我最近写了一个代码来加载TIFF图像（使用libtiff）并用opencv显示它（我知道opencv可以读取tiff，但我需要读取它以获得更低级别的控制）。
当我刚用libtiff阅读TIFF并编译它时。没关系。编译命令如下：
g++ -L /usr/local/lib/ -I /usr/local/include/ -ltiff libtiff_test.cpp -o libtiff_test
然而，当我把它们（OpenCV和Libtiff）放在一起时，会出现问题。编译命令如下：
g++ -L /usr/local/lib/ -I /usr/local/include/ -ltiff -lopencv_core -lopencv_highgui -lopencv_imgcodecs libtiff_test.cpp -o libtiff_test
编译器报告：架构x86_64的未定义符号。
The detailed information is as below(longer):
Undefined symbols for architecture x86_64:
"ThermalImage::grfmt_tiff_err_handler_init", referenced from:
ThermalImage::ThermalImage(char*) in ThermalImage-6b82a6.o
"_cblas_cgemm", referenced from:
lapack_gemm32fc(float const*, unsigned long, float const*, unsigned long, float, float const*, unsigned long, float, float*, unsigned long, int, int, int, int) in libopencv_core.a(hal_internal.cpp.o)
lapack_gemm64fc(double const*, unsigned long, double const*, unsigned long, double, double const*, unsigned long, double, double*, unsigned long, int, int, int, int) in libopencv_core.a(hal_internal.cpp.o)
"_cblas_dgemm", referenced from:
lapack_gemm64f(double const*, unsigned long, double const*, unsigned long, double, double const*, unsigned long, double, double*, unsigned long, int, int, int, int) in libopencv_core.a(hal_internal.cpp.o)
"_cblas_sgemm", referenced from:
lapack_gemm32f(float const*, unsigned long, float const*, unsigned long, float, float const*, unsigned long, float, float*, unsigned long, int, int, int, int) in libopencv_core.a(hal_internal.cpp.o)
lapack_gemm64f(double const*, unsigned long, double const*, unsigned long, double, double const*, unsigned long, double, double*, unsigned long, int, int, int, int) in libopencv_core.a(hal_internal.cpp.o)
"_cblas_zgemm", referenced from:
lapack_gemm64fc(double const*, unsigned long, double const*, unsigned long, double, double const*, unsigned long, double, double*, unsigned long, int, int, int, int) in libopencv_core.a(hal_internal.cpp.o)
"_clBuildProgram", referenced from:
cv::ocl::Program::Impl::Impl(cv::ocl::ProgramSource const&, cv::String const&, cv::String&) in libopencv_core.a(ocl.cpp.o)
"_clCreateBuffer", referenced from:
cv::ocl::OpenCLAllocator::allocate(cv::UMatData*, int, cv::UMatUsageFlags) const in libopencv_core.a(ocl.cpp.o)
cv::ocl::OpenCLBufferPoolImpl::_allocateBufferEntry(cv::ocl::CLBufferEntry&, unsigned long) in libopencv_core.a(ocl.cpp.o)
cv::ocl::Image2D::Impl::init(cv::UMat const&, bool, bool) in libopencv_core.a(ocl.cpp.o)
"_clCreateCommandQueue", referenced from:
cv::ocl::Queue::Impl::Impl(cv::ocl::Context const&, cv::ocl::Device const&) in libopencv_core.a(ocl.cpp.o)
"_clCreateContext", referenced from:
cv::ocl::Context::Impl::setDefault() in libopencv_core.a(ocl.cpp.o)
cv::ocl::Context::Impl::Impl(int) in libopencv_core.a(ocl.cpp.o)
"_clCreateImage", referenced from:
cv::ocl::Image2D::Impl::init(cv::UMat const&, bool, bool) in libopencv_core.a(ocl.cpp.o)
"_clCreateImage2D", referenced from:
cv::ocl::Image2D::Impl::init(cv::UMat const&, bool, bool) in libopencv_core.a(ocl.cpp.o)
"_clCreateKernel", referenced from:
cv::ocl::Kernel::Impl::Impl(char const*, cv::ocl::Program const&) in libopencv_core.a(ocl.cpp.o)
"_clCreateProgramWithBinary", referenced from:
cv::ocl::Program::Impl::Impl(cv::String const&, cv::String const&) in libopencv_core.a(ocl.cpp.o)
"_clCreateProgramWithSource", referenced from:
cv::ocl::Program::Impl::Impl(cv::ocl::ProgramSource const&, cv::String const&, cv::String&) in libopencv_core.a(ocl.cpp.o)
"_clEnqueueCopyBuffer", referenced from:
cv::ocl::OpenCLAllocator::copy(cv::UMatData*, cv::UMatData*, int, unsigned long const*, unsigned long const*, unsigned long const*, unsigned long const*, unsigned long const*, bool) const in libopencv_core.a(ocl.cpp.o)
"_clEnqueueCopyBufferRect", referenced from:
cv::ocl::OpenCLAllocator::copy(cv::UMatData*, cv::UMatData*, int, unsigned long const*, unsigned long const*, unsigned long const*, unsigned long const*, unsigned long const*, bool) const in libopencv_core.a(ocl.cpp.o)
cv::ocl::Image2D::Impl::init(cv::UMat const&, bool, bool) in libopencv_core.a(ocl.cpp.o)
"_clEnqueueCopyBufferToImage", referenced from:
cv::ocl::Image2D::Impl::init(cv::UMat const&, bool, bool) in libopencv_core.a(ocl.cpp.o)
"_clEnqueueCopyImageToBuffer", referenced from:
cv::ocl::convertFromImage(void*, cv::UMat&) in libopencv_core.a(ocl.cpp.o)
"_clEnqueueMapBuffer", referenced from:
cv::ocl::OpenCLAllocator::deallocate(cv::UMatData*) const in libopencv_core.a(ocl.cpp.o)
cv::ocl::OpenCLAllocator::map(cv::UMatData*, int) const in libopencv_core.a(ocl.cpp.o)
"_clEnqueueNDRangeKernel", referenced from:
cv::ocl::Kernel::run(int, unsigned long*, unsigned long*, bool, cv::ocl::Queue const&) in libopencv_core.a(ocl.cpp.o)
"_clEnqueueReadBuffer", referenced from:
cv::ocl::OpenCLAllocator::deallocate(cv::UMatData*) const in libopencv_core.a(ocl.cpp.o)
cv::ocl::OpenCLAllocator::map(cv::UMatData*, int) const in libopencv_core.a(ocl.cpp.o)
cv::ocl::OpenCLAllocator::download(cv::UMatData*, void*, int, unsigned long const*, unsigned long const*, unsigned long const*, unsigned long const*) const in libopencv_core.a(ocl.cpp.o)
"_clEnqueueReadBufferRect", referenced from:
cv::ocl::OpenCLAllocator::download(cv::UMatData*, void*, int, unsigned long const*, unsigned long const*, unsigned long const*, unsigned long const*) const in libopencv_core.a(ocl.cpp.o)
"_clEnqueueTask", referenced from:
cv::ocl::Kernel::runTask(bool, cv::ocl::Queue const&) in libopencv_core.a(ocl.cpp.o)
"_clEnqueueUnmapMemObject", referenced from:
cv::ocl::OpenCLAllocator::deallocate(cv::UMatData*) const in libopencv_core.a(ocl.cpp.o)
cv::ocl::OpenCLAllocator::unmap(cv::UMatData*) const in libopencv_core.a(ocl.cpp.o)
"_clEnqueueWriteBuffer", referenced from:
cv::ocl::OpenCLAllocator::unmap(cv::UMatData*) const in libopencv_core.a(ocl.cpp.o)
cv::ocl::OpenCLAllocator::upload(cv::UMatData*, void const*, int, unsigned long const*, unsigned long const*, unsigned long const*, unsigned long const*) const in libopencv_core.a(ocl.cpp.o)
"_clEnqueueWriteBufferRect", referenced from:
cv::ocl::OpenCLAllocator::upload(cv::UMatData*, void const*, int, unsigned long const*, unsigned long const*, unsigned long const*, unsigned long const*) const in libopencv_core.a(ocl.cpp.o)
"_clFinish", referenced from:
cv::ocl::Queue::finish() in libopencv_core.a(ocl.cpp.o)
cv::ocl::attachContext(cv::String const&, void*, void*, void*) in libopencv_core.a(ocl.cpp.o)
cv::ocl::Queue::operator=(cv::ocl::Queue const&) in libopencv_core.a(ocl.cpp.o)
cv::ocl::Queue::~Queue() in libopencv_core.a(ocl.cpp.o)
cv::ocl::Queue::create(cv::ocl::Context const&, cv::ocl::Device const&) in libopencv_core.a(ocl.cpp.o)
cv::ocl::Queue::~Queue() in libopencv_core.a(ocl.cpp.o)
cv::ocl::Kernel::run(int, unsigned long*, unsigned long*, bool, cv::ocl::Queue const&) in libopencv_core.a(ocl.cpp.o)
...
"_clFlush", referenced from:
cv::ocl::Image2D::Impl::init(cv::UMat const&, bool, bool) in libopencv_core.a(ocl.cpp.o)
"_clGetDeviceIDs", referenced from:
cv::ocl::Context::Impl::setDefault() in
...
"_ippicvsFlip_64f_I", referenced from:
void cv::sort_<unsigned char>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<signed char>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<unsigned short>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<short>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<int>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<float>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<double>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
...
"_ippicvsFlip_8u_I", referenced from:
void cv::sort_<unsigned char>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<signed char>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<unsigned short>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<short>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<int>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<float>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<double>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
...
"_ippicvsMaxEvery_16u", referenced from:
cv::hal::max16u(unsigned short const*, unsigned long, unsigned short const*, unsigned long, unsigned short*, unsigned long, int, int, void*) in libopencv_core.a(arithm.cpp.o)
"_ippicvsMaxEvery_32f", referenced from:
cv::hal::max32f(float const*, unsigned long, float const*, unsigned long, float*, unsigned long, int, int, void*) in libopencv_core.a(arithm.cpp.o)
"_ippicvsMaxEvery_64f", referenced from:
cv::hal::max64f(double const*, unsigned long, double const*, unsigned long, double*, unsigned long, int, int, void*) in libopencv_core.a(arithm.cpp.o)
"_ippicvsMaxEvery_8u", referenced from:
cv::hal::max8u(unsigned char const*, unsigned long, unsigned char const*, unsigned long, unsigned char*, unsigned long, int, int, void*) in libopencv_core.a(arithm.cpp.o)
"_ippicvsMinEvery_16u", referenced from:
cv::hal::min16u(unsigned short const*, unsigned long, unsigned short const*, unsigned long, unsigned short*, unsigned long, int, int, void*) in libopencv_core.a(arithm.cpp.o)
"_ippicvsMinEvery_32f", referenced from:
cv::hal::min32f(float const*, unsigned long, float const*, unsigned long, float*, unsigned long, int, int, void*) in libopencv_core.a(arithm.cpp.o)
"_ippicvsMinEvery_64f", referenced from:
cv::hal::min64f(double const*, unsigned long, double const*, unsigned long, double*, unsigned long, int, int, void*) in libopencv_core.a(arithm.cpp.o)
"_ippicvsMinEvery_8u", referenced from:
cv::hal::min8u(unsigned char const*, unsigned long, unsigned char const*, unsigned long, unsigned char*, unsigned long, int, int, void*) in libopencv_core.a(arithm.cpp.o)
"_ippicvsSortAscend_8u_I", referenced from:
void cv::sort_<unsigned char>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<signed char>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<unsigned short>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<short>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<int>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<float>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<double>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
...
"_ippicvsSortDescend_8u_I", referenced from:
void cv::sort_<unsigned char>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<signed char>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<unsigned short>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<short>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<int>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<float>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
void cv::sort_<double>(cv::Mat const&, cv::Mat&, int) in libopencv_core.a(matrix.cpp.o)
...
"_sgels_", referenced from:
lapack_QR32f(float*, unsigned long, int, int, int, float*, unsigned long, float*, int*) in libopencv_core.a(hal_internal.cpp.o)
lapack_QR64f(double*, unsigned long, int, int, int, double*, unsigned long, double*, int*) in libopencv_core.a(hal_internal.cpp.o)
"_sgeqrf_", referenced from:
lapack_QR32f(float*, unsigned long, int, int, int, float*, unsigned long, float*, int*) in libopencv_core.a(hal_internal.cpp.o)
lapack_QR64f(double*, unsigned long, int, int, int, double*, unsigned long, double*, int*) in libopencv_core.a(hal_internal.cpp.o)
"_sgesdd_", referenced from:
lapack_SVD32f(float*, unsigned long, float*, float*, unsigned long, float*, unsigned long, int, int, int) in libopencv_core.a(hal_internal.cpp.o)
lapack_SVD64f(double*, unsigned long, double*, double*, unsigned long, double*, unsigned long, int, int, int) in libopencv_core.a(hal_internal.cpp.o)
"_sgesv_", referenced from:
lapack_LU32f(float*, unsigned long, int, float*, unsigned long, int, int*) in libopencv_core.a(hal_internal.cpp.o)
lapack_LU64f(double*, unsigned long, int, double*, unsigned long, int, int*) in libopencv_core.a(hal_internal.cpp.o)
"_sgetrf_", referenced from:
lapack_LU32f(float*, unsigned long, int, float*, unsigned long, int, int*) in libopencv_core.a(hal_internal.cpp.o)
lapack_LU64f(double*, unsigned long, int, double*, unsigned long, int, int*) in libopencv_core.a(hal_internal.cpp.o)
"_sposv_", referenced from:
lapack_Cholesky32f(float*, unsigned long, int, float*, unsigned long, int, bool*) in libopencv_core.a(hal_internal.cpp.o)
lapack_Cholesky64f(double*, unsigned long, int, double*, unsigned long, int, bool*) in libopencv_core.a(hal_internal.cpp.o)
"_spotrf_", referenced from:
lapack_Cholesky32f(float*, unsigned long, int, float*, unsigned long, int, bool*) in libopencv_core.a(hal_internal.cpp.o)
lapack_Cholesky64f(double*, unsigned long, int, double*, unsigned long, int, bool*) in libopencv_core.a(hal_internal.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)
有人可以告诉我如何将这两个库结合在一起吗？谢谢！
答案 0 :(得分：0)
您没有说明您安装的OpenCV版本（即版本2.x或3.x），也没有说明您安装的版本（例如来自源代码，或使用自制程序），也没有说如何构建它，也没有显示任何代码，所以任何答案都只能是通用的。
恕我直言，一般来说，最简单的方法是使用pkgconfig来确定正确的包含文件路径，库路径和库。因此，如果您安装 OpenCV 版本2，使用自制程序，您将执行以下操作以获取包含文件路径和库：
pkg-config --libs --cflags opencv
示例输出
-I/usr/local/include/opencv -I/usr/local/include -L/usr/local/lib \
-lopencv_ml -lopencv_objdetect -lopencv_shape -lopencv_stitching \
-lopencv_superres -lopencv_videostab -lopencv_calib3d \
-lopencv_features2d -lopencv_highgui -lopencv_videoio \
-lopencv_imgcodecs -lopencv_video -lopencv_photo -lopencv_imgproc \
-lopencv_flann -lopencv_core
将它放在你的编译命令中：
g++ ... $(pkg-config --libs --cflags opencv) ...
如果您安装了 OpenCV 3.x ，则可能需要
pkg-config --libs --cflags opencv3
如果您安装了其他方式，则可能需要从源代码转到构建 OpenCV 的位置，然后找到pkgconfig这样的文件：
find . -name \*.pc
然后您可以针对该特定文件运行pkgconfig，如下所示：
pkg-config --libs --cflags $(find . -name \*.pc)
您可以为libtiff应用相同的逻辑。首先，找到pkgconfig用于libtiff的名称，列出所有已知的包并为tif加注：
pkg-config --list-all | grep -i tif
示例输出
libtiff-4 libtiff - Tag Image File Format (TIFF) library.
现在，使用新发现的名称（libtiff-4）来获取标志：
pkg-config --libs --cflags libtiff-4
示例输出
-I/usr/local/Cellar/libtiff/4.0.8/include \
-L/usr/local/Cellar/libtiff/4.0.8/lib -ltiff