Detect the people face from the image and crop only the face

FaceDetection.kt

    var detector: FaceDetector? = null
            val highAccuracyOpts =
            FaceDetectorOptions.Builder()
                .setPerformanceMode(FaceDetectorOptions.PERFORMANCE_MODE_ACCURATE)
                .setLandmarkMode(FaceDetectorOptions.LANDMARK_MODE_NONE)
                .setClassificationMode(FaceDetectorOptions.CLASSIFICATION_MODE_NONE)
                .build()
        detector = FaceDetection.getClient(highAccuracyOpts)
    fun performFaceDetection(inputImage: Bitmap) {
        val mutableBmp = inputImage.copy(Bitmap.Config.ARGB_8888, true)
        val canvas = Canvas(mutableBmp)
        val image = InputImage.fromBitmap(inputImage, 0)
        val result: Task<List<Face>> =
            detector!!.process(image)
                .addOnSuccessListener { faces ->
                    for (face in faces) {
                        val bounds = face.boundingBox

                        val p = Paint()
                        p.style = Paint.Style.STROKE
                        p.strokeWidth = 3f
                        p.color = Color.RED
                        canvas.drawRect(bounds, p)
                        performFaceRecognition(bounds, inputImage)
                    }
                    //imageView.setImageBitmap(mutableBmp)
                }
                .addOnFailureListener(
                    OnFailureListener {
                        // Task failed with an exception
                        // ...
                    })
    }


    fun performFaceRecognition(bounds: Rect, inputImage: Bitmap) {
        if (bounds.top < 0) {
            bounds.top = 0
        }
        if (bounds.left < 0) {
            bounds.left = 0
        }
        if (bounds.right > inputImage.width) {
            bounds.right = inputImage.width - 1
        }
        if (bounds.bottom > inputImage.height) {
            bounds.bottom = inputImage.height - 1
        }

        var croppedFace = Bitmap.createBitmap(
            inputImage,
            bounds.left,
            bounds.top,
            bounds.width(),
            bounds.height()
        )
        croppedFace = Bitmap.createScaledBitmap(
            croppedFace!!,
            160,
            160,
            false
        )
        binding.faceRecog.setImageBitmap(croppedFace)

    }