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how to detect only one face.

I Dont want to deetct all the faces in the video, I tried removing the for, it doesn't identify anything. I use following code in Android,

Rect[] facesArray = faces.toArray(); for (int i = 0; i < facesArray.length; i++) Core.rectangle(mRgba, facesArray[i].tl(), facesArray[i].br(),FACE_RECT_COLOR, 3);

But I want to detect only one, how can I convert facesArray so that I can use tl() and br() methods for rectangle() method.

how to detect only one face.

I Dont want to deetct all the faces in the video, I tried removing the for, it doesn't identify anything. I use following code in Android,

Rect[] facesArray = faces.toArray();
for (int i = 0; i < facesArray.length; i++)
Core.rectangle(mRgba, facesArray[i].tl(), facesArray[i].br(),FACE_RECT_COLOR, 3);

3);

But I want to detect only one, how can I convert facesArray so that I can use tl() and br() methods for rectangle() method.