Img GaborImage::GaborTransform(Img Image, int Frequency, int Orientation) {
orientation = Orientation;
CalculateKernel(Orientation, Frequency);
Img retImg = (IplImage*) cvClone(Image);
Img gabor_real = (IplImage*) cvClone(Image);
Img gabor_img = (IplImage*) cvClone(Image);
cvFilter2D(Image, gabor_real, KernelRealData); //image.Convolution(this.KernelRealData);
cvFilter2D(Image, gabor_img , KernelImgData); //image.Convolution(this.KernelImgData);
cvPow(gabor_real, gabor_real, 2);
cvPow(gabor_img, gabor_img, 2);
// Img gabor = (gabor_real + gabor_img).Pow(0.5);
cvAdd(gabor_real, gabor_img, retImg);
cv::Mat in = retImg;
cv::Mat out;
cv::sqrt(in, out);
IplImage dst_img = out;
cvReleaseImage(&gabor_real);
cvReleaseImage(&gabor_img);
retImg = (IplImage*) cvClone(&dst_img);
return retImg;
}
void CBitPatternTreeMethod::buildFluxModes()
{
CStepMatrix::const_iterator it = mpStepMatrix->begin();
CStepMatrix::const_iterator end = mpStepMatrix->end();
CVector< size_t > Indexes;
C_INT NumSpecies = mExpandedStoiTranspose.numCols();
for (; it != end; ++it)
{
getUnsetBitIndexes(*it, Indexes);
C_INT NumReactions = Indexes.size();
// Remove trivial modes, i.e., reversible reactions
if (NumReactions == 2 &&
(*mpReorderedReactions)[mReactionForward[Indexes[0]].first] ==
(*mpReorderedReactions)[mReactionForward[Indexes[1]].first])
{
continue;
}
// Build the stoichiometry matrix reduced to the reactions participating in the current mode.
CMatrix< C_INT64 > A(NumReactions, NumSpecies);
size_t * pIndex = Indexes.array();
size_t * pIndexEnd = pIndex + NumReactions;
C_INT64 * pARow = A.array();
for (; pIndex != pIndexEnd; ++pIndex, pARow += NumSpecies)
{
memcpy(pARow, &mExpandedStoiTranspose(*pIndex, 0), NumSpecies * sizeof(C_INT64));
}
// Calculate the kernel of the matrix
CMatrix< C_INT64 > ExpandedStoiTranspose(A);
CMatrix< C_INT64 > Kernel;
CVector< size_t > Pivot;
CalculateKernel(ExpandedStoiTranspose, Kernel, Pivot);
size_t NumCols = Kernel.numCols();
// Now we create the flux mode as we have the multiplier and reaction indexes.
// We need to invert the sign of the multiplier for reactions which are not forward.
// A flux mode is reversible if all reactions are reversible;
C_INT64 * pColumn = Kernel.array();
C_INT64 * pColumnEnd = pColumn + NumCols;
for (; pColumn != pColumnEnd; ++pColumn)
{
std::map< size_t, C_FLOAT64 > Reactions;
bool Reversible = true;
pIndex = Indexes.array();
C_INT64 * pFluxMultiplier = pColumn;
for (; pIndex != pIndexEnd; ++pIndex, pFluxMultiplier += NumCols)
{
if (*pFluxMultiplier < 0)
{
break;
}
else if (*pFluxMultiplier < 0)
{
continue;
}
std::pair< size_t, bool > & ReactionForward = mReactionForward[*pIndex];
Reactions[ReactionForward.first] =
(ReactionForward.second == true) ? *pFluxMultiplier : -*pFluxMultiplier;
if (!(*mpReorderedReactions)[ReactionForward.first]->isReversible())
{
Reversible = false;
}
}
if (pIndex != pIndexEnd)
{
continue;
}
addMode(CFluxMode(Reactions, Reversible));
}
}
}
void CBitPatternTreeMethod::buildKernelMatrix(CMatrix< C_INT64 > & kernelInt)
{
// Calculate the kernel matrix
// of the reduced stoichiometry matrix to get the kernel matrix for the:
// Nullspace Approach to Determine the Elementary Modes of Chemical Reaction Systems (Wagner 2004)
CCopasiVector< CReaction >::const_iterator itReaction = mpModel->getReactions().begin();
CCopasiVector< CReaction >::const_iterator endReaction = mpModel->getReactions().end();
size_t ReactionCounter = 0;
for (; itReaction != endReaction; ++itReaction, ++ReactionCounter)
{
if ((*itReaction)->isReversible())
{
// mpReorderedReactons->push_back(*itReaction);
mReactionForward.push_back(std::make_pair(ReactionCounter, false));
}
mpReorderedReactions->push_back(*itReaction);
mReactionForward.push_back(std::make_pair(ReactionCounter, true));
}
const CMatrix< C_FLOAT64 > & Stoi = mpModel->getRedStoi();
size_t NumReactions = Stoi.numCols();
size_t NumExpandedReactions = mReactionForward.size();
size_t NumSpecies = Stoi.numRows();
C_INT32 Dim = std::min(NumExpandedReactions, NumSpecies);
if (Dim == 0)
{
return;
}
mExpandedStoiTranspose.resize(NumExpandedReactions, NumSpecies);
const C_FLOAT64 *pStoi = Stoi.array();
const C_FLOAT64 *pStoiEnd = pStoi + Stoi.size();
const C_FLOAT64 *pStoiRowEnd;
C_INT64 *pExpandedStoiTranspose;
C_INT64 *pExpandedStoiTransposeColumn = mExpandedStoiTranspose.array();
std::vector< const CReaction * >::const_iterator itReactionPivot;
std::vector< const CReaction * >::const_iterator endReactionPivot;
std::vector< std::pair< size_t, bool > >::const_iterator itReactionExpansion;
for (; pStoi != pStoiEnd; ++pExpandedStoiTransposeColumn)
{
pStoiRowEnd = pStoi + NumReactions;
pExpandedStoiTranspose = pExpandedStoiTransposeColumn;
itReactionExpansion = mReactionForward.begin();
for (; pStoi < pStoiRowEnd; ++pStoi, pExpandedStoiTranspose += NumSpecies, ++itReactionExpansion)
{
// TODO We should check the we have integer stoichiometry.
if (itReactionExpansion->second == false)
{
*pExpandedStoiTranspose = -floor(*pStoi + 0.5);
// Advance the iterators
++itReactionExpansion;
pExpandedStoiTranspose += NumSpecies;
}
*pExpandedStoiTranspose = floor(*pStoi + 0.5);
}
}
// Calculate the kernel of the matrix
CMatrix< C_INT64 > ExpandedStoiTranspose(mExpandedStoiTranspose);
CalculateKernel(ExpandedStoiTranspose, kernelInt, mReactionPivot);
return;
}
