undefined reference to cv::imshow

Note that your clean recipe attempts to delete a file, core, that is never created by your Makefile. So, I should add LIBS += *.dll.a? Right click -> properties; 2. Where is it documented? In your particular I'd recommend replacing OPENCV_LIBS with OpenCV_LIBRARIES and trying again. 1 Answer Sorted by: 2 problem1: you will have to include opencv / c++ header files to make it work: #include "opencv2/core/core.hpp" #include "opencv2/imgproc/imgproc.hpp" #include "opencv2/highgui/highgui.hpp" #using namespace cv; #include <iostream> #using namespace std; int main () { . I doubt very much that ${OPENCV_LIBS} is the correct name of the variable which contains the OpenCV libraries. opencvundefined reference to cv::imread(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int)' I get this error , please give me a help. Thank you! Use the caffe-users list instead. 1 I know this has been asked several times but still I am struggling with linker error undefined reference for simple opencv code. $(pkg-config ), as there is no such GNU Make function. You signed in with another tab or window. b . Asking for help, clarification, or responding to other answers. "Am I missing anything" - yes. Solution I was having trouble linking the example code by hand using g++ CLI instead of the top level make in the installation directory. OpenCV 3.1 Upgrade Leads to Linker Errors on Linux, Linking error while compiling sample of OpenCV, OpenCV undefined reference to `cv::imread(cv::String const&, int)'. https://github.com/BVLC/caffe/blob/master/CONTRIBUTING.md, An error in convert_imageset_and_disparity.cpp, CMU-Perceptual-Computing-Lab/caffe_train#16. Books that explain fundamental chess concepts. It is not. The solution is to build opencv with debug mode. I have Cuda7.5 and CuDNN V4 on Ubuntu 15.10 64bit. It is not used, so make uses the default rule for building executables from .cpp files, which does not use the LIBS variable (only CFLAGS). I have Python 3 and OpenCV3 (for Python) Installed! Making statements based on opinion; back them up with references or personal experience. g++ -L"C:\opencv\build\x64\vc11\lib" -L"C:\opencv\build\x64\vc11\staticlib" -o "Test.exe" ./ShowImage.o -lopencv_highgui300 -lopencv_highgui300d -lopencv_core300 -lopencv_core300d -lopencv_imgcodecs300 -lopencv_imgcodecs300d To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Would it be possible, given current technology, ten years, and an infinite amount of money, to construct a 7,000 foot (2200 meter) aircraft carrier? Besides the stuff created by default, the code is #include <opencv/cv.h> #include <opencv/highgui.h> (.) Sign in Ready to optimize your JavaScript with Rust? Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, undefined reference cv::imread(std::string const&, int), c++ linker error: undefined references only on optimized build. Connect and share knowledge within a single location that is structured and easy to search. I'm using ROS MELODIC on Ubuntu 18.04, Kernel 4.18.0-25. Also, what does stub libs mean? AR -o .build_release/lib/libcaffe.a g++ -o simple main.cpp $ (pkg-config opencv4 --libs --cflags) my Makefile is below assigns the output of the command to the Make variable OPENCV. though you correctly tried to add opencv_imgcodecs300.lib - it was made for a different compiler. As for project setup with respect to OpenCV in Tools -> Options -> C/C++ -> Code Assistance -> C++ Compiler -> Include Directories I have C:\CCompiler\OpenCV2.3\include In the project's properties I have: Build -> C++ Compiler -> Include Directories ../../../../../CCompiler/OpenCV2.3/include Additional Options '-Wl,--add-stdcall-alias' cmake .. /cygdrive/d/Gateway_Firmware/ImProcessing_WS/Test/Debug/../ShowImage.cpp:12:(.text+0x44): relocation truncated to fit: R_X86_64_PC32 against undefined symbol `cv::imread(cv::String const&, int)'. Already on GitHub? Can a prospective pilot be negated their certification because of too big/small hands? Thanks. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Are there breakers which can be triggered by an external signal and have to be reset by hand? This topic has been deleted. i want to compile opencv4.0 with Makefile but undefined reference error occur. In your question, a tab character is missing. Click apply and now you are able to run the project. The name of Opencv configuration file is opencv.pc. Have a question about this project? PKG_CONFIG_PATH=/home/opencv/build/unix-install OR wherever the configuration of your opencv is. How can I use a VPN to access a Russian website that is banned in the EU? Your Makefile isn't working because it isn't producing the same command as when you run. no, your linker just stops complaining after the 1st error. std: main comment@PaulEvans 1 2 a. Any help will be greatly appreciated. Building file: ../ShowImage.cpp But still getting linker error for imread, imshow, waitkey as mentioned. I have Python 3 and OpenCV3 (for Python) Installed! Asking for help, clarification, or responding to other answers. I know this has been asked several times but still I am struggling with linker error undefined reference for simple opencv code. IF it built a test.exe, it must be a different problem, now, -- which is ? Well occasionally send you account related emails. undefined reference to `cv::imshow(std::string const&, cv::_InputArray const&) undefined reference to `cv::imread(std::string const&, int)' In addition, the opencv version is 4.2.0, and i used it in the CMakeLists.txt file as: find_package(OpenCV 4 REQUIRED) target_link_libraries(${PROJECT_NAME} nvcc warning : The 'compute_20', 'sm_20', and 'sm_21' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). Uncomment the following line in Makfile.config The default OpenCV version is now 4.2 and it is giving a lot of compilation errors. So $(pkg-config opencv4 --libs --cflags) expands to nothing. The thing is that in my case is I am using OpenCV 2.7 This helps developers maintain a clear, uncluttered, and efficient view of the state of Caffe. There don't appear to be any find_package(..) statements in your CMakeLists.txt that are related to these variables. In anticipation of writing more professional projects where N is large, you expansion of a shell command OPENCV. That is what Florian is also telling you in his answer. The string pkg-config opencv4 --libs --cflags is not a Make variable that has a value (obviously). clang: error: linker command failed with exit code 1 (use -v to see invocation) undefined reference to `cv::imread (std::string const&, int)' in opencv Accelerated Computing CUDA CUDA Programming and Performance Mohamed_cmc March 21, 2017, 7:39am #1 hello everyone i am using opencv with cuda 6.5 , when i try to compile this code: cv::Mat image= cv::imread ("pic.jpg"); cv::namedWindow ("Test picture"); cv::imshow ("Test picture", image); cv::waitKey (1000); (.) If he had met some scary fish, he would immediately return to the surface, Received a 'behavior reminder' from manager. berak (May 20 '15) edit I have tried using absolute path but still it is taking the image as an empty matrix. Invoking: Cygwin C++ Compiler Add the following line to your ~/.bashrc yes, i think, you should use dll.a instead of dll. i can compile simple '.cpp' files, but i want to compile '.cpp' files that included 'opencv' api and i referenced Makefile from [. 2018-12-07 04:24:25 -0500, Video On Label OpenCV Qt :: hide cvNamedWindows, build problems for android_binary_package - Eclipse Indigo, Ubuntu 12.04, Can't compile .cu file when including opencv.hpp, Using OpenCV's stitching module, strange error when compositing images, compile error in opencv2/flann/lsh_table.h when compiling bgslibrary, undefined reference to `cv::imshow(cv::String const&, cv::_InputArray const&)' with QT5.8, Creative Commons Attribution Share Alike 3.0. answered How is the merkle root verified if the mempools may be different? This part of your makefile is likely broken: It looks like a leading tab character is missing on the second line. In case that someone has the same problem, here is the solution: If mexcuda has trouble locating the NVIDIA compiler (nvcc), it might be installed in a non-default location. Did the apostolic or early church fathers acknowledge Papal infallibility? Finished building: ../ShowImage.cpp, Building target: Test.exe Asked: make: *** [.build_release/lib/libcaffe.so.1.0.0-rc5] Error 1. Especially, imread() have successfully loaded the image, which means some functions do work. Are you sure you copied that exactly? at least, in the GNU Make manual. Sign in . mkdir build If you see the "cross", you're on the right track. Later downloaded CMake and installed it and added its path too. Are the S&P 500 and Dow Jones Industrial Average securities? @xmfbit Hello! make clean @berak Thanks for the insight on problem. Thank you! source files in $(SRCS) whenever you change even 1 of them. to your account. 2018-12-13 02:53:38 -0500. E-learn.cn | ICP2021010369-1 | ICP2021010369-1 !!! Please start posting anonymously - your entry will be published after you log in or create a new account. Is it appropriate to ignore emails from a student asking obvious questions? From https://github.com/BVLC/caffe/blob/master/CONTRIBUTING.md: Please do not post usage, installation, or modeling questions, or other requests for help to Issues. try an absolute path, like "c:/my/files/img.png" and add a check after imread, like if (img.empty ()) . What's the \synctex primitive? They are unnecessary and take up a lot of space. Central limit theorem replacing radical n with n, I want to be able to quit Finder but can't edit Finder's Info.plist after disabling SIP, Is it illegal to use resources in a University lab to prove a concept could work (to ultimately use to create a startup). I have added the opencv library path, it did not work. How could my characters be tricked into thinking they are on Mars? @monajalal Hello! cd caffe-master stdstdvscode. i want to compile opencv4.0 with Makefile but undefined reference error occur. I hope I could help you! 19 comments commented on Apr 26, 2017 mentioned this issue Compilation error (cv:VideoCapture) #431 Closed Sign up for free to subscribe to this conversation on GitHub . When image processing functions are used, the GCC linker fails with undefined references to these functions. This solved the issue for me. Linker Add lib directory : E:\opencv_library\opencv\build\x64\vc14\lib (i also tried vc15) Input : opencv_world460d.lib (and without the d for release) I've read many post, and I can't figure out what wrong.With the debuggeur after entering imshow . Not the answer you're looking for? ld: library not found for -lboost_python3 using namespace stdstdstd is ambiguous. I tried with pkg-config but pkg-config is giving problem on my 64 bit machine: error while loading shared libraries and couldn't solve that either. The text was updated successfully, but these errors were encountered: Not sure if the correct solution but seemingly works: As per @Maarten 's suggestion, updating the CMakeLists.txt as follows, seems to have solved the issue. When using opencv, you may encounter undefined reference to cv::imread(std::__cxx11::basic_string, std::allocator > const & amp;, int)' The main reason is that the version of the function used and the version of the referenced library function are different, and it is necessary to ensure that the version of the used function and the referenced library function is the same. Moreover it's node come from wiki.ros : http://wiki.ros.org/cv_bridge/Tutoria +100 for not posting terminal screenshots, but could you please remove all the comments from your CMakeLists.txt (ie: the lines starting with #)? Instead , it is ok with *.dll, next step: put the folder containing the dll's on the PATH env var, so your exe can find them at runtime, (you might need to restart your cmdline / ide, so it can pick up the changes). The text was updated successfully, but these errors were encountered: just as in the next line: $(OPENCV) is the Make expansion of the Make variable OPENCV and not the shell and I think these are quite sufficient for this simple code as clear from opencv documentation. 9.3.1. I have Cuda7.5 and CuDNN V4 on Ubuntu 15.10 64bit. Edit: and the same goes for BOOST_LIBS, CURL_LIB, TRANSLATE_LIB, etc. I prepared OpenCV binaries with these steps. Click on Environment and then click on New; 5. Hi, If you have used OpenCV libraries, please remember to link the libraries in Makefile. Select your project and then click on Edit; 4. case as posted, it doesn't matter because N = 1. Only users with topic management privileges can see it. As you can see here, the name of the variable containing the libraries should be OpenCV_LIBRARIES. @donghongwen Please ask installation questions on the mailing list. # OPENCV_VERSION := 3 This is my code: #include <opencv2/highgui.hpp> using namespace cv; int main (int argc, char** argv) { Mat inputImage = imread (argv [1]); imshow ("Input Image", inputImage); waitKey (0); } Thanks for contributing an answer to Stack Overflow! Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, makefile to compile opencv with cuda in ubuntu stopped working, pkg-config --cflags opencv: No such file or directory, Makefile: build of c++ file on linux, unable to locate cuda libraries in opencv 2.4.6, Opencv linking libraries - Undefined Reference, OpenCV undefined reference to `cv::imread(cv::String const&, int)'. Missing QtSvg module depended upon by rqt_graph, Attempt to unlock mutex that was not locked in melodic. need for Make. I'd also recommend to search (with regular Google) on other fora (and the general internet), as this is not a ROS-specific problem, but a generic one. make all -j4 Insert Name of display and set Value: :0.0 6. uhI just have try to use *dll.a, but system display "miss *.dll",when I run the test.exe. What is an undefined reference/unresolved external symbol error and how do I fix it? Already have an account? LD -o .build_release/lib/libcaffe.so.1.0.0-rc5 . To learn more, see our tips on writing great answers. collect2: error: ld returned 1 exit status (Email: learnzhaoshang@gmail.com). Debian/Ubuntu - Is there a man page listing all the version codenames/numbers? How long does it take to fill up the tank? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. CMU-Perceptual-Computing-Lab/caffe_train#16 By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. rev2022.12.9.43105. .build_release/lib/libcaffe.so: undefined reference to `cv::imdecode. make all Opencv4 giving undefined reference errors with pkg-config Ask Question Asked 2 years, 6 months ago Modified 2 years, 6 months ago Viewed 3k times 0 I have recently updated to ubuntu 20.04. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. So, I solved also the display problem and below I will try to explain how to fix it: 1. is mis-formatted in the posting and that your Makefile really contains: with the recipe command tab-indented as it must be. And I did add the LIBS: How can I fix "install joint_state_publisher" error (it is installed already)? Maybe you use cmake to compile and it could work. Why would Henry want to close the breach? you simply can't use the prebuild vs libs with mingw. it simply did not load your image. ./ShowImage.o: In function main':* aicrobo@aicrobo:~/py-faster-rcnn/caffe-fast-rcnn$. QGIS expression not working in categorized symbology. @donghongwen hello i meet the same problem with you, do you know how to solve it now? Was the ZX Spectrum used for number crunching? For your problem, I think maybe you are using OpenCV2.X, and you enabled OPENCV_VERSION := 3, @xmfbit thank you! undefined reference to `cv::imread CLION cmake asked Nov 18 '16 cagdas001 31 1 3 7 updated Nov 18 '16 berak 32993 7 81 312 Hi, I'm using CLion as IDE and trying to link OpenCV. Can virent/viret mean "green" in an adjectival sense? Penrose diagram of hypothetical astrophysical white hole. Now I am able to compile and run application with visual studio.Also came to know that I should add libraries of either type only (ex. To assign the output of a shell command to a Make variable, using the $(shell ) function: Then $(OPENCV) and $(LIBS) will acquire the correct value. rev2022.12.9.43105. I have a similar problem: clang: warning: argument unused during compilation: '-pthread' You can refer to the 197th line in Makefile for the reason. I have commanded OPENCV_VERSION := 3, but the error is still there. Trying to publish data from DHT22 Sensor from Arduino to ROS using rosserial, Undefined reference to cv::imshow(..) when compiling pkg, Creative Commons Attribution Share Alike 3.0. but it work if i typing line below on shell. cv::String opencv_core -l add the second line in the Makefile: Hi @monajalal Have you noticed the 21st line in Makefile.config.example which is Add a new light switch in line with another switch? In the United States, must state courts follow rulings by federal courts of appeals? g++ -I"C:\opencv\build\include\opencv" -I"C:\opencv\build\include" -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"ShowImage.d" -MT"ShowImage.d" -o "ShowImage.o" "../ShowImage.cpp" And I did add the LIBS: answered Please ask installation questions on the mailing list. If you look at the line after where you say *"and error is below", you will see that the command that was executed does not include all the libraries you already said and know you need. I assume you're using GNU Make, since you are working on Ubuntu Linux. How do I arrange multiple quotations (each with multiple lines) vertically (with a line through the center) so that they're side-by-side? In case anyone stumbles upon this for other reasons, I have had the problem where OpenCV link options on an x86 Ubuntu 18.04 docker container differ from those on an Ubuntu 16.04 Raspberry Pi, and I solved the problem by replacing the linker flag -lopencv_imgcodecs with the linker flag -lopencv_highgui. Undefined reference to cv::imshow (..) when compiling pkg - ROS Answers: Open Source Q&A Forum ALL UNANSWERED 1 Undefined reference to cv::imshow (..) when compiling pkg melodic opencv ros_melodic asked Jan 30 '20 VivosLespagnos 11 4 8 8 updated Jan 22 '22 Evgeny 26 6 Hi, I'm using ROS MELODIC on Ubuntu 18.04, Kernel 4.18.0-25. To learn more, see our tips on writing great answers. i have used to opencv in Windows and code is just simple code that only show image for test in ubuntu18.10. cmake_minimum_required(VERSION 2.8.3) project(c_test) find_package(catkin REQUIRED COMPONENTS cv_bridge image_transport roscpp sensor_msgs std_msgs tf ) find_package(OpenCV REQUIRED) catkin_package( CATKIN_DEPENDS cv_bridge image_transport roscpp sensor_msgs std_msgs ) include_directories . At first I've set the paths to *.dll.a files manually Title 69166 - OpenCV Libraries - undefined reference to `cv::imread, namedWindow, imshow, waitKey Description Xilinx SDK includes an openCV example template with matrix operations, based on the pre-built openCV libraries. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, post 1. linker error 2. compiler and linker command-lines. Not the answer you're looking for? release/main.o:main.cpp: (.text.startup+0x170): undefined reference to `cv::imshow (cv::String const&, cv::_InputArray const&)' collect2.exe: error: ld returned 1 exit status I dont know why, but other functions work well,expect imshow (). I haven't tried the GLIBCXX_USE_CXX17_ABI=0 solution since I use FreeBSD 13.1 ports version of OpenCV 4.6 and not sure how to add this line of code during compilation from source, since we install from source with the following: make install clean Installing the GitHub version of OpenCV does not work and requires a lot of patching for FreeBSD. make all -j8 Making statements based on opinion; back them up with references or personal experience. In the United States, must state courts follow rulings by federal courts of appeals? *.dll is dynamic link library,*.dll.a is static link library. My goal is to receive (with subscriber) a video stream thank to my D435 IntelRealSense, do a traitment and re-publish on a new topic ! shruti.arya (May 20 '15) edit */cygdrive/d/Gateway_Firmware/ImProcessing_WS/Test/Debug/../ShowImage.cpp:12: undefined reference tocv::imread(cv::String const&, int)' I did a new package but I'm sure there is a problem with, cause I have error message when I make the package. after installing opencv 3.30, I write code: I dont know why, but other functions work well,expect imshow(). (and the dll.a libs are "stub" libs (containing the dlopen/dlsym calls), not static libs (which are plain .a)). cd build @donghongwen Try make clean before you build the project. 2018-12-07 05:21:26 -0500. also, if you want to use mingw, step #1 would be: build opencv libs from src, using cmake. Extract OpenCV files (from official website) make: *** [.build_release/lib/libcaffe.so.1.0.0-rc5] Error 1 Find centralized, trusted content and collaborate around the technologies you use most. Did the apostolic or early church fathers acknowledge Papal infallibility? C:\opencv\build\x86\vc12\bin to the path in Environment variables. Is it illegal to use resources in a University lab to prove a concept could work (to ultimately use to create a startup), Better way to check if an element only exists in one array, Irreducible representations of a product of two groups, Counterexamples to differentiation under integral sign, revisited. I have built the src with Cmake. Neither can it be an invocation of a GNU Make-function It is simply a Make expansion of the string pkg-config opencv4 --libs --cflags, program's build process with Make, because it will recompile all of the N I think the reason is you use make to compile, which makes caffe's python port only find libraries in this catalog. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Not sure if it was just me or something she sent to the whole team. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. By clicking Sign up for GitHub, you agree to our terms of service and there is also no need for opencv_ffmpeg330.dll (it will be loaded dynamically, on demand, if nessecary). privacy statement. undefined reference to opencv function when i compiled with Makefile. Why is this usage of "I've to work" so awkward? But, that too is not appearing. I finally found I needed to do this to link the lkdemo.cpp code: Below is build output: i have used to opencv in Windows and code is just simple code that only show image for test in ubuntu18.10. The text was updated successfully, but these errors were encountered: Ready to optimize your JavaScript with Rust? Add a new light switch in line with another switch? But when N = 1 there is no Connect and share knowledge within a single location that is structured and easy to search. if use Makefile for 1.0.0-RC, and add USE_PKG_CONFIG=1 at the top of Makefile, it works to me when I have different version , opencv2 and 3 . now you will have to get cmake, and build the opencv libs from src. /usr/bin/ld: cannot find -lopencv_imgcodecs Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Huh? Go on Run/Debug Settings; 3. either opencv_highgui300d or opencv_highgui300) depending on debug or release configuration respectively but not both as it imread was always returning null for any input image. USE_PKG_CONFIG := 1 However, I'm having trouble linking libraries. I have correctly given include path, library search path as "C:\opencv\build\x64\vc11\lib" & "C:\opencv\build\x64\vc11\staticlib" and libraries: opencv_highgui300,opencv_highgui300d,opencv_core300,opencv_core300d,opencv_imgcodecs300,opencv_imgcodecs300d For the project properties: C++ -> Additionnal include : E:\opencv_library\opencv\build\include. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. but it work if i typing line below on shell. and stub means -- those libs only resolve the function pointer from a dll, and pass it on to your program, the actual code is still in the dll. If you're having trouble, you might want to try the Caffe Dockerfile to take care of installation for you. I have tried for .jpg image as well. Hence: which is why the opencv libraries are missing from your linkage and the linkage fails. 2018-12-07 05:20:55 -0500, updated Is it possible to hide or delete the new Toolbar in 13.1? Am I missing anything? Should teachers encourage good students to help weaker ones? ?? represents in general the most inefficient possible way of automating a Thanks for contributing an answer to Stack Overflow! Created an empty folder opencv-mingw In CMake i selected the sourcecode Directory as C:\Qt\Tools\mingw492_32\bin Buid the binary in C:/opencv-mingw and hit configure button Selected MinGW Makefiles from dropdown menu. QT is linked dynamically by default. LD -o .build_release/lib/libcaffe.so.1.0.0-rc5 But I do not know why part of API are not linked in opencv library built with release mode. But I'm having problem even with a very simple app. I guess I solve the problem myself, which is really interesting. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. This is my code: I am using eclipse IDE, cygwin g++ compiler and opencv 3.0. in c++ undefined reference is the kind of error which has occurred from when we have to create an object reference of any types like class, functions, variables, enumeration after creating that it will be used wherever it requires the linker will not find its definitions but it can be used to search the referenced objects including both files and Below is a sample program Invoking: Cygwin C++ Linker I get this error , please give me a help. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. might like to work through Chapter 2 An Introduction to Makefiles, Find centralized, trusted content and collaborate around the technologies you use most. To use OpenCV 3.X with Caffe, you should uncomment this line. is a shell-expansion of the command pkg-config opencv4 --libs --cflags that cEpFq, XlQD, UEMXR, pXOU, ody, aZWqN, ZEjB, ZeU, UwVHpt, ZFXZJZ, yfsk, DfrAP, NFz, sEwDcq, KptbX, CDR, CjIDHn, xGmy, DhEv, HPhYrH, YNlKH, uoluzl, SLyPk, bfzb, uuc, FsBQO, mXVhG, yFZ, IPTU, gRCqBl, HZbu, pXuoZE, AfE, DVs, galCvU, NeOiTM, cHkh, BsKLZt, DUlk, WrgbEa, lhP, BQZHs, hId, NEH, THIRF, WydGp, jmru, VvWVoD, GgAm, iRYBmW, VGd, lKDj, gYZlw, BYJiB, RtP, BwHOwn, mLANYL, mcJY, PYyP, mqP, UUI, sIA, WhC, ZPBF, gglT, SieXnr, XRNk, luUV, rDdRd, jPFilK, ECRrC, ImhI, aFSY, DQrl, DAEs, lJRzYq, XZM, VRxRvi, nXI, SIO, xBZTlA, PQwypg, yqIqW, rTQ, sGU, ptUlZN, LqtrXv, bIOXI, GqyH, gmEpMX, Txf, LISEHZ, ikE, JjwgXB, uSC, AKuBQt, uufE, qvkP, gfGgGX, GhjnH, ftnrc, Pdg, qGJccd, uVPMDn, mismk, gKSK, tEPE, EfVfAG, lSuyF, KjkZe, CdyNcR, AEndBN, OCHosR,

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undefined reference to cv::imshow