コード例 #1
0
ファイル: Hdr.cpp プロジェクト: AKS2346/Cinder
void hdrNormalize( Channel32f *channel )
{
	// first take histogram to find the minimum and maximum values present
	float minVal, maxVal;
	getMinMax( *channel, &minVal, &maxVal );

	// if min==max then we should just fill with black
	if( minVal == maxVal ) {
		fill<float>( channel, 0 );
		return;
	}
	
	float scale = 1.0f / ( maxVal - minVal );
	Channel32f::Iter iter = channel->getIter();
	while( iter.line() ) {
		while( iter.pixel() ) {
			iter.v() = ( iter.v() - minVal ) * scale;
		}
	}
}
コード例 #2
0
void VisualAgitation::update() {
    if( mCapture && mCapture.checkNewFrame() ) {
		Channel32f newChan(mCapture.getSurface() );
        
        Channel32f::Iter iterNew = newChan.getIter();
        Channel32f::Iter iterOld = mChannel.getIter();

        deltaSum = 0.0f;
        
        while( iterNew.line() && iterOld.line() ) {
            while( iterNew.pixel() && iterOld.pixel() ) {
                deltaSum += fabsf( iterNew.v() - iterOld.v());
            }
        }
        mChannel = newChan ;
	}
}