[ Camera #3 ] CameraX - 전면 카메라 회전현상 수정

Camerax 로 구현하다 보니 전면 카메라 일 경우 양옆이 회전되서 반대로 나오는 현상이 나오더라 

 

예전을 돌이켜보면 원래 그랬던거 같기도하고 .. 

 

반응형

 

private fun takePhoto() {
        val imageCapture = imageCapture ?: return
        imageCapture.takePicture(cameraExecutor, object: ImageCapture.OnImageCapturedCallback() {
            override fun onCaptureSuccess(image: ImageProxy) {
                super.onCaptureSuccess(image)
                var bitmap = imageProxyToBitmap(image)?.rotate(image.imageInfo.rotationDegrees.toFloat())

                bitmap = bitmap?.let {
                    if (lensFacing == CameraSelector.LENS_FACING_FRONT) {
                        it.reverse()
                    } else it
                }

            }
            override fun onError(exception: ImageCaptureException) {
                super.onError(exception)
                CmLog.e("Photo capture failed: ${exception.message}")
            }
        })
    }
    
    
    private fun imageProxyToBitmap(image: ImageProxy): Bitmap? {
        val planeProxy = image.planes[0]
        val buffer: ByteBuffer = planeProxy.buffer
        val bytes = ByteArray(buffer.remaining())
        buffer.get(bytes)
        return BitmapFactory.decodeByteArray(bytes, 0, bytes.size)
    }
    
    private fun Bitmap.reverse(): Bitmap =
        Bitmap.createBitmap(this, 0, 0, width, height, Matrix().apply { setScale(-1f, 1f) }, false)

    private fun Bitmap.rotate(degrees: Float): Bitmap =
        Bitmap.createBitmap(this, 0, 0, width, height, Matrix().apply { postRotate(degrees) }, true)

 

 

 

2022.09.13 - [Android/Camera] - [ Camera #1 ] CameraX

[ Camera #1 ] CameraX

 

2023.01.16 - [Android/Camera] - [ Camera #2 ] CameraX - ImageCapture.OnImageCapturedCallback

[ Camera #2 ] CameraX - ImageCapture.OnImageCapturedCallback