ImageView (or another View) is not anchoring strictly to the eye. Apparently a bug.

[UserSty]

I use FaceTracker to overlay an image over the camera image and move it depending on the position of the eyes. But it does not work properly.
Use the following code:

imageView.setX(mPosition.x);
imageView.setY(mPosition.y);

not anchoring (blue square) strictly to the eye, you can see it in the screenshots with different distance from the photos:

See image: https://s32.postimg.org/gy6x8xded/All_steps_error.png

I already asked a question http://stackoverflow.com/questions/38292746/android-how-to-overlay-an-image-imageview-anchoring-the-to-the-eyes/38300203#38300203 but it did not help, and it seems to me that the problem is more deeply.

Help me please.

[pm0733464]

I think that the response posted by theoreticalb@ w.r.t. translating the image coordinates to view coordinates is correct. If you have tried this, please post the code so that we can see what you've tried.

[UserSty]

@pm0733464 This is my code:

  @Override
    public void draw(Canvas canvas) {
        PointF detectLeftPosition = mLeftPosition;
        PointF detectRightPosition = mRightPosition;
        if ((detectLeftPosition == null) || (detectRightPosition == null)) {
            return;
        }

        PointF leftPosition =  new PointF(translateX(detectLeftPosition.x), translateY(detectLeftPosition.y));
        PointF rightPosition = new PointF(translateX(detectRightPosition.x), translateY(detectRightPosition.y));

        // Run in UI
        ((GooglyEyesActivity) mImageView.getContext()).runOnUiThread(new Runnable() {
            @Override
            public void run() {
                mImageView.setX(translateX(leftPosition.x));
                mImageView.setY(translateY(leftPosition.y));
            }
        });
   }

[pm0733464]

Looks like you are doing the translateX/Y twice (e.g., once to compute leftPosition and again for setX).

[UserSty]

@pm0733464 So and how me be? How should look like my code? Help me please.

[pm0733464]

Just use leftPosition directly without calls to translate.

[UserSty]

@pm0733464
but I initially did so, and therefore published a question on stackoverflow. But it does not work and can be seen in the screenshots. What could be the solution?

[UserSty]

@pm0733464 If it doesn't work in two cases, it can be marked as a bug?

[pm0733464]

I'd advise taking a closer look that the Googly Eyes code example:

https://github.com/googlesamples/android-vision/tree/master/visionSamples/googly-eyes

This example shows how to overlay graphics at the correct positions. I don't believe that there is a bug in the face detection code since this works.

I wouldn't be able to tell what's wrong with your app without seeing all of the code.

[UserSty]

@pm0733464
Actually I using a fully code from https://github.com/googlesamples/android-vision/tree/master/visionSamples/googly-eyes and do make only this is:

((GooglyEyesActivity) mImageView.getContext()).runOnUiThread(new Runnable() {
            @Override
            public void run() {
                mImageView.setX(leftPosition.x);
                mImageView.setY(leftPosition.y);
            }
        });

and it doesn't work.
Who can help if it is not a bug?

[UserSty]

Any help, please.

[pm0733464]

Please clarify your modification above. Where are you calling this from? Why did you need to make this change?

[UserSty]

@pm0733464

((GooglyEyesActivity) mImageView.getContext()).runOnUiThread(new Runnable() {
            @Override
            public void run() {
                mImageView.setX(leftPosition.x);
                mImageView.setY(leftPosition.y);
            }
        });

This is I call, in the class of "GooglyEyesGraphic".
I need to do in order to keep the mask in imageView and move to face coordinates.

[UserSty]

Any ideas, please.

[UserSty]

Developers help!