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interactivesegmentation.cpp
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interactivesegmentation.cpp
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#include <QtGui>
#include "interactivesegmentation.h"
#include "SLIC.h"
//#include <fstream>
#include <iostream>
#include <QTextStream>
#include <QFile>
#include <QImage>
#include <vector>
#define max(a,b) (((a) > (b)) ? (a) : (b))
#define min(a,b) (((a) < (b)) ? (a) : (b))
#define absolut(a) (((a) > (0)) ? (a) : (-1*(a)))
#define HOR_TRANS 1 // horizontal translation
#define FOC_LENGTH 12 // focal length
#define DEFAULT_SCALE 1.1 // magnetization scale
ISegmentation::ISegmentation()
{
isMerge = false;
isFirstImage = true;
reset();
sT = new SegmentationThread;
sT->setQueues(&queueBG,&queueFG);
this->mSegmentationMethod = BATCH;
}
void ISegmentation::setSegmentationMethod(METHOD type){
this->mSegmentationMethod = type;
if(type==this->COLORING)
sT->start(QThread::NormalPriority);
}
void ISegmentation::reset(){
if(mSegmentationMethod==COLORING)
{
sT->reset();
sT->wait(100);
}
queueBG.clear();
queueFG.clear();
gCut.reset();
}
int ISegmentation::getMinDistSP(int id)
{
float capp;
float minDist;
int minID;
minID = 0;
capp = (regionNode[id].meanR - regionNode[regionNode[id].neighborID[0]].meanR)*(regionNode[id].meanR - regionNode[regionNode[id].neighborID[0]].meanR);
capp += (regionNode[id].meanG - regionNode[regionNode[id].neighborID[0]].meanG)*(regionNode[id].meanG - regionNode[regionNode[id].neighborID[0]].meanG);
capp += (regionNode[id].meanB - regionNode[regionNode[id].neighborID[0]].meanB)*(regionNode[id].meanB - regionNode[regionNode[id].neighborID[0]].meanB);
minDist = capp;
for(int i=1;i<regionNode[id].neighborNum;i++)
{
capp = (regionNode[id].meanR - regionNode[regionNode[id].neighborID[i]].meanR)*(regionNode[id].meanR - regionNode[regionNode[id].neighborID[i]].meanR);
capp += (regionNode[id].meanG - regionNode[regionNode[id].neighborID[i]].meanG)*(regionNode[id].meanG - regionNode[regionNode[id].neighborID[i]].meanG);
capp += (regionNode[id].meanB - regionNode[regionNode[id].neighborID[i]].meanB)*(regionNode[id].meanB - regionNode[regionNode[id].neighborID[i]].meanB);
if(capp<minDist)
{
minDist=capp;
minID = regionNode[id].neighborID[i];
}
}
return minID;
}
void ISegmentation::mergeSP(int id)
{
if(regionNode[id].neighborNum==0)
return;
int curID;
vector<int> stackSP;
stackSP.push_back(id);
while(stackSP.size()!=0)
{
curID = stackSP.back();
stackSP.pop_back();
for(int i=0;i<regionNode[curID].neighborNum;i++)
if(regionNode[regionNode[curID].neighborID[i]].neighborNum!=0)
if((getMinDistSP(curID)==regionNode[curID].neighborID[i])&&(curID==getMinDistSP(regionNode[curID].neighborID[i])))
if(regionNode[regionNode[curID].neighborID[i]].groupID!=1)
{
regionNode[regionNode[curID].neighborID[i]].groupID=1;
stackSP.push_back(regionNode[curID].neighborID[i]);
}
}
}
void ISegmentation::insertPoint(int x,int y,bool isFG){
if((x>=param.width)||(x<0)||(y>=param.height)||(y<0))\
return;
if(isFG){
queueFG.push_back(SegmentID[y*param.width+x]);
if(mSegmentationMethod==BATCH)//If coloring
gCut.add2FG(SegmentID[y*param.width+x]);
if(mSegmentationMethod==NOGCUT)
{
regionNode[SegmentID[y*param.width+x]].groupID = 1;
if(isMerge)
mergeSP(SegmentID[y*param.width+x]);
}
}else{
queueBG.push_back(SegmentID[y*param.width+x]);
if(mSegmentationMethod==BATCH)
gCut.add2BG(SegmentID[y*param.width+x]);
if(mSegmentationMethod==NOGCUT)
{
if(regionNode[SegmentID[y*param.width+x]].groupID == 1)
regionNode[SegmentID[y*param.width+x]].groupID = 2;
for(int l=0;l<queueFG.size();l++)
if(queueBG[l]==SegmentID[y*param.width+x]){
queueBG.erase(queueBG.begin()+l);
break;
}
}
}
}
void ISegmentation::setImage(QImage* im){
brushMap = new bool[param.width*param.height];
inputImage = *im;
depthMap = QImage(inputImage.size(), QImage::Format_RGB32);
leftView = QImage(inputImage.size(), QImage::Format_RGB32);
rightView = QImage(inputImage.size(), QImage::Format_RGB32);
anaglyphImage = QImage(inputImage.size(), QImage::Format_RGB32);
onlyForeground = QImage(inputImage.size(), QImage::Format_RGB32);
onlyBackground = QImage(inputImage.size(), QImage::Format_RGB32);
enlargedForeground = QImage(inputImage.size(), QImage::Format_RGB32);
filledBackground = QImage(inputImage.size(), QImage::Format_RGB32);
alphaBlend = QImage(inputImage.size(), QImage::Format_RGB32);
leftAlpha = QImage(inputImage.size(), QImage::Format_RGB32);
leftFg = QImage(inputImage.size(), QImage::Format_RGB32);
leftBg = QImage(inputImage.size(), QImage::Format_RGB32);
FGLocation = 0;
BGLocation = 0;
matteWidth = 5;
FGEnlargementMode = 0;
blurMode = 0;
}
void ISegmentation::overSegment(){
if(isFirstImage)
{
initOverSegment();
isFirstImage=false;
}
initOSImage();
int width,height;
width = param.width;
height = param.height;
QColor c;
unsigned int* ubuff = new unsigned int[width*height];
int r,g,b;
for(int i=0;i<height;i++)
for(int j=0;j<width;j++)
{
c = inputImage.pixel(j,i);
r=c.red();
g=c.green();
b=c.blue();
ubuff[i*width+j]= (r<<16) + (g<<8) + (b);
}
int blockSize=param.blockSize;
int numlabels = 0;
int m_spcount = 1000 ;
int m_compactness = 20;
SLIC slic;
slic.DoSuperpixelSegmentation_ForGivenK(ubuff, width, height, SegmentID, numlabels, m_spcount, m_compactness);
int max =0;
for(int j=0;j<width*height;j++)
if(SegmentID[j]>max)
max=SegmentID[j];
param.segmentNumber = max+1;
createGraphStructure();
gCut.setSegmentNumber(param.segmentNumber);
gCut.setImage(&inputImage);
gCut.setRegionNode(®ionNode);
gCut.setSegmentID(SegmentID);
gCut.width = param.width;
gCut.height = param.height;
sT->setGCUT(&gCut);
for(int i=0;i<param.segmentNumber;i++)
regionNode[i].groupID = 2;
}
void ISegmentation::initOverSegment(){
int blockSize=param.blockSize;
int height=param.height, width=param.width;
int segmentNumber=height*width/(blockSize*blockSize);
param.segmentNumber = segmentNumber;
//memory allocation for the variables
regionNode = new RegionNode[segmentNumber];
SegmentID = (int *) calloc(height* width, sizeof(int));
}
void ISegmentation::initOSImage(){
}
void ISegmentation::drawOSBoundaryOnImage(QImage* im){
int width = param.width;
int height = param.height;
for (int h=1; h<height-1; h++)
{
for (int w=1; w<width-1; w++)
{
if(!((SegmentID[h*width+w]==SegmentID[h*width+w+1])&&(SegmentID[h*width+w]==SegmentID[(h+1)*width+w])))
im->setPixel(w,h,0x80800000);
}
}
}
void ISegmentation::segmentBatch(){
gCut.runGrabCut();
}
void ISegmentation::createGraphStructure(){
static int fCnt = 0;
for(int i=0;i<param.segmentNumber;i++){
regionNode[i].neighborNum=0;
regionNode[i].groupID = 0;
regionNode[i].maxX = 0;
regionNode[i].maxY = 0;
regionNode[i].minX = param.width;
regionNode[i].minY = param.height;
regionNode[i].segmentSize = 0;
regionNode[i].meanB=0;
regionNode[i].meanG=0;
regionNode[i].meanR=0;
for(int j=0;j<10;j++)
{
regionNode[i].boundSize[j]=0;
regionNode[i].neighborDistance[j]=0;
}
}
int* numberOfNeighBoors = new int[param.segmentNumber*param.segmentNumber];
memset(numberOfNeighBoors,0,param.segmentNumber*param.segmentNumber*sizeof(int));
float * neighbDist = new float[param.segmentNumber*param.segmentNumber];
memset(neighbDist,0,sizeof(float)*param.segmentNumber*param.segmentNumber);
for(int w=0;w<param.width-1;w++)
for(int h=0;h<param.height-1;h++)
{
numberOfNeighBoors[SegmentID[h*param.width+w]*param.segmentNumber+SegmentID[h*param.width+w+1]]++;
numberOfNeighBoors[SegmentID[h*param.width+w]*param.segmentNumber+SegmentID[(h+1)*param.width+w]]++;
}
QColor c;
for(int w=0;w<param.width;w++)
for(int h=0;h<param.height;h++)
{
regionNode[SegmentID[h*param.width+w]].segmentSize++;
c = inputImage.pixel(w,h);
regionNode[SegmentID[h*param.width+w]].meanB+=c.blue();
regionNode[SegmentID[h*param.width+w]].meanG+=c.green();
regionNode[SegmentID[h*param.width+w]].meanR+=c.red();
if(w>regionNode[SegmentID[h*param.width+w]].maxX)
regionNode[SegmentID[h*param.width+w]].maxX = w;
if(h>regionNode[SegmentID[h*param.width+w]].maxY)
regionNode[SegmentID[h*param.width+w]].maxY = h;
if(w<regionNode[SegmentID[h*param.width+w]].minX)
regionNode[SegmentID[h*param.width+w]].minX = w;
if(h<regionNode[SegmentID[h*param.width+w]].minY)
regionNode[SegmentID[h*param.width+w]].minY = h;
}
for(int i=0;i<param.segmentNumber;i++)
for(int j=0;j<param.segmentNumber;j++)
{
if(i==j)
continue;
if((numberOfNeighBoors[i*param.segmentNumber+j]!=0)||(numberOfNeighBoors[j*param.segmentNumber+i]!=0))
{
// if(regionNode[i].neighborNum<10)
// {
// regionNode[i].neighborID[regionNode[i].neighborNum]=j;
// regionNode[i].neighborNum++;
// }
if(regionNode[j].neighborNum<10)
{
regionNode[j].neighborID[regionNode[j].neighborNum]=i;
regionNode[j].neighborNum++;
}
}
}
for(int i=0;i<param.segmentNumber;i++)
{
regionNode[i].meanB = regionNode[i].meanB/regionNode[i].segmentSize;
regionNode[i].meanR = regionNode[i].meanR/regionNode[i].segmentSize;
regionNode[i].meanG = regionNode[i].meanG/regionNode[i].segmentSize;
}
int r,g,b;
int binNum=16;
int binDiv = 256/binNum;
int binStep = binNum*binNum*binNum;
int *histData = new int[param.segmentNumber*binStep];
memset(histData,0,sizeof(int)*binStep);
for(int i=0;i<param.width;i++)
for(int j=0;j<param.height;j++)
{
c=inputImage.pixel(i,j);
histData[SegmentID[j*param.width+i]*binStep + ((int)(c.red()/binDiv))*binNum*binNum + ((int)(c.green()/binDiv))*binNum + ((int)(c.blue()/binDiv))]++;
}
for(int i=0;i<param.segmentNumber;i++)
for(int j=0;j<param.segmentNumber;j++)
if(i!=j)
if((numberOfNeighBoors[i*param.segmentNumber+j]!=0)||(numberOfNeighBoors[j*param.segmentNumber+i]!=0))
{
for(int k=0;k<binStep;k++)
{
neighbDist[param.segmentNumber*i+j]+=sqrt(((float)(histData[i*binStep+k]*histData[j*param.segmentNumber+k]))/((float)(regionNode[i].segmentSize*regionNode[j].segmentSize)));
// neighbDist[param.segmentNumber*j+i]+=sqrt(((float)(histData[i*binStep+k]*histData[j*param.segmentNumber+k]))/((float)(regionNode[i].segmentSize*regionNode[j].segmentSize)));
}
}
for(int i=0;i<param.segmentNumber;i++)
{
for(int j=0;j<regionNode[i].neighborNum;j++)
{
regionNode[i].neighborDistance[j]=1/(neighbDist[param.segmentNumber*i+regionNode[i].neighborID[j]]+0.0001);
}
}
//Find the boundary distance
/*
memset(numberOfNeighBoors,0,param.segmentNumber*param.segmentNumber*sizeof(int));
float distTemp;
QColor c2;
for(int w=0;w<param.width-1;w++)
for(int h=0;h<param.height-1;h++)
{
if(SegmentID[h*param.width+w]!=SegmentID[h*param.width+w+1])
{
c=inputImage.pixel(w,h);
c2=inputImage.pixel(w+1,h);
numberOfNeighBoors[param.segmentNumber*SegmentID[h*param.width+w]+SegmentID[h*param.width+w+1]]++;
numberOfNeighBoors[param.segmentNumber*SegmentID[h*param.width+w+1]+SegmentID[h*param.width+w]]++;
distTemp=0;
distTemp+=abs(c.red()-c2.red());
distTemp+=abs(c.blue()-c2.blue());
distTemp+=abs(c.green()-c2.green());
neighbDist[param.segmentNumber*SegmentID[h*param.width+w]+SegmentID[h*param.width+w+1]]+=distTemp/255.0;
neighbDist[param.segmentNumber*SegmentID[h*param.width+w+1]+SegmentID[h*param.width+w]]+=distTemp/255.0;
}
if(SegmentID[h*param.width+w]!=SegmentID[(h+1)*param.width+w])
{
c=inputImage.pixel(w,h);
c2=inputImage.pixel(w,h+1);
numberOfNeighBoors[param.segmentNumber*SegmentID[h*param.width+w]+SegmentID[(h+1)*param.width+w]]++;
numberOfNeighBoors[param.segmentNumber*SegmentID[(h+1)*param.width+w]+SegmentID[h*param.width+w]]++;
distTemp=0;
distTemp+=abs(c.red()-c2.red());
distTemp+=abs(c.blue()-c2.blue());
distTemp+=abs(c.green()-c2.green());
neighbDist[param.segmentNumber*SegmentID[h*param.width+w]+SegmentID[(h+1)*param.width+w]]+=distTemp/255.0;
neighbDist[param.segmentNumber*SegmentID[(h+1)*param.width+w]+SegmentID[h*param.width+w]]+=distTemp/255.0;
}
if(SegmentID[h*param.width+w]!=SegmentID[(h+1)*param.width+w+1])
{
c=inputImage.pixel(w,h);
c2=inputImage.pixel(w+1,h+1);
numberOfNeighBoors[param.segmentNumber*SegmentID[h*param.width+w]+SegmentID[(h+1)*param.width+w+1]]++;
numberOfNeighBoors[param.segmentNumber*SegmentID[(h+1)*param.width+w+1]+SegmentID[h*param.width+w]]++;
distTemp=0;
distTemp+=abs(c.red()-c2.red());
distTemp+=abs(c.blue()-c2.blue());
distTemp+=abs(c.green()-c2.green());
neighbDist[param.segmentNumber*SegmentID[h*param.width+w]+SegmentID[(h+1)*param.width+w+1]]+=distTemp/255.0;
neighbDist[param.segmentNumber*SegmentID[(h+1)*param.width+w+1]+SegmentID[h*param.width+w]]+=distTemp/255.0;
}
}
float r1,r2,g1,g2,b1,b2,h1,h2,s1,s2,v1,v2;
float mx1,mn1,mx2,mn2,delta1,delta2;
for(int i=0;i<param.segmentNumber;i++)
{
r1 = regionNode[i].meanR;
g1 = regionNode[i].meanG;
b1 = regionNode[i].meanB;
mx1 = max(r1,max(g1,b1));
mn1 = min(r1,min(g1,b1));
delta1 = mx1-mn1;
v1 = mx1;
if(delta1==0)
{
h1=0;
}else{
if(r1==mx1)
{
h1 = (g1 - b1)/delta1;
}else if(g1==mx1)
{
h1 = 2 + (b1-r1)/delta1;
}else{
h1 = 4 + (r1-g1)/delta1;
}
}
if(delta1==0)
{
s1=0;
}else{
s1=delta1/mx1;
}
for(int j=0;j<regionNode[i].neighborNum;j++)
{
r2 = regionNode[regionNode[i].neighborID[j]].meanR;
g2 = regionNode[regionNode[i].neighborID[j]].meanG;
b2 = regionNode[regionNode[i].neighborID[j]].meanB;
mx2 = max(r2,max(g2,b2));
mn2 = min(r2,min(g2,b2));
delta2 = mx2-mn2;
v2 = mx2;
if(delta2==0)
{
h2=0;
}else{
if(r2==mx2)
{
h2 = (g2 - b2)/delta2;
}else if(g2==mx2)
{
h2 = 2 + (b2-r2)/delta2;
}else{
h2 = 4 + (r2-g2)/delta2;
}
}
if(delta2==0)
{
s2=0;
}else{
s2=delta2/mx2;
}
regionNode[i].boundSize[j]=numberOfNeighBoors[param.segmentNumber*i+regionNode[i].neighborID[j]];
// regionNode[i].neighborDistance[j]=neighbDist[param.segmentNumber*i+regionNode[i].neighborID[j]]/(regionNode[i].boundSize[j]);
// regionNode[i].neighborDistance[j]= abs(regionNode[i].meanR-regionNode[regionNode[i].neighborID[j]].meanR)+abs(regionNode[i].meanG-regionNode[regionNode[i].neighborID[j]].meanG)+abs(regionNode[i].meanB-regionNode[regionNode[i].neighborID[j]].meanB);
// regionNode[i].neighborDistance[j]= abs(-regionNode[regionNode[i].neighborID[j]].meanR)*abs(regionNode[i].meanR-regionNode[regionNode[i].neighborID[j]].meanR)+abs(regionNode[i].meanG-regionNode[regionNode[i].neighborID[j]].meanG)*abs(regionNode[i].meanG-regionNode[regionNode[i].neighborID[j]].meanG)+abs(regionNode[i].meanB-regionNode[regionNode[i].neighborID[j]].meanB)*abs(regionNode[i].meanB-regionNode[regionNode[i].neighborID[j]].meanB);
// regionNode[i].neighborDistance[j] = sqrt((double)((h1-h2)*(h1-h2)+(s1-s2)*(s1-s2)+(v1-v2)*(v1-v2)));
regionNode[i].neighborDistance[j] =sqrt((double)((r1-r2)*(r1-r2)+(g1-g2)*(g1-g2)+(b1-b2)*(b1-b2)));
// if(isnan(abs(h1-h2)+abs(s1-s2)+abs(v1-v2)))
// std::cout<<"NAN:"<<h1<<" "<<h2<<" "<<s1<<" "<<s2<<" "<<v1<<" "<<v2<<std::endl;
}
}
*/
delete [] neighbDist;
delete [] numberOfNeighBoors;
}
void ISegmentation::changeView(QImage* im,int which)
{
/*
0 Input
1 Depth
2 Anaglyph
3 Left
4 Right
5 Only FG
6 Enlarged FG
7 Filled BG
8 Alpha Matte
9 Segmentation Result
*/
/*
QSize newSize;
newSize.setHeight(1080);
newSize.setWidth(1920);
QImage left;
QImage right;
left = leftView;
right = rightView;
left = left.scaled(newSize,Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
right = right.scaled(newSize,Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
newSize.setHeight(1080);
newSize.setWidth(3840);
QImage result=QImage(newSize,QImage::Format_RGB32);
int a = result.width();
int b= result.height();
QPainter painter;
for(int x=0;x<1920;x++)
for(int y=0;y<1080;y++)
{
result.setPixel(x,y,left.pixel(x,y));
result.setPixel(x+1920,y,right.pixel(x,y));
}
painter.begin(&result);
painter.setFont(QFont("Ubuntu",64));
painter.setPen(QColor(255,255,255));
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.drawText(100,100,QString("12"));
painter.end();
painter.begin(&result);
painter.setFont(QFont("Ubuntu",64));
painter.setPen(QColor(255,255,255));
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.drawText(100+1920,100,QString("12"));
painter.end();
result.save("Result3D.jpg");
*/
for(int w=0;w<param.width;w++)
for(int h=0;h<param.height;h++)
switch(which){
case 0:
im->setPixel(w,h, inputImage.pixel(w, h));
break;
case 1:
im->setPixel(w,h,depthMap.pixel(w, h));
break;
case 2:
im->setPixel(w,h,anaglyphImage.pixel(w, h));
break;
case 3:
im->setPixel(w,h,leftView.pixel(w, h));
break;
case 4:
im->setPixel(w,h,rightView.pixel(w,h));
break;
case 5:
im->setPixel(w,h,onlyForeground.pixel(w,h));
break;
case 6:
im->setPixel(w,h,enlargedForeground.pixel(w,h));
break;
case 7:
im->setPixel(w,h,filledBackground.pixel(w,h));
break;
case 8:
im->setPixel(w,h,alphaBlend.pixel(w,h));
break;
case 9:
if((regionNode[SegmentID[h*param.width+w]].groupID)==1)
im->setPixel(w,h,inputImage.pixel(w,h));
else
im->setPixel(w,h,qRgb(255,255,255));
break;
}
}
void ISegmentation::computeDepth()
{
// yagiz
int wMax = depthMap.width();
int hMax = depthMap.height();
double dTemp;
depthMap.fill(0);
rightView.fill(0);
leftView.fill(0);
anaglyphImage.fill(0);
onlyForeground.fill(0);
onlyBackground.fill(0);
enlargedForeground.fill(0);
filledBackground.fill(0);
alphaBlend.fill(0);
leftFg.fill(0);
leftBg.fill(0);
leftAlpha.fill(0);
groupIdRight = new int[wMax * hMax];
/*
QSize newSize;
newSize.setHeight(hMax);
newSize.setWidth(wMax);
QImage imSegRes;
imSegRes.load("segMap2.jpg");
imSegRes = imSegRes.scaled(newSize);
QColor c;
for(int y=0;y<hMax;y++)
for(int x=0;x<wMax;x++)
{
c = imSegRes.pixel(x,y);
if((c.red()<10)&&(c.green()<10)&&(c.blue()<10))
groupIdRight[y*wMax+x]=2;
else
groupIdRight[y*wMax+x]=1;
}
*/
for ( int i = 0; i < wMax * hMax; i++)
groupIdRight[i] = regionNode[ SegmentID[i] ].groupID;
modifyFGMap();
for ( int w = 0; w < wMax; w++)
for ( int h = 0; h < hMax; h++)
switch ( groupIdRight[ h * wMax + w ] )
{
case 1:
depthMap.setPixel(w, h, qRgb(1, 1, 1));
break;
case 2:
dTemp = 255 * ( 1 - (double) h / (double) hMax ) + 1;
//depthMap.setPixel(w, h, qRgb(dTemp, dTemp, dTemp));
depthMap.setPixel(w, h, qRgb(255, 255, 255));
break;
}
int gaussRadius = 7;
int tempSum;
QImage depthMapTemp = depthMap;
for ( int h = 0; h < hMax; h++ )
for ( int w = gaussRadius; w < wMax-gaussRadius; w++ )
{
tempSum = 0;
for ( int i = -gaussRadius; i <= gaussRadius; i++ )
tempSum += qRed(depthMapTemp.pixel(w+i, h));
tempSum = tempSum / (2 * gaussRadius + 1);
depthMap.setPixel(w, h, qRgb(tempSum, tempSum, tempSum));
}
if ( FGEnlargementMode == 0 )
{
fillBackground();
if (blurMode != 0)
{
blurBG();
blurFG();
}
computeAlphaMatteMap();
depthBasedRendering();
createAnaglyphImage();
}
else
{
enlargeForeground(DEFAULT_SCALE);
fillBackground2();
if (blurMode != 0)
{
blurBG();
blurFG();
}
computeAlphaMatteMap2();
depthBasedRendering2();
createAnaglyphImage();
}
}
void ISegmentation::depthBasedRendering()
{
int wMax = depthMap.width();
int hMax = depthMap.height();
int wNew;
int pixDepth;
leftView.fill(0);
rightView.fill(0);
// Generate Left Image
groupIdLeft = new int[wMax * hMax];
for ( int i = 0; i < wMax*hMax; i++)
groupIdLeft[i] = 0;
for ( int w = 0; w < wMax; w++)
for ( int h = 0; h < hMax; h++)
{
pixDepth = 1;
wNew = w + FOC_LENGTH * HOR_TRANS / pixDepth - FGLocation * FOC_LENGTH * HOR_TRANS;
if ( (wNew >= 0) && (wNew < wMax) )
{
leftFg.setPixel(wNew, h, onlyForeground.pixel(w, h));
leftAlpha.setPixel(wNew, h, alphaBlend.pixel(w, h));
if ( groupIdRight[h * wMax + w] == 1)
groupIdLeft[ h * wMax + wNew ] = 1;
}
}
for ( int w = 0; w < wMax; w++)
for ( int h = 0; h < hMax; h++)
{
pixDepth = 255 * ( 1 - (double) h / (double) hMax ) + 1;
wNew = w + FOC_LENGTH * HOR_TRANS / pixDepth - BGLocation * FOC_LENGTH * HOR_TRANS;
if ( (wNew >= 0) && (wNew < wMax) )
{
leftBg.setPixel(wNew, h, filledBackground.pixel(w, h));
}
}
double alphaCoeff;
int tempR, tempG, tempB;
for ( int w = 0; w < wMax; w++)
for ( int h = 0; h < hMax; h++)
{
if ( groupIdLeft[h * wMax + w] != 1 )
{
leftView.setPixel( w, h, leftBg.pixel(w,h));
continue;
}
alphaCoeff = (double)qRed(leftAlpha.pixel(w,h)) / 255;
tempR = alphaCoeff * (double)qRed(leftFg.pixel(w,h)) +
( 1 - alphaCoeff ) * (double)qRed(leftBg.pixel(w,h));
tempG = alphaCoeff * (double)qGreen(leftFg.pixel(w,h)) +
( 1 - alphaCoeff ) * (double)qGreen(leftBg.pixel(w,h));
tempB = alphaCoeff * (double)qBlue(leftFg.pixel(w,h)) +
( 1 - alphaCoeff ) * (double)qBlue(leftBg.pixel(w,h));
leftView.setPixel( w, h, qRgb(tempR, tempG, tempB));
}
// Generate Right Image
// rightView = inputImage;
for ( int w = 0; w < wMax; w++)
for ( int h = 0; h < hMax; h++)
{
if ( groupIdRight[h * wMax + w] != 1 )
rightView.setPixel( w, h, filledBackground.pixel(w,h));
else
rightView.setPixel( w, h, onlyForeground.pixel(w,h));
}
}
void ISegmentation::fillBackground()
{
int hMax = depthMap.height();
int wMax = depthMap.width();
for ( int w = 0; w < wMax; w++)
for ( int h = 0; h < hMax; h++)
switch ( groupIdRight[ h * wMax + w ] )
{
case 1:
onlyForeground.setPixel(w, h, inputImage.pixel(w, h));
onlyBackground.setPixel(w, h,qRgb(255,255,255));
break;
case 2:
onlyForeground.setPixel(w, h, qRgb(255,255,255));
onlyBackground.setPixel(w, h, inputImage.pixel(w, h));
break;
}
for ( int h = 0; h < hMax; h++ )
for ( int w = 0; w < wMax; w++ )
filledBackground.setPixel(w, h, onlyBackground.pixel(w, h));
if ( groupIdRight[0] != 2 )
filledBackground.setPixel(0, 0, qRgb(100,100,100));
for ( int h = 1; h < hMax; h++ )
if ( groupIdRight[h * wMax ] != 2 )
filledBackground.setPixel(0, h, filledBackground.pixel(0, h-1));
for ( int h = 0; h < hMax; h++ )
for ( int w = 1; w < wMax; w++ )
if ( groupIdRight[h * wMax + w] == 1 )
filledBackground.setPixel(w, h, filledBackground.pixel(w-1, h));
}
void ISegmentation::createAnaglyphImage()
{
int wMax = depthMap.width();
int hMax = depthMap.height();
int redCh;
int blueCh;
for ( int w = 0; w < wMax; w++)
for ( int h = 0; h < hMax; h++)
{
blueCh = (qRed(rightView.pixel(w, h)) + qGreen(rightView.pixel(w, h)) + qBlue(rightView.pixel(w, h))) / 3;
redCh = (qRed(leftView.pixel(w, h)) + qGreen(leftView.pixel(w, h)) + qBlue(leftView.pixel(w, h))) / 3;
anaglyphImage.setPixel(w, h, qRgb( redCh, 0, blueCh));
}
}
void ISegmentation::enlargeForeground(double scale = DEFAULT_SCALE)
{
int wMax = depthMap.width();
int hMax = depthMap.height();
double* points;
int fgCounter = 0;
int fgSumH = 0;
int fgSumW = 0;
QPoint topLeft = QPoint(wMax,hMax);
QPoint bottomRight = QPoint(0,0);
// x -> w, y -> h
// Extract foreground and calculate its center of mass
for ( int w = 0; w < wMax; w++)
for ( int h = 0; h < hMax; h++)
switch ( groupIdRight[ h * wMax + w ] )
{
case 1:
onlyForeground.setPixel(w, h, inputImage.pixel(w, h));
onlyBackground.setPixel(w, h, 0);
fgSumH += h;
fgSumW += w;
fgCounter++;
if (w < topLeft.x())
topLeft.setX(w);
if (w > bottomRight.x())
bottomRight.setX(w);
if (h < topLeft.y())
topLeft.setY(h);
if (h > bottomRight.y())
bottomRight.setY(h);
break;
case 2:
onlyForeground.setPixel(w, h, 0);
onlyBackground.setPixel(w, h, inputImage.pixel(w, h));
break;
}
QPoint centerOfMass = QPoint(fgSumW / fgCounter, fgSumH / fgCounter);
double stepSize = 1 / scale;
int pointCountH = ( bottomRight.y() - topLeft.y() ) / stepSize + 150;
int pointCountW = ( bottomRight.x() - topLeft.x() ) / stepSize + 150;
// Make sure odd number of new point, in order to place CoM in the middle
if ( !( pointCountH % 2 ) )
pointCountH++;
if ( !( pointCountW % 2 ) )
pointCountW++;
// Create a 3D vector containing pseudo coordinates
points = new double[pointCountH * pointCountW * 2];
for ( int i = 0; i < pointCountH * pointCountW * 2; i++)
points[i] = 0;
int midPtH = (pointCountH - 1) / 2;
int midPtW = (pointCountW - 1) / 2;
// points[midPtH][midPtW][1] = centerOfMass.x();
// points[midPtH][midPtW][2] = centerOfMass.y();
for (int h = 0; h < pointCountH; h++ )
for ( int w = 0; w < pointCountW; w++ )
{
points[h * pointCountW + w] = centerOfMass.x() - (midPtW - w) * stepSize;
points[h * pointCountW + w + pointCountH * pointCountW] = centerOfMass.y() - (midPtH - h) * stepSize;
if ( points[h * pointCountW + w] < 0 ||
points[h * pointCountW + w] > wMax ||
points[h * pointCountW + w + pointCountH * pointCountW] < 0 ||
points[h * pointCountW + w + pointCountH * pointCountW] > hMax
)
{
points[h * pointCountW + w] = -1;
points[h * pointCountW + w + pointCountH * pointCountW] = -1;
}
}
// Interpolate pixels
double param1, param2;
int neigTLW, neigTLH;
int newValR;
int newValG;
int newValB;
int newCoordW, newCoordH;
groupIdFgEnlarged = new int[wMax * hMax];
enlargedForeground.fill(0);
for ( int i = 0; i < wMax*hMax; i++)
groupIdFgEnlarged[i] = 0;
for (int h = 0; h < pointCountH; h++ )
for ( int w = 0; w < pointCountW; w++ )
{
if ( points[h * pointCountW + w] == -1 )
continue;
neigTLW = floor( points[h * pointCountW + w] );
neigTLH = floor( points[h * pointCountW + w + pointCountH * pointCountW] );
if ( neigTLW + 1 >= wMax || neigTLH +1 >= hMax )
continue;
param1 = points[h * pointCountW + w] - neigTLW;
param2 = points[h * pointCountW + w + pointCountH * pointCountW] - neigTLH;
if ( ( groupIdRight[ neigTLH * wMax + neigTLW ] != 1 ) ||
( groupIdRight[ (neigTLH+1) * wMax + neigTLW ] != 1 ) ||
( groupIdRight[ neigTLH * wMax + (neigTLW+1) ] != 1 ) ||
( groupIdRight[ (neigTLH+1) * wMax + (neigTLW+1) ] != 1 ) )
continue;
newValR = qRed(onlyForeground.pixel(neigTLW, neigTLH)) * (1-param1) * (1-param2)
+ qRed(onlyForeground.pixel(neigTLW + 1, neigTLH)) * (param1) * (1-param2)
+ qRed(onlyForeground.pixel(neigTLW, neigTLH + 1)) * (1-param1) * (param2)
+ qRed(onlyForeground.pixel(neigTLW + 1, neigTLH + 1)) * (param1) * (param2);
newValG = qGreen(onlyForeground.pixel(neigTLW, neigTLH)) * (1-param1) * (1-param2)
+ qGreen(onlyForeground.pixel(neigTLW + 1, neigTLH)) * (param1) * (1-param2)
+ qGreen(onlyForeground.pixel(neigTLW, neigTLH + 1)) * (1-param1) * (param2)
+ qGreen(onlyForeground.pixel(neigTLW + 1, neigTLH + 1)) * (param1) * (param2);
newValB = qBlue(onlyForeground.pixel(neigTLW, neigTLH)) * (1-param1) * (1-param2)
+ qBlue(onlyForeground.pixel(neigTLW + 1, neigTLH)) * (param1) * (1-param2)
+ qBlue(onlyForeground.pixel(neigTLW, neigTLH + 1)) * (1-param1) * (param2)
+ qBlue(onlyForeground.pixel(neigTLW + 1, neigTLH + 1)) * (param1) * (param2);
newCoordW = centerOfMass.x() - (midPtW - w);
newCoordH = centerOfMass.y() - (midPtH - h);
if ( (newCoordW > 0) && (newCoordH > 0) && (newCoordW < wMax) && (newCoordH < hMax) )//&& (newValR > 0))
{
enlargedForeground.setPixel( newCoordW, newCoordH, qRgb(newValR, newValG, newValB) );
groupIdFgEnlarged[newCoordH * wMax + newCoordW] = 1;
}
}
}
void ISegmentation::computeAlphaMatteMap()
{
int hMax = depthMap.height();
int wMax = depthMap.width();
for ( int h = 0; h < hMax; h++)
for ( int w = 0; w < wMax; w++)
if ( groupIdRight[h*wMax + w] == 1 )
alphaBlend.setPixel(w, h, qRgb(255, 255, 255));
else
alphaBlend.setPixel(w, h, 0);
int matteRadius = (matteWidth - 1) / 2;
int matteSize = matteWidth * matteWidth;
// Now apply a low-pass filter, avarage in 3x3 neigborhood
int tempSum;
for ( int h = matteRadius; h < hMax-matteRadius; h++ )
for ( int w = matteRadius; w < wMax-matteRadius; w++ )
{