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opencv_world file directory location?

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  • N Offline
    N Offline
    NoobDude12343
    wrote on last edited by NoobDude12343
    #1

    I'm trying to recompile my code from window to embeded linux. After having done installing qt and opencv, i couldn't seem to find the lopencv_world411 (the number could be different depend on the opencv version) for my code. Can anyone enlight me? (i've got a feeling this is a pretty dumb question, but i'd be very greatful if anyone can help me out)

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      You might want to add more information about what that opencv_world file is.

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • N Offline
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        NoobDude12343
        wrote on last edited by NoobDude12343
        #3

        @SGaist sorry, my bad it's lopencv_world411 and lopencv_world411d (the number could be different depend on the opencv version)

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Are you sure that this OpenCV module is available for your target ?

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • N Offline
            N Offline
            NoobDude12343
            wrote on last edited by
            #5

            @SGaist yes i do, i installed it throught terminal command, so it can't go wrong

            jsulmJ 1 Reply Last reply
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            • N NoobDude12343

              @SGaist yes i do, i installed it throught terminal command, so it can't go wrong

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #6

              @NoobDude12343 Did you also sync your sysroot after installing this OpenCV module (it looks like you're cross compiling)?

              https://forum.qt.io/topic/113070/qt-code-of-conduct

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              • jsulmJ jsulm

                @NoobDude12343 Did you also sync your sysroot after installing this OpenCV module (it looks like you're cross compiling)?

                N Offline
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                NoobDude12343
                wrote on last edited by
                #7

                @jsulm no? maybe? to be honest i'm not sure what the sync your sysroot after installing process mean. i download opencv from git, link it with my nano jetson using cmake (following this video to be specific https://www.youtube.com/watch?v=qA46fvP3O5A&t=195s ) and yes, i'm trying to cross compile

                jsulmJ 1 Reply Last reply
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                • N NoobDude12343

                  @jsulm no? maybe? to be honest i'm not sure what the sync your sysroot after installing process mean. i download opencv from git, link it with my nano jetson using cmake (following this video to be specific https://www.youtube.com/watch?v=qA46fvP3O5A&t=195s ) and yes, i'm trying to cross compile

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #8

                  @NoobDude12343 If you're cross-compiling then you have a sysroot, right? You need OpenCV libs for your target, means: on your target and also in your sysroot (including header files in the sysroot). So, where exactly did you install OpenCV libs? On your target device? Your host?

                  https://forum.qt.io/topic/113070/qt-code-of-conduct

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                  • N Offline
                    N Offline
                    NoobDude12343
                    wrote on last edited by
                    #9

                    @jsulm the opencv directory is /usr/local/include/opencv4/opencv2

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                    • N Offline
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                      NoobDude12343
                      wrote on last edited by
                      #10

                      @jsulm thanks for your help, but i think i messed up the installing opencv part, since my "show the image" project has never work properly but i just blindly assume that i installed it correctly. But i'm not quite sure anymore. I have made a new thread about that, it'd be more than happy to see your opinion about the subject
                      https://forum.qt.io/topic/125527/arm-architecture-opencv-qt-not-working-properly

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