private async Task <byte> GetBrightness()
{
var brightness = new byte();
if (cameraCapture.IsPreviewActive)
{
// Get current preview bitmap
var previewBitmap = await cameraCapture.GetPreviewBitmap();
// Get underlying pixel data
var pixelBuffer = GetPixelBuffer(previewBitmap);
// Process buffer to determine mean gray value (brightness)
brightness = CalculateMeanGrayValue(pixelBuffer);
}
return(brightness);
}
