pqpo / smartcropper Goto Github PK

作者有什么好的思路吗。谢谢

Build command failed.

Error while executing process D:\AndroidSDK\sdk\cmake\3.6.4111459\bin\cmake.exe with arguments {-HD:\android_pro\internet\SmartCropper-master\smartcropperlib -BD:\android_pro\internet\SmartCropper-master\smartcropperlib.externalNativeBuild\cmake\release\armeabi -GAndroid Gradle - Ninja -DANDROID_ABI=armeabi -DANDROID_NDK=D:\AndroidSDK\sdk\ndk-bundle -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=D:\android_pro\internet\SmartCropper-master\smartcropperlib\build\intermediates\cmake\release\obj\armeabi -DCMAKE_BUILD_TYPE=Release -DCMAKE_MAKE_PROGRAM=D:\AndroidSDK\sdk\cmake\3.6.4111459\bin\ninja.exe -DCMAKE_TOOLCHAIN_FILE=D:\AndroidSDK\sdk\ndk-bundle\build\cmake\android.toolchain.cmake -DANDROID_PLATFORM=android-14 -DCMAKE_CXX_FLAGS=-std=c++11 -frtti -fexceptions -lz}

(include) CMakeLists.txt

想要自己去编译一下 .so文件

应该是缺少so文件吧，我看着只有armeabi的so文件

拍一张纸，四个点没有在纸的四周，而是没有规则的显示在上面，需要手动的把它们拉倒四周，请问这个怎样去优化？

你好，这个是支持7.0的吗？

裁剪后返回图片为什么要过一会才显示出来图片

Also thank you for the notes... :)

Do you know why it is not possible to enable 'x86' ABIs ?
I am compiling under Mac OS

希望能够增加：增加亮度、锐化、转换为灰度等基本的图像增强功能，因为扫描得到的文稿除了需要裁剪，有时候不清晰或者偏暗、反光等需要基本的处理，虽然OepnCV中能够实现，但是不熟悉，希望能够继承到这个包中。

Build command failed.
Error while executing process /opt/android-sdk/cmake/3.6.4111459/bin/cmake with arguments {--build /home/codersun/wellsignAS/smartcropperlib/.externalNativeBuild/cmake/debug/x86 --target smart_cropper}
[1/4] Building CXX object CMakeFiles/smart_cropper.dir/src/main/cpp/Scanner.cpp.o
[2/4] Building CXX object CMakeFiles/smart_cropper.dir/src/main/cpp/smart_cropper.cpp.o
[3/4] Building CXX object CMakeFiles/smart_cropper.dir/src/main/cpp/android_utils.cpp.o
clang++: warning: -lz: 'linker' input unused [-Wunused-command-line-argument]
clang++: warning: -lz: 'linker' input unused [-Wunused-command-line-argument]
clang++: warning: -lz: 'linker' input unused [-Wunused-command-line-argument]
[4/4] Linking CXX shared library ../../../../build/intermediates/cmake/debug/obj/x86/libsmart_cropper.so
FAILED: : && /home/codersun/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ --target=i686-none-linux-android --gcc-toolchain=/home/codersun/Android/Sdk/ndk-bundle/toolchains/x86-4.9/prebuilt/linux-x86_64 --sysroot=/home/codersun/Android/Sdk/ndk-bundle/sysroot -fPIC -isystem /home/codersun/Android/Sdk/ndk-bundle/sysroot/usr/include/i686-linux-android -D__ANDROID_API__=14 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -mstackrealign -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -std=c++11 -frtti -fexceptions -lz -O0 -fno-limit-debug-info -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libatomic.a -nostdlib++ --sysroot /home/codersun/Android/Sdk/ndk-bundle/platforms/android-14/arch-x86 -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -L/home/codersun/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/x86 -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libsmart_cropper.so -o ../../../../build/intermediates/cmake/debug/obj/x86/libsmart_cropper.so CMakeFiles/smart_cropper.dir/src/main/cpp/Scanner.cpp.o CMakeFiles/smart_cropper.dir/src/main/cpp/smart_cropper.cpp.o CMakeFiles/smart_cropper.dir/src/main/cpp/android_utils.cpp.o ../../../../opencv/lib/x86/libopencv_imgproc.a ../../../../opencv/lib/x86/libopencv_core.a ../../../../opencv/lib/x86/libtbb.a /home/codersun/Android/Sdk/ndk-bundle/platforms/android-14/arch-x86/usr/lib/liblog.so /home/codersun/Android/Sdk/ndk-bundle/platforms/android-14/arch-x86/usr/lib/libjnigraphics.so -latomic -lm "/home/codersun/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/x86/libc++_static.a" "/home/codersun/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/x86/libc++abi.a" "/home/codersun/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/x86/libandroid_support.a" && :
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function cv::resize(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function global constructors keyed to a: error: undefined reference to 'std::ios_base::Init::Init()'
../../../../opencv/lib/x86/libopencv_imgproc.a(imgwarp.cpp.o):/home/reports/.ccache/tmp/imgwarp.tmp.tegra-server.21155.ii:function global constructors keyed to a: error: undefined reference to 'std::ios_base::Init::~Init()'
../../../../opencv/lib/x86/libopencv_imgproc.a(smooth.cpp.o):/home/reports/.ccache/tmp/smooth.tmp.tegra-server.21209.ii:function std::vector<double, std::allocator >::_M_fill_insert(__gnu_cxx::__normal_iterator<double*, std::vector<double, std::allocator > >, unsigned int, double const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../opencv/lib/x86/libopencv_imgproc.a(smooth.cpp.o):/home/reports/.ccache/tmp/smooth.tmp.tegra-server.21209.ii:function std::vector<int, std::allocator >::_M_fill_insert(__gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator > >, unsigned int, int const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../opencv/lib/x86/libopencv_imgproc.a(smooth.cpp.o):/home/reports/.ccache/tmp/smooth.tmp.tegra-server.21209.ii:function std::vector<float, std::allocator >::_M_fill_insert(__gnu_cxx::__normal_iterator<float*, std::vector<float, std::allocator > >, unsigned int, float const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../opencv/lib/x86/libopencv_imgproc.a(contours.cpp.o):/home/reports/.ccache/tmp/contours.tmp.tegra-server.21229.ii:function std::vector<CvSeqBlock, std::allocator >::_M_fill_insert(__gnu_cxx::__normal_iterator<CvSeqBlock*, std::vector<CvSeqBlock, std::allocator > >, unsigned int, CvSeqBlock const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../opencv/lib/x86/libopencv_imgproc.a(color.cpp.o):/home/reports/.ccache/tmp/color.tmp.tegra-server.21392.ii:function global constructors keyed to a: error: undefined reference to 'std::ios_base::Init::Init()'
../../../../opencv/lib/x86/libopencv_imgproc.a(color.cpp.o):/home/reports/.ccache/tmp/color.tmp.tegra-server.21392.ii:function global constructors keyed to a: error: undefined reference to 'std::ios_base::Init::~Init()'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::Exception::Exception(int, std::string const&, std::string const&, std::string const&, int): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::Exception::Exception(int, std::string const&, std::string const&, std::string const&, int): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::Exception::Exception(int, std::string const&, std::string const&, std::string const&, int): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::Exception::formatMessage(): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::Exception::formatMessage(): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::getBuildInformation(): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::~basic_string()'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::tempfile(char const*): error: undefined reference to 'std::string::assign(char const*, unsigned int)'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::tempfile(char const*): error: undefined reference to 'std::string::_M_leak_hard()'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::tempfile(char const*): error: undefined reference to 'std::string::append(char const*, unsigned int)'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::tempfile(char const*): error: undefined reference to 'std::string::append(char const*, unsigned int)'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::tempfile(char const*): error: undefined reference to 'std::string::assign(char const*, unsigned int)'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::tempfile(char const*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::tempfile(char const*): error: undefined reference to 'std::string::append(char const*, unsigned int)'
../../../../opencv/lib/x86/libopencv_core.a(system.cpp.o):/home/reports/.ccache/tmp/system.tmp.tegra-server.14466.ii:function cv::tempfile(char const*): error: undefined reference to 'std::string::append(char const*, unsigned int)'
../../../../opencv/lib/x86/libopencv_core.a(persistence.cpp.o):/home/reports/.ccache/tmp/persistenc.tmp.tegra-server.20920.ii:function cv::toUtf16(std::string const&): error: undefined reference to 'std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >::_Rep::_S_empty_rep_storage'
../../../../opencv/lib/x86/libopencv_core.a(persistence.cpp.o):/home/reports/.ccache/tmp/persistenc.tmp.tegra-server.20920.ii:function cv::toUtf16(std::string const&): error: undefined reference to 'std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >::basic_string(wchar_t const*, std::allocator<wchar_t> const&)'
../../../../opencv/lib/x86/libopencv_core.a(persistence.cpp.o):/home/reports/.ccache/tmp/persistenc.tmp.tegra-server.20920.ii:function icvClose(CvFileStorage*, std::string*): error: undefined reference to 'std::string::_M_mutate(unsigned int, unsigned int, unsigned int)'
../../../../opencv/lib/x86/libopencv_core.a(persistence.cpp.o):/home/reports/.ccache/tmp/persistenc.tmp.tegra-server.20920.ii:function icvClose(CvFileStorage*, std::string*): error: undefined reference to 'std::string::resize(unsigned int, char)'
../../../../opencv/lib/x86/libopencv_core.a(persistence.cpp.o):/home/reports/.ccache/tmp/persistenc.tmp.tegra-server.20920.ii:function icvClose(CvFileStorage*, std::string*): error: undefined reference to 'std::string::_M_leak_hard()'
../../../../opencv/lib/x86/libopencv_core.a(persistence.cpp.o):/home/reports/.ccache/tmp/persistenc.tmp.tegra-server.20920.ii:function cv::FileStorage::releaseAndGetString(): error: undefined reference to 'std::string::reserve(unsigned int)'
../../../../opencv/lib/x86/libopencv_core.a(persistence.cpp.o):/home/reports/.ccache/tmp/persistenc.tmp.tegra-server.20920.ii:function cv::operator<<(cv::FileStorage&, std::string const&): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../opencv/lib/x86/libopencv_core.a(persistence.cpp.o):/home/reports/.ccache/tmp/persistenc.tmp.tegra-server.20920.ii:function cv::operator<<(cv::FileStorage&, std::string const&): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function cv::gpu::error(char const*, char const*, int, char const*): error: undefined reference to 'std::cerr'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function cv::gpu::error(char const*, char const*, int, char const*): error: undefined reference to 'std::basic_ostream<char, std::char_traits >& std::__ostream_insert<char, std::char_traits >(std::basic_ostream<char, std::char_traits >&, char const*, int)'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function cv::gpu::error(char const*, char const*, int, char const*): error: undefined reference to 'std::basic_ostream<char, std::char_traits >& std::__ostream_insert<char, std::char_traits >(std::basic_ostream<char, std::char_traits >&, char const*, int)'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function cv::gpu::error(char const*, char const*, int, char const*): error: undefined reference to 'std::basic_ios<char, std::char_traits >::clear(std::_Ios_Iostate)'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function cv::gpu::error(char const*, char const*, int, char const*): error: undefined reference to 'std::basic_ostream<char, std::char_traits >& std::__ostream_insert<char, std::char_traits >(std::basic_ostream<char, std::char_traits >&, char const*, int)'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function cv::gpu::error(char const*, char const*, int, char const*): error: undefined reference to 'std::basic_ostream<char, std::char_traits >& std::__ostream_insert<char, std::char_traits >(std::basic_ostream<char, std::char_traits >&, char const*, int)'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function cv::gpu::error(char const*, char const*, int, char const*): error: undefined reference to 'std::basic_ios<char, std::char_traits >::clear(std::_Ios_Iostate)'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function cv::gpu::error(char const*, char const*, int, char const*): error: undefined reference to 'std::basic_ios<char, std::char_traits >::clear(std::_Ios_Iostate)'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function cv::gpu::error(char const*, char const*, int, char const*): error: undefined reference to 'std::basic_ios<char, std::char_traits >::clear(std::_Ios_Iostate)'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function cv::gpu::error(char const*, char const*, int, char const*): error: undefined reference to 'std::ostream::operator<<(int)'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function cv::gpu::error(char const*, char const*, int, char const*): error: undefined reference to 'std::ostream::flush()'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function global constructors keyed to a: error: undefined reference to 'std::ios_base::Init::Init()'
../../../../opencv/lib/x86/libopencv_core.a(gpumat.cpp.o):/home/reports/.ccache/tmp/gpumat.tmp.tegra-server.21044.ii:function global constructors keyed to a: error: undefined reference to 'std::ios_base::Init::~Init()'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::handle_perror(int, char const*): error: undefined reference to 'std::runtime_error::runtime_error(std::string const&)'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::throw_exception_v4(tbb::internal::exception_id): error: undefined reference to 'std::invalid_argument::invalid_argument(std::string const&)'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::throw_exception_v4(tbb::internal::exception_id): error: undefined reference to 'std::out_of_range::out_of_range(std::string const&)'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::throw_exception_v4(tbb::internal::exception_id): error: undefined reference to 'std::range_error::range_error(std::string const&)'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::throw_exception_v4(tbb::internal::exception_id): error: undefined reference to 'std::range_error::range_error(std::string const&)'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::throw_exception_v4(tbb::internal::exception_id): error: undefined reference to 'std::runtime_error::runtime_error(std::string const&)'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::throw_exception_v4(tbb::internal::exception_id): error: undefined reference to 'std::runtime_error::runtime_error(std::string const&)'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::throw_exception_v4(tbb::internal::exception_id): error: undefined reference to 'std::runtime_error::runtime_error(std::string const&)'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::throw_exception_v4(tbb::internal::exception_id): error: undefined reference to 'std::out_of_range::out_of_range(std::string const&)'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::throw_exception_v4(tbb::internal::exception_id): error: undefined reference to 'std::out_of_range::out_of_range(std::string const&)'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::throw_exception_v4(tbb::internal::exception_id): error: undefined reference to 'std::invalid_argument::invalid_argument(std::string const&)'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::throw_exception_v4(tbb::internal::exception_id): error: undefined reference to 'std::length_error::length_error(std::string const&)'
../../../../opencv/lib/x86/libtbb.a(tbb_misc.cpp.o):/home/reports/.ccache/tmp/tbb_misc.tmp.tegra-server.14427.ii:function tbb::internal::throw_exception_v4(tbb::internal::exception_id): error: undefined reference to 'std::out_of_range::out_of_range(std::string const&)'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

向麻烦问一下，这是什么问题。。。。一直解决不了。。。谢谢了

选中了裁剪区域 但是四个点是错误的（例如 左上的点 在右下） 裁剪出来的图片是旋转的

• What went wrong:
  Execution failed for task ':smartcropperlib:externalNativeBuildRelease'.

Build command failed.
Error while executing process /sdk/cmake/3.6.4111459/bin/cmake with arguments {--build /SmartCropper/smartcropperlib/.externalNativeBuild/cmake/release/x86 --target smart_cropper}
[1/1] Linking CXX shared library
SmartCropper/jniLibs/x86/libsmart_cropper.so

在试编译x86时 出现了这个异常，请问如何解决？

本身800kb的图片裁剪以后可以增大到2M

错误如下：
Warning:warning: -lz: 'linker' input unused [-Wunused-command-line-argument]
Warning:warning: -lz: 'linker' input unused [-Wunused-command-line-argument]
Warning:warning: -lz: 'linker' input unused [-Wunused-command-line-argument]
Error:error: undefined reference to 'tbb::task_scheduler_init::terminate()'
Error:error: undefined reference to 'tbb::task_scheduler_init::initialize(int, unsigned int)'
Error:error: linker command failed with exit code 1 (use -v to see invocation)

请问该怎么解决？

出现了这个错误是为什么？

Error:A problem occurred configuring project ':app'.

Could not resolve all dependencies for configuration ':app:_debugApk'.
A problem occurred configuring project ':smartcropperlib'.
> java.lang.NullPointerException (no error message)

Please add support for 'x86', 'x86_64', 'armeabi', 'armeabi-v7a', 'arm64-v8a', 'mips', 'mips64' all this abi's supported by android. or tell me way how I can add them.

Unsatisfied link error

Whew i click photo from camera & pick image from gallery then all point set to four corner, not image between or other image area,

Like want :=>

Not Like :=>

Please help, Thanks.

原本想通过 cropImageView.setCropPoints(null); 来取消裁剪框对的，但是代码里面进行判定了如果 传入的为null，就会截取整个图片。 我想自己控制裁剪框的出现机制，随时设置裁剪框的可见性。谢谢了

拖动右下角的识别点到左上角的识别点，差不多重叠时整个识别区域消失，识别点也消失

2. 接入步骤中 compile 'com.github.pqpo:SmartCropper:V1.1.0@aar' 应该为
   compile 'com.github.pqpo:SmartCropper:v1.1.0@aar'

Error:(28, 13) Failed to resolve: com.github.pqpo:SmartCropper:v1.1.3
Show in File
Show in Project Structure dialog

我用的AndroidStudio版本是3.0.1 ,gradle是4.1-alll , classpath 'com.android.tools.build:gradle:3.0.1'

现在arm64-v8a 机型很多，可否提供 对应SmartCropper lib的so文件

可以固定四个角不向相反的方向拉吗？，图片会出现反的问题

在setImageToCrop方法中报错如下
java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/haiyun.haiyunyihao-1/base.apk"],nativeLibraryDirectories=[/data/app/haiyun.haiyunyihao-1/lib/arm64, /data/app/haiyun.haiyunyihao-1/base.apk!/lib/arm64-v8a, /system/lib64, /vendor/lib64, /system/vendor/lib64, /product/lib64]]] couldn't find "libsmart_cropper.so"

我试了下android7.0 不兼容

对于浅色背景 黑色的物体（手机等）容易反光的，识别区域成了放光的区域

Hi, Thanks for the great library. I've download and ran the demo app and could successfully run the app the get the expected result without any crashes. But as you mentioned in the Readme file, borders are not identified for a document or business card in the image. Can you please fix this in code? It would a great help if you fix this in next release.

CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage

我在lib 下新建了 aem64-v8a 还是不行，没接触过jni，希望大神能帮忙解决一下，谢谢了

If the manifest file in the app has label and allowBack, the library doesn't get added as we need to override it.
tools:replace="android:allowBackup, android:label"
Removing this in the library could make it easier to use.

我运行demo，最终的效果和你gif里展示的效果相差太大，我对书本拍照后，边界检测完全不对，一个点都没对上

App is working fine but after clicking an image, it sometimes identifies borders and sometimes it doesn't. Please tell me more about the tech you are using and how it can always detect borders in the image.

你好，我用你的代码在编译的时候报TBB错，这个该怎么解决呐？

错误信息如下：
Error while executing process E:\sens\android\sdk\cmake\3.6.4111459\bin\cmake.exe with arguments {--build G:\android\projects\demo\SmartCropper\smartcropperlib\.externalNativeBuild\cmake\release\armeabi-v7a --target smart_cropper} [1/1] Linking CXX shared library ..\..\..\..\build\intermediates\cmake\release\obj\armeabi-v7a\libsmart_cropper.so FAILED: cmd.exe /C "cd . && E:\sens\android\sdk\ndk-bundle\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=armv7-none-linux-androideabi --gcc-toolchain=E:/sens/android/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64 --sysroot=E:/sens/android/sdk/ndk-bundle/sysroot -fPIC -isystem E:/sens/android/sdk/ndk-bundle/sysroot/usr/include/arm-linux-androideabi -D__ANDROID_API__=16 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -fno-integrated-as -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -frtti -fexceptions -lz -Os -DNDEBUG -Wl,--exclude-libs,libgcc.a --sysroot E:/sens/android/sdk/ndk-bundle/platforms/android-16/arch-arm -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libsmart_cropper.so -o ..\..\..\..\build\intermediates\cmake\release\obj\armeabi-v7a\libsmart_cropper.so CMakeFiles/smart_cropper.dir/src/main/cpp/Scanner.cpp.o CMakeFiles/smart_cropper.dir/src/main/cpp/smart_cropper.cpp.o CMakeFiles/smart_cropper.dir/src/main/cpp/android_utils.cpp.o ../../../../opencv/lib/armeabi-v7a/libopencv_imgproc.a ../../../../opencv/lib/armeabi-v7a/libopencv_core.a -llog -ljnigraphics -lm "E:/sens/android/sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi-v7a/libgnustl_static.a" && cd ." ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function tbb::interface7::internal::start_for<tbb::blocked_range<int>, (anonymous namespace)::ProxyLoopBody, tbb::auto_partitioner const>::~start_for(): error: undefined reference to 'vtable for tbb::task' E:/sens/android/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin\ld: the vtable symbol may be undefined because the class is missing its key function (see go/missingkeymethod) ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function tbb::interface7::internal::flag_task::~flag_task(): error: undefined reference to 'vtable for tbb::task' E:/sens/android/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin\ld: the vtable symbol may be undefined because the class is missing its key function (see go/missingkeymethod) ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function tbb::task_scheduler_init::~task_scheduler_init(): error: undefined reference to 'tbb::task_scheduler_init::terminate()' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function tbb::interface7::internal::flag_task::~flag_task(): error: undefined reference to 'vtable for tbb::task' E:/sens/android/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin\ld: the vtable symbol may be undefined because the class is missing its key function (see go/missingkeymethod) ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function tbb::interface7::internal::start_for<tbb::blocked_range<int>, (anonymous namespace)::ProxyLoopBody, tbb::auto_partitioner const>::~start_for(): error: undefined reference to 'vtable for tbb::task' E:/sens/android/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin\ld: the vtable symbol may be undefined because the class is missing its key function (see go/missingkeymethod) ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function cv::parallel_for_(cv::Range const&, cv::ParallelLoopBody const&, double): error: undefined reference to 'tbb::task_group_context::init()' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function cv::parallel_for_(cv::Range const&, cv::ParallelLoopBody const&, double): error: undefined reference to 'tbb::internal::allocate_root_with_context_proxy::allocate(unsigned int) const' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function cv::parallel_for_(cv::Range const&, cv::ParallelLoopBody const&, double): error: undefined reference to 'tbb::internal::get_initial_auto_partitioner_divisor()' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function cv::parallel_for_(cv::Range const&, cv::ParallelLoopBody const&, double): error: undefined reference to 'tbb::task_group_context::~task_group_context()' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function cv::parallel_for_(cv::Range const&, cv::ParallelLoopBody const&, double): error: undefined reference to 'tbb::task_group_context::~task_group_context()' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function cv::parallel_for_(cv::Range const&, cv::ParallelLoopBody const&, double): error: undefined reference to 'tbb::internal::allocate_root_with_context_proxy::free(tbb::task&) const' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function cv::getNumThreads(): error: undefined reference to 'tbb::task_scheduler_init::default_num_threads()' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function cv::setNumThreads(int): error: undefined reference to 'tbb::task_scheduler_init::terminate()' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function cv::setNumThreads(int): error: undefined reference to 'tbb::task_scheduler_init::initialize(int)' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function tbb::interface7::internal::start_for<tbb::blocked_range<int>, (anonymous namespace)::ProxyLoopBody, tbb::auto_partitioner const>::execute(): error: undefined reference to 'tbb::internal::allocate_continuation_proxy::allocate(unsigned int) const' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function tbb::interface7::internal::start_for<tbb::blocked_range<int>, (anonymous namespace)::ProxyLoopBody, tbb::auto_partitioner const>::execute(): error: undefined reference to 'tbb::internal::allocate_child_proxy::allocate(unsigned int) const' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function tbb::interface7::internal::start_for<tbb::blocked_range<int>, (anonymous namespace)::ProxyLoopBody, tbb::auto_partitioner const>::execute(): error: undefined reference to 'tbb::task_group_context::is_group_execution_cancelled() const' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function tbb::interface7::internal::start_for<tbb::blocked_range<int>, (anonymous namespace)::ProxyLoopBody, tbb::auto_partitioner const>::execute(): error: undefined reference to 'tbb::internal::allocate_continuation_proxy::allocate(unsigned int) const' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function tbb::interface7::internal::start_for<tbb::blocked_range<int>, (anonymous namespace)::ProxyLoopBody, tbb::auto_partitioner const>::execute(): error: undefined reference to 'tbb::internal::allocate_child_proxy::allocate(unsigned int) const' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:function _GLOBAL__sub_I_parallel.cpp: error: undefined reference to 'tbb::task_scheduler_init::initialize(int, unsigned int)' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:vtable for tbb::interface7::internal::flag_task: error: undefined reference to 'tbb::task::note_affinity(unsigned short)' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:typeinfo for tbb::interface7::internal::flag_task: error: undefined reference to 'typeinfo for tbb::task' ../../../../opencv/lib/armeabi-v7a/libopencv_core.a(parallel.cpp.o):parallel.cpp:typeinfo for tbb::interface7::internal::start_for<tbb::blocked_range<int>, (anonymous namespace)::ProxyLoopBody, tbb::auto_partitioner const>: error: undefined reference to 'typeinfo for tbb::task' clang++.exe: error: linker command failed with exit code 1 (use -v to see invocation) ninja: build stopped: subcommand failed.

我看到了你的一个帖子： https://www.v2ex.com/t/381107
已知四个点的坐标A(x1, y1) B(x2, y2) C(x3, y3) D(x4, y4) ，如何确定这四个点分别为 左上，右上，右下，左下。
我想到了凸四边形的解决方案：

1. 连接对角线（假设ABCD是依次的4个点，直接连接AC、BD就能得到交点了），就能获取到对角线交点坐标，假设是P(x0, y0)
2. 分别判断四个点与P点的关系，如果xi<=x0&yi<y0 就是左上角； xi<x0&yi>y0就是左下角；xi>=x0&yi>y0就是右下角; xi>x0&yi<y0就是右上角；

备注：如果ABCD不确定是依次的4个点，那么交点要么是连接AC、BD，要么就是连接AB、CD。两条直线如果平行（例如AC、BD平行），那么就是另外一种情况必然是相交的两条线（就直接取AB、CD的交点）；如果均不平行，就判断相交的点是否在四边形内，在四边形内的就是交点

Build command failed.
Error while executing process D:\AndroidSDK\sdk\cmake\3.6.4111459\bin\cmake.exe with arguments {--build D:\android_pro\internet\SmartCropper-master\smartcropperlib.externalNativeBuild\cmake\debug\armeabi-v7a --target smart_cropper}
[1/4] Building CXX object CMakeFiles/smart_cropper.dir/src/main/cpp/smart_cropper.cpp.o
[2/4] Building CXX object CMakeFiles/smart_cropper.dir/src/main/cpp/android_utils.cpp.o
[3/4] Building CXX object CMakeFiles/smart_cropper.dir/src/main/cpp/Scanner.cpp.o
FAILED: D:\AndroidSDK\sdk\ndk-bundle\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=armv7-none-linux-androideabi --gcc-toolchain=D:/AndroidSDK/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64 --sysroot=D:/AndroidSDK/sdk/ndk-bundle/sysroot -Dsmart_cropper_EXPORTS -I../../../../opencv/include -I../../../../src/main/cpp/include -isystem D:/AndroidSDK/sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/include -isystem D:/AndroidSDK/sdk/ndk-bundle/sources/android/support/include -isystem D:/AndroidSDK/sdk/ndk-bundle/sources/cxx-stl/llvm-libc++abi/include -isystem D:/AndroidSDK/sdk/ndk-bundle/sysroot/usr/include/arm-linux-androideabi -D__ANDROID_API__=14 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -std=c++11 -frtti -fexceptions -lz -O0 -fno-limit-debug-info -fPIC -MD -MT CMakeFiles/smart_cropper.dir/src/main/cpp/smart_cropper.cpp.o -MF CMakeFiles\smart_cropper.dir\src\main\cpp\smart_cropper.cpp.o.d -o CMakeFiles/smart_cropper.dir/src/main/cpp/smart_cropper.cpp.o -c D:\android_pro\internet\SmartCropper-master\smartcropperlib\src\main\cpp\smart_cropper.cpp
clang++.exe: warning: -lz: 'linker' input unused [-Wunused-command-line-argument]
In file included from D:\android_pro\internet\SmartCropper-master\smartcropperlib\src\main\cpp\smart_cropper.cpp:6:
In file included from ../../../../src/main/cpp/include\android_utils.h:9:
In file included from ../../../../opencv/include\opencv2/opencv.hpp:47:
In file included from ../../../../opencv/include\opencv2/core/core.hpp:4883:
../../../../opencv/include\opencv2/core/operations.hpp:74:16: fatal error: 'ext/atomicity.h' file not found
#include <ext/atomicity.h>
^~~~~~~~~~~~~~~~~
1 error generated.
FAILED: D:\AndroidSDK\sdk\ndk-bundle\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=armv7-none-linux-androideabi --gcc-toolchain=D:/AndroidSDK/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64 --sysroot=D:/AndroidSDK/sdk/ndk-bundle/sysroot -Dsmart_cropper_EXPORTS -I../../../../opencv/include -I../../../../src/main/cpp/include -isystem D:/AndroidSDK/sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/include -isystem D:/AndroidSDK/sdk/ndk-bundle/sources/android/support/include -isystem D:/AndroidSDK/sdk/ndk-bundle/sources/cxx-stl/llvm-libc++abi/include -isystem D:/AndroidSDK/sdk/ndk-bundle/sysroot/usr/include/arm-linux-androideabi -D__ANDROID_API__=14 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -std=c++11 -frtti -fexceptions -lz -O0 -fno-limit-debug-info -fPIC -MD -MT CMakeFiles/smart_cropper.dir/src/main/cpp/android_utils.cpp.o -MF CMakeFiles\smart_cropper.dir\src\main\cpp\android_utils.cpp.o.d -o CMakeFiles/smart_cropper.dir/src/main/cpp/android_utils.cpp.o -c D:\android_pro\internet\SmartCropper-master\smartcropperlib\src\main\cpp\android_utils.cpp
clang++.exe: warning: -lz: 'linker' input unused [-Wunused-command-line-argument]
In file included from D:\android_pro\internet\SmartCropper-master\smartcropperlib\src\main\cpp\android_utils.cpp:4:
In file included from ../../../../src/main/cpp/include\android_utils.h:9:
In file included from ../../../../opencv/include\opencv2/opencv.hpp:47:
In file included from ../../../../opencv/include\opencv2/core/core.hpp:4883:
../../../../opencv/include\opencv2/core/operations.hpp:74:16: fatal error: 'ext/atomicity.h' file not found
#include <ext/atomicity.h>
^~~~~~~~~~~~~~~~~
1 error generated.
FAILED: D:\AndroidSDK\sdk\ndk-bundle\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=armv7-none-linux-androideabi --gcc-toolchain=D:/AndroidSDK/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64 --sysroot=D:/AndroidSDK/sdk/ndk-bundle/sysroot -Dsmart_cropper_EXPORTS -I../../../../opencv/include -I../../../../src/main/cpp/include -isystem D:/AndroidSDK/sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/include -isystem D:/AndroidSDK/sdk/ndk-bundle/sources/android/support/include -isystem D:/AndroidSDK/sdk/ndk-bundle/sources/cxx-stl/llvm-libc++abi/include -isystem D:/AndroidSDK/sdk/ndk-bundle/sysroot/usr/include/arm-linux-androideabi -D__ANDROID_API__=14 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -std=c++11 -frtti -fexceptions -lz -O0 -fno-limit-debug-info -fPIC -MD -MT CMakeFiles/smart_cropper.dir/src/main/cpp/Scanner.cpp.o -MF CMakeFiles\smart_cropper.dir\src\main\cpp\Scanner.cpp.o.d -o CMakeFiles/smart_cropper.dir/src/main/cpp/Scanner.cpp.o -c D:\android_pro\internet\SmartCropper-master\smartcropperlib\src\main\cpp\Scanner.cpp
clang++.exe: warning: -lz: 'linker' input unused [-Wunused-command-line-argument]
In file included from D:\android_pro\internet\SmartCropper-master\smartcropperlib\src\main\cpp\Scanner.cpp:4:
In file included from ../../../../src/main/cpp/include\Scanner.h:8:
In file included from ../../../../opencv/include\opencv2/opencv.hpp:47:
In file included from ../../../../opencv/include\opencv2/core/core.hpp:4883:
../../../../opencv/include\opencv2/core/operations.hpp:74:16: fatal error: 'ext/atomicity.h' file not found
#include <ext/atomicity.h>
^~~~~~~~~~~~~~~~~
1 error generated.
ninja: build stopped: subcommand failed.

比如说横屏拍照，照片竖着，截出来也是竖屏，但是我需要横屏显示，这个怎么解决下呢？

这个库引用不了，还是我的姿势不对？

Android 7.0 版本，点击确定后，photofile.exist()打印出来为false
但是在6.0版本中打印出来是true

我在根目录添加了libs-->armeabi--->libsmart_cropper.so

在1.1.3版本里面限制了凸四边形。图片存在自动识别出的 四边形是凹的情况下，突出的点将不能被拖拽，除非其他点被拖拽了