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    UNSOLVED MMM-Facial-Recognition-OCV3 error at tools.train.py

    Troubleshooting
    facial error
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    • A
      alfi153 last edited by

      Hello

      I use the version OCV3 of face recognition.
      My problem is when I try again my face to increase the hit rate, I get the error message when typing “python tools.train.py”:

      Remember to set the name list environment variable FACE_USERS
      Reading training images…

      Assign label 1 to Alfred

      OpenCV Error: Assertion failed (ssize.width > 0 && ssize.height > 0) in resize, file /home/pi/opencv/modules/imgproc/src/imgwarp.cpp, line 3483
      Traceback (most recent call last):
      File “tools.train.py”, line 14, in
      ToolsTrain().train()
      File “/home/pi/MagicMirror/modules/MMM-Facial-Recognition-OCV3/lib/tools/train.py”, line 53, in train
      faces.append(self.prepareImage(filename))
      File “/home/pi/MagicMirror/modules/MMM-Facial-Recognition-OCV3/lib/tools/train.py”, line 29, in prepareImage
      return self.face.resize(cv2.imread(filename, cv2.IMREAD_GRAYSCALE),ToolsConfig.FACE_WIDTH, ToolsConfig.FACE_HEIGHT)
      File “/home/pi/MagicMirror/modules/MMM-Facial-Recognition-OCV3/lib/common/face.py”, line 113, in resize
      return cv2.resize(image, (face_width, face_height), interpolation=cv2.INTER_LANCZOS4)
      cv2.error: /home/pi/opencv/modules/imgproc/src/imgwarp.cpp:3483: error: (-215) ssize.width > 0 && ssize.height > 0 in function resize

      please help

      S nischi 2 Replies Last reply Reply Quote 0
      • S
        SdeGeata @alfi153 last edited by

        Bump! Same error message.

        @alfi153 said in MMM-Facial-Recognition-OCV3 error at tools.train.py:

        Hello

        I use the version OCV3 of face recognition.
        My problem is when I try again my face to increase the hit rate, I get the error message when typing “python tools.train.py”:

        Remember to set the name list environment variable FACE_USERS
        Reading training images…

        Assign label 1 to Alfred

        OpenCV Error: Assertion failed (ssize.width > 0 && ssize.height > 0) in resize, file /home/pi/opencv/modules/imgproc/src/imgwarp.cpp, line 3483
        Traceback (most recent call last):
        File “tools.train.py”, line 14, in
        ToolsTrain().train()
        File “/home/pi/MagicMirror/modules/MMM-Facial-Recognition-OCV3/lib/tools/train.py”, line 53, in train
        faces.append(self.prepareImage(filename))
        File “/home/pi/MagicMirror/modules/MMM-Facial-Recognition-OCV3/lib/tools/train.py”, line 29, in prepareImage
        return self.face.resize(cv2.imread(filename, cv2.IMREAD_GRAYSCALE),ToolsConfig.FACE_WIDTH, ToolsConfig.FACE_HEIGHT)
        File “/home/pi/MagicMirror/modules/MMM-Facial-Recognition-OCV3/lib/common/face.py”, line 113, in resize
        return cv2.resize(image, (face_width, face_height), interpolation=cv2.INTER_LANCZOS4)
        cv2.error: /home/pi/opencv/modules/imgproc/src/imgwarp.cpp:3483: error: (-215) ssize.width > 0 && ssize.height > 0 in function resize

        please help

        S 1 Reply Last reply Reply Quote 0
        • S
          SdeGeata @SdeGeata last edited by

          @SdeGeata Anyone got an answer to this one? I’m still stuck on this.

          1 Reply Last reply Reply Quote 0
          • nischi
            nischi @alfi153 last edited by

            @alfi153
            Do you tried what are in the docu?

            Test your trained model
            Make sure your training.xml from running train.py is in this directory
            Specify your user labels in the environment with
            
            export FACE_USERS=name1,name2,name3
            
            Run python tools.facerecognition.py to test your trained model.
            
            S 1 Reply Last reply Reply Quote 0
            • S
              SdeGeata @nischi last edited by SdeGeata

              @nischi

              Hello Nischi;

              Only got as far as “python tools.train.py”. That is what generates the error and it doesn’t generate the XML file that it should, so I can’t verify my training.

              Everything up until then is fine, and there are two named folders in the specified folder (training_data/) with pics of myself and my girlfriend. These photos were already processed by the previous function; “python tools.capture.py”. I don’t know why its bugging.

              nischi 1 Reply Last reply Reply Quote 0
              • nischi
                nischi @SdeGeata last edited by

                @SdeGeata
                It seems he can’t resize the image for some reason. Have you checked all your pictures that nothing is corrupt and have you checked that your python has access to the files as well?

                S 1 Reply Last reply Reply Quote 0
                • S
                  SdeGeata @nischi last edited by

                  @nischi

                  Yeah, all the photos load fine in preview app and they were all found, formatted and placed in the folder by the previous step. I don’t know why it is having a problem.

                  S 1 Reply Last reply Reply Quote 0
                  • S
                    SdeGeata @SdeGeata last edited by

                    @SdeGeata

                    I have gone ahead and started the process over again, just in case i missed something. I uninstalled everything and did a fresh install. It won’t even capture anymore, never-mind training with the images i already have.

                    I just want to get this thing going.

                    nischi 2 Replies Last reply Reply Quote 0
                    • nischi
                      nischi @SdeGeata last edited by

                      @SdeGeata
                      Do you working with a mac? Maybe you have some issues with the permissioning, have you tried (only for testing) to give all folders full access? i had some issue also if i used sudo for some stuff where i shoudn’t.

                      1 Reply Last reply Reply Quote 0
                      • nischi
                        nischi @SdeGeata last edited by

                        @SdeGeata
                        I am currently working on a new version of face recognition with another method and the new ocv 4 version. Current tests works much better than this old module. i only need to finish the module soon. i think this or next week i should have a first version which works.

                        S 1 Reply Last reply Reply Quote 0
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