy_encoder_model_kernel_5<257ul, dlib::entropy_encoder_kernel_2, 200000ul, 4ul>, dlib::entropy_decoder_model_kernel_5<257ul, dlib::entropy_decoder_kernel_2, 200000ul, 4ul>, dlib::crc32>::decompress(std::__1::basic_istream<char, std::__1::char_traits<char> >&, std::__1::basic_ostream<char, std::__1::char_traits<char> >&) const in main1.cpp.o
dlib::entropy_decoder_model_kernel_5<257ul, dlib::entropy_decoder_kernel_2, 200000ul, 4ul>::decode(unsigned long&) in main1.cpp.o
"dlib::entropy_decoder_kernel_2::set_stream(std::__1::basic_istream<char, std::__1::char_traits<char> >&)", referenced from:
dlib::compress_stream_kernel_1<dlib::entropy_encoder_model_kernel_5<257ul, dlib::entropy_encoder_kernel_2, 200000ul, 4ul>, dlib::entropy_decoder_model_kernel_5<257ul, dlib::entropy_decoder_kernel_2, 200000ul, 4ul>, dlib::crc32>::decompress(std::__1::basic_istream<char, std::__1::char_traits<char> >&, std::__1::basic_ostream<char, std::__1::char_traits<char> >&) const in main1.cpp.o
"dlib::entropy_decoder_kernel_2::decode(unsigned int, unsigned int)", referenced from:
dlib::compress_stream_kernel_1<dlib::entropy_encoder_model_kernel_5<257ul, dlib::entropy_encoder_kernel_2, 200000ul, 4ul>, dlib::entropy_decoder_model_kernel_5<257ul, dlib::entropy_decoder_kernel_2, 200000ul, 4ul>, dlib::crc32>::decompress(std::__1::basic_istream<char, std::__1::char_traits<char> >&, std::__1::basic_ostream<char, std::__1::char_traits<char> >&) const in main1.cpp.o
dlib::entropy_decoder_model_kernel_5<257ul, dlib::entropy_decoder_kernel_2, 200000ul, 4ul>::decode(unsigned long&) in main1.cpp.o
"dlib::entropy_decoder_kernel_2::entropy_decoder_kernel_2()", referenced from:
dlib::compress_stream_kernel_1<dlib::entropy_encoder_model_kernel_5<257ul, dlib::entropy_encoder_kernel_2, 200000ul, 4ul>, dlib::entropy_decoder_model_kernel_5<257ul, dlib::entropy_decoder_kernel_2, 200000ul, 4ul>, dlib::crc32>::decompress(std::__1::basic_istream<char, std::__1::char_traits<char> >&, std::__1::basic_ostream<char, std::__1::char_traits<char> >&) const in main1.cpp.o
"dlib::entropy_decoder_kernel_2::~entropy_decoder_kernel_2()", referenced from:
dlib::compress_stream_kernel_1<dlib::entropy_encoder_model_kernel_5<257ul, dlib::entropy_encoder_kernel_2, 200000ul, 4ul>, dlib::entropy_decoder_model_kernel_5<257ul, dlib::entropy_decoder_kernel_2, 200000ul, 4ul>, dlib::crc32>::decompress(std::__1::basic_istream<char, std::__1::char_traits<char> >&, std::__1::basic_ostream<char, std::__1::char_traits<char> >&) const in main1.cpp.o
"dlib::base64::base64()", referenced from:
dlib::get_serialized_frontal_faces() in main1.cpp.o
"dlib::base64::~base64()", referenced from:
dlib::get_serialized_frontal_faces() in main1.cpp.o
"dlib::base64::decode(std::__1::basic_istream<char, std::__1::char_traits<char> >&, std::__1::basic_ostream<char, std::__1::char_traits<char> >&) const", referenced from:
dlib::get_serialized_frontal_faces() in main1.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [dlibTest] Error 1
make[2]: *** [CMakeFiles/dlibTest.dir/all] Error 2
make[1]: *** [CMakeFiles/dlibTest.dir/rule] Error 2
make: *** [dlibTest] Error 2
uj5u.com熱心網友回復：
補充一下，是在mac os 平臺下 。uj5u.com熱心網友回復：
我也遇到了 心累轉載請註明出處，本文鏈接：https://www.uj5u.com/qita/175089.html
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