FaceAnonymizationWebCam Issue on Mac

[codenamewei]

Mac
Java java version "1.8.0_221"

https://gist.github.com/codenamewei/fa73de5eefc377dfe498d950496348b4

@kenghooi-teoh

[khalidmjii]

https://gist.github.com/khalidmjii/ec64a7a32fa72dbd967d9b0e31def0d0

[codenamewei]

I abled to reproduce two problems with different JDK 8 patches

@choowilson @kenghooi-teoh
Yet not able to find the solutions as of now.

[kenghooi-teoh]

Not sure how to debug the unknown exception, but here's a workaround:

Instead of using .imshow, we can use the following code,

    // Before while loop in in FaceRecognitionWebcam.java
    // Create image window named "My Image".
    final CanvasFrame canvas = new CanvasFrame(caption, 1.0);

    // Request closing of the application when the image window is closed.
    canvas.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

    // Convert from OpenCV Mat to Java Buffered image for display
    final OpenCVFrameConverter converter = new OpenCVFrameConverter.ToMat();

    // Show image on window. //Inside while loop in FaceRecognitionWebcam.java
    canvas.showImage(converter.convert(image));`