OniStatus KinectStreamImpl::getAutoExposure(BOOL *val)
{
INuiColorCameraSettings *pCameraSettings;
HRESULT hr = m_pNuiSensor->NuiGetColorCameraSettings(&pCameraSettings);
if (FAILED(hr))
{
return ONI_STATUS_ERROR;
}
hr = pCameraSettings->GetAutoExposure(val);
OniStatus status = FAILED(hr) ? ONI_STATUS_ERROR : ONI_STATUS_OK;
pCameraSettings->Release();
return status;
}
HRESULT KinectSensor::toggleAutoWhiteBalance()
{
INuiColorCameraSettings* colorCameraSettings;
HRESULT hr = S_OK;
hr = m_pNuiSensor->NuiGetColorCameraSettings(&colorCameraSettings);
if (hr != E_NUI_HARDWARE_FEATURE_UNAVAILABLE) { //feature only supported with windows Kinect
BOOL ex;
colorCameraSettings->GetAutoExposure(&ex);
colorCameraSettings->SetAutoExposure(!ex);
//double exposure;
//colorCameraSettings->GetExposureTime(&exposure);
//double minExp; colorCameraSettings->GetMinExposureTime(&minExp);
//double maxExp; colorCameraSettings->GetMaxExposureTime(&maxExp);
//std::cout << exposure << std::endl;
//std::cout << minExp << std::endl;
//std::cout << maxExp << std::endl;
//colorCameraSettings->SetExposureTime(6000);
//double fr;
//colorCameraSettings->GetFrameInterval(&fr);
//std::cout << fr << std::endl;
//double gain;
//hr = colorCameraSettings->GetGain(&gain);
//std::cout << gain << std::endl;
//double minG; colorCameraSettings->GetMinGain(&minG);
//double maxG; colorCameraSettings->GetMaxGain(&maxG);
//std::cout << minG << std::endl;
//std::cout << maxG << std::endl;
hr = colorCameraSettings->SetGain(4);
BOOL ab;
colorCameraSettings->GetAutoWhiteBalance(&ab);
colorCameraSettings->SetAutoWhiteBalance(!ab);
colorCameraSettings->SetWhiteBalance(4000); //this is a wild guess; but it seems that the previously 'auto-set' value cannot be obtained
//LONG min; colorCameraSettings->GetMinWhiteBalance(&min);
//LONG max; colorCameraSettings->GetMaxWhiteBalance(&max);
//std::cout << min << std::endl;
//std::cout << max << std::endl;
}
return hr;
}
int _tmain(int argc, _TCHAR* argv[])
{
cv::setUseOptimized( true );
INuiSensor* pSensor;
HRESULT hResult = S_OK;
hResult = NuiCreateSensorByIndex( 0, &pSensor );
if( FAILED( hResult ) ){
std::cerr << "Error : NuiCreateSensorByIndex" << std::endl;
return -1;
}
hResult = pSensor->NuiInitialize( NUI_INITIALIZE_FLAG_USES_COLOR );
if( FAILED( hResult ) ){
std::cerr << "Error : NuiInitialize" << std::endl;
return -1;
}
HANDLE hColorEvent = INVALID_HANDLE_VALUE;
HANDLE hColorHandle = INVALID_HANDLE_VALUE;
hColorEvent = CreateEvent( nullptr, true, false, nullptr );
hResult = pSensor->NuiImageStreamOpen( NUI_IMAGE_TYPE_COLOR, NUI_IMAGE_RESOLUTION_640x480, 0, 2, hColorEvent, &hColorHandle );
if( FAILED( hResult ) ){
std::cerr << "Error : NuiImageStreamOpen( COLOR )" << std::endl;
return -1;
}
INuiColorCameraSettings* pCameraSettings;
hResult = pSensor->NuiGetColorCameraSettings( &pCameraSettings );
if( FAILED( hResult ) ){
std::cerr << "Error : NuiGetColorCameraSettings" << std::endl;
return -1;
}
unsigned long refWidth = 0;
unsigned long refHeight = 0;
NuiImageResolutionToSize( NUI_IMAGE_RESOLUTION_640x480, refWidth, refHeight );
int width = static_cast<int>( refWidth );
int height = static_cast<int>( refHeight );
HANDLE hEvents[1] = { hColorEvent };
cv::namedWindow( "Color" );
while( 1 ){
ResetEvent( hColorEvent );
WaitForMultipleObjects( ARRAYSIZE( hEvents ), hEvents, true, INFINITE );
NUI_IMAGE_FRAME colorImageFrame = { 0 };
hResult = pSensor->NuiImageStreamGetNextFrame( hColorHandle, 0, &colorImageFrame );
if( FAILED( hResult ) ){
std::cerr << "Error : NuiImageStreamGetNextFrame( COLOR )" << std::endl;
return -1;
}
INuiFrameTexture* pColorFrameTexture = colorImageFrame.pFrameTexture;
NUI_LOCKED_RECT colorLockedRect;
pColorFrameTexture->LockRect( 0, &colorLockedRect, nullptr, 0 );
cv::Mat colorMat( height, width, CV_8UC4, reinterpret_cast<unsigned char*>( colorLockedRect.pBits ) );
cv::imshow( "Color", colorMat );
pColorFrameTexture->UnlockRect( 0 );
pSensor->NuiImageStreamReleaseFrame( hColorHandle, &colorImageFrame );
int key = cv::waitKey( 30 );
if( key == VK_ESCAPE ){
break;
}
}
pSensor->NuiShutdown();
pCameraSettings->Release();
CloseHandle( hColorEvent );
cv::destroyAllWindows();
return 0;
}
