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[solved] Linking Nokia Qt with OpenVC

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  • T Offline
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    tanclanship
    wrote on last edited by
    #2

    Hope someone can help.

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  • T Offline
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    tanclanship
    wrote on last edited by
    #3

    I tried to integrate OpenCV with NokiaQT
    When debug it , the NokiaQT did not show the emulator. At the bottom of my

    Application Output Shows :
    C:\NokiaQtSDK\PSM\cubaanImage-build-simulator\release\cubaanImage.exe exited with code -1072365566

    Compile Output :
    The process "C:/NokiaQtSDK/mingw/bin/mingw32-make.exe" exited normally.

    Any ideas ? ^^

    Edit: merged this question from a separate post into this thread; Andre

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  • S Offline
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    Scylla
    wrote on last edited by
    #4

    On my mac I have just this in my *.pro file
    @INCLUDEPATH += /usr/local/include/opencv
    LIBS += -lopencv_highgui@
    Take a look "here":http://qt-apps.org/content/show.php/Qt+Opencv+webcam+viewer?content=89995

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  • T Offline
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    tanclanship
    wrote on last edited by
    #5

    Scylla. I presume that you been using this for your project and it runs normally.Does it ?

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  • S Offline
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    Scylla
    wrote on last edited by
    #6

    Yes it runs normally. But I see you are using the symbian. I'm not in touch with symbian. Do you need a cross compiler for symbian, if yes do you have corss compiled the opencv libs?

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  • T Offline
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    tanclanship
    wrote on last edited by
    #7

    What is a cross compiler ? Can you explain it to me ? I think my OpenCV does not have it

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  • A Offline
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    andre
    wrote on last edited by
    #8

    [quote author="tanclanship" date="1300090621"]What is a cross compiler ? Can you explain it to me ? [/quote]
    A "cross compiler":http://en.wikipedia.org/wiki/Cross_compiler is compiler that runs on platform A to produce binaries for platform B.

    So, in order to produce software that runs on Symbian, you probably will be needing a cross compiler that runs on your desktop and that produces binaries for Symbian, as you don't want want to compile your software on the device itself, I'd say :)

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  • T Offline
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    tanclanship
    wrote on last edited by
    #9

    Andre -> Thanks for the information. Do NokiaQT could perform cross compiler on other third party libraries too ?

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  • A Offline
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    andre
    wrote on last edited by
    #10

    [quote author="tanclanship" date="1300091670"]Andre -> Thanks for the information. Do NokiaQT could perform cross compiler on other third party libraries too ?
    [/quote]
    I would imagine that an installed cross compilation tool chain would work for third party libraries too, if these libraries can be compiled for the different platform. For instance, if your library makes use of x86 specific functionality, then you can not expect to be able to compile and/or run it successfully on an ARM based device.

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  • T Offline
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    tanclanship
    wrote on last edited by
    #11

    Andre -> I see. then the libraries do can be compile at different platforms . But problem again is that I do now know how to do it(refer first post). Thanks again

    Me -> Will be waiting here patiently for someone to solve the OpenCV and NOkiaQT problem.Been killing me

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  • A Offline
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    andre
    wrote on last edited by
    #12

    [quote author="tanclanship" date="1300092807"]Andre -> I see. then the libraries do can be compile at different platforms . But problem again is that I do now know how to do it(refer first post). Thanks again[/quote]
    I have no experience with this library, so I can't help you there.
    [quote]
    Me -> Will be waiting here patiently for someone to solve the OpenCV and NOkiaQT problem.Been killing me[/quote]
    I doubt that is a very effective strategy. I'd keep trying to find a solution myself, with lots of googling, posting in relevant forums, looking for relevant mailing lists, trying for relevant IRC channels, and if all else fails, even trying to email the author of the OpenCV library and politely asking where you might find pointers to solve your problem. The internet is a big place, and DevNet is not the only place where you might unearth solutions to your problems.

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  • G Offline
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    giesbert
    wrote on last edited by
    #13

    You can create a project qith QMake for the sources to compile (should also work with non Qt projects). You can use qmake -project for that. Then you can compile for the needed platform as you do with all other projects in QtCreator...

    Nokia Certified Qt Specialist.
    Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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  • C Offline
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    cincirin
    wrote on last edited by
    #14

    Below is my application project linked with OpenCV 2.2 (It works like a charm with 2 cameras attached)

    ...
    OPENCV_DIR = ../../../../LIBS/OpenCV/OpenCV-2.2

    INCLUDEPATH +=
    $$OPENCV_DIR/include
    $$OPENCV_DIR/modules/core/include
    $$OPENCV_DIR/modules/imgproc/include
    $$OPENCV_DIR/modules/video/include
    $$OPENCV_DIR/modules/features2d/include
    $$OPENCV_DIR/modules/flann/include
    $$OPENCV_DIR/modules/calib3d/include
    $$OPENCV_DIR/modules/objdetect/include
    $$OPENCV_DIR/modules/legacy/include
    $$OPENCV_DIR/modules/highgui/include
    $$OPENCV_DIR/modules/ml/include
    $$OPENCV_DIR/modules/contrib/include

    LIBS =
    -L$$OPENCV_DIR/modules/core/lapack/$$CONFDIR
    -L$$OPENCV_DIR/modules/core/$$CONFDIR
    -L$$OPENCV_DIR/modules/highgui/$$CONFDIR

    -lopencv_lapack
    -lopencv_core
    -lopencv_highgui

    win32: LIBS += -lvfw32 -lole32

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  • G Offline
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    giesbert
    wrote on last edited by
    #15

    this is the project file of your app, not for openVC.
    You have to build OpenVC for the target platform.

    So: get the source of OpenVC and compile it for your target platform.

    Nokia Certified Qt Specialist.
    Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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  • C Offline
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    cincirin
    wrote on last edited by
    #16

    I have compiled all modules from OpenCV 2.2 in Windows 7 and Ubuntu 64 bits.
    All the modules I've compiled with QtCreator. They are: lapack, core, contrib, calib3d, features2d, flann, gpu, haartraining, highgui, imgproc, legacy, ml, objdetect, traincascade, video.

    My application is linked with OpenCV with Qt project described above.

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  • G Offline
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    giesbert
    wrote on last edited by
    #17

    You are at a mobile forum,
    are you building for mobile?
    or for win7 and Ubuntu 64 bits?

    Nokia Certified Qt Specialist.
    Programming Is Like Sex: One mistake and you have to support it for the rest of your life. (Michael Sinz)

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  • C Offline
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    cincirin
    wrote on last edited by
    #18

    I apologize, I have not noticed that it is a mobile forum.
    Yes, I have compiled for win7 and Ubuntu (32&64).
    In the near future, I'll try to compile for mobile platform.
    Sorry again.

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  • A Offline
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    andre
    wrote on last edited by
    #19

    [quote author="cincirin" date="1300101520"]I apologize, I have not noticed that it is a mobile forum.
    Yes, I have compiled for win7 and Ubuntu (32&64).
    In the near future, I'll try to compile for mobile platform.
    Sorry again.[/quote]

    -OK, so I have moved the thread to the General & Desktop forum.-
    Moved back to Mobile & Embedded on request of TS.

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  • T Offline
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    tanclanship
    wrote on last edited by
    #20

    I have follow your instruction by downloading and install OpenCV2.2 in my default folder. C:/OpenCV2.2 . Below is my pro file. I have chance the OPENCV_DIR following my directory. but when I compile using NokiaQT I have error stating cannot find -lopencv_lapack. Please help thank you

    @OPENCV_DIR = C:/OpenCV2.2

    INCLUDEPATH +=
    $$OPENCV_DIR/include
    $$OPENCV_DIR/modules/core/include
    $$OPENCV_DIR/modules/imgproc/include
    $$OPENCV_DIR/modules/video/include
    $$OPENCV_DIR/modules/features2d/include
    $$OPENCV_DIR/modules/flann/include
    $$OPENCV_DIR/modules/calib3d/include
    $$OPENCV_DIR/modules/objdetect/include
    $$OPENCV_DIR/modules/legacy/include
    $$OPENCV_DIR/modules/highgui/include
    $$OPENCV_DIR/modules/ml/include
    $$OPENCV_DIR/modules/contrib/include

    LIBS =
    -L$$OPENCV_DIR/modules/core/lapack/$$CONFDIR
    -L$$OPENCV_DIR/modules/core/$$CONFDIR
    -L$$OPENCV_DIR/modules/highgui/$$CONFDIR

    -lopencv_lapack
    -lopencv_core
    -lopencv_highgui

    win32: LIBS += -lvfw32 -lole32@

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  • C Offline
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    cincirin
    wrote on last edited by
    #21

    Sorry "tanclanship" I have compiled all modules from OpenCV 2.2 by myself with QtCreator. If you install OpenCV with precompiled binaries from their site, is almost impossible that libs path be the same.
    Anyway, I looked at their site, and there are two download locations: one for Unix, one for Windows.
    For Windows, I have noticed that there are two variants : one with pre-compiled 32-bit binaries for Visual Studio 2010 developers, and one zip package with sources/headers to be build for your development environment. Which of these three options you've used ?

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