running out of memory? blobextraction
hey
Im fairly new at C++. Im doing a project where i need to do some blobdetection, but its giving me trouble. Im using the grassfire method to register the blob. but the problem happens when i reach an end and starts backtracking in order to get every connected pixel
im using openCV
there is no error message the program just stops working
can anyone tell my whats wrong because i just cant see it.
Code:
#include "testApp.h"
//--------------------------------------------------------------
struct coordinate
{
unsigned int x, y;
void * data;
};
struct blob
{
coordinate min, max;
coordinate center;
int area;
};
void checkblob(unsigned int row,unsigned int coloumn,unsigned int karen[][448]);
void testApp::setup(){
//loading and converting the image to grayscale
testImage.loadImage("fabia.jpg");
farveTest.allocate(testImage.getWidth(),testImage.getHeight());
farveTest.setFromPixels(testImage.getPixels(),testImage.getWidth(),testImage.getHeight());
shTest.allocate(testImage.getWidth(),testImage.getHeight());
shTest = farveTest;
tresholdTest.allocate(testImage.getWidth(),testImage.getHeight());
outputPic.allocate(testImage.getWidth(),testImage.getHeight());
IplImage* cvImg = shTest.getCvImage();
IplImage* cvImg2 = tresholdTest.getCvImage();
IplImage* cvImg3 = outputPic.getCvImage();
int hoejde = shTest.getHeight();
int bredde = shTest.getWidth();
//tresholding and converting my image to a 2d array
unsigned int myArray[336][448];
for(int y = 0; y < cvImg->height; y ++)
{
uchar* ptr = (uchar*)(cvImg->imageData + y * cvImg->widthStep);
uchar* ptr2 = (uchar*)(cvImg2->imageData + y * cvImg2->widthStep);
for(int x = 0; x <cvImg->width; x ++)
{
if(ptr[x] < 200)
{
ptr2[x]= 0;
myArray[y][x] = 0;
}
else
{
ptr2[x] = 255;
myArray[y][x] = 255;
}
}
}
//running checkblob function on white pixels
for(unsigned int y=0;y<336;y++)
{
for(unsigned int x = 0;x<448;x++)
{
if(myArray[y][x] == 255)
{
myArray[y][x]=5;
checkblob(y,x,myArray);
}
}
}
}
//--------------------------------------------------------------
void testApp::update(){
}
//--------------------------------------------------------------
void testApp::draw(){
shTest.draw(testImage.getWidth(),0);
farveTest.draw(0,0);
tresholdTest.draw(0,testImage.getHeight());
outputPic.draw(testImage.getWidth(),testImage.getHeight());
}
//--------------------------------------------------------------
void testApp::keyPressed(int key){
}
//--------------------------------------------------------------
void testApp::keyReleased(int key){
}
//--------------------------------------------------------------
void testApp::mouseMoved(int x, int y ){
}
//--------------------------------------------------------------
void testApp::mouseDragged(int x, int y, int button){
}
//--------------------------------------------------------------
void testApp::mousePressed(int x, int y, int button){
}
//--------------------------------------------------------------
void testApp::mouseReleased(int x, int y, int button){
}
//--------------------------------------------------------------
void testApp::windowResized(int w, int h){
}
void checkblob(unsigned int row,unsigned int coloumn,unsigned int karen[][448])
{
int blobid;
vector< vector<coordinate> > blobs(20);
if(karen[row][coloumn]==255)
{
karen[row][coloumn]=5;
coordinate coordData = {coloumn,row};
blobs[blobid].push_back(coordData);
}
int treshold = 255;
if(karen[row][(coloumn+1)] == 255)
{
karen[row][(coloumn+1)] = 1;
coordinate coordData = {coloumn+1,row};
blobs[blobid].push_back(coordData);
checkblob(row,(coloumn+1),karen);
}
else if(karen[(row+1)][coloumn] == treshold)
{
karen[(row+1)][coloumn] = 2;
coordinate coordData = {coloumn,row+1};
blobs[blobid].push_back(coordData);
checkblob((row+1),coloumn,karen);
}
else if(karen[row][(coloumn-1)] == treshold)
{
karen[row][(coloumn-1)] = 3;
coordinate coordData = {coloumn-1,row};
blobs[blobid].push_back(coordData);
checkblob(row,(coloumn-1),karen);
}
else if(karen[(row-1)][coloumn] == treshold)
{
karen[(row-1)][coloumn] = 4;
coordinate coordData = {coloumn,row-1};
blobs[blobid].push_back(coordData);
checkblob((row-1),coloumn,karen);
}
else
{
//backtracking to find every pixel in the blob.
switch(karen[row][coloumn])
{
case 1:
checkblob(row,(coloumn-1),karen);
break;
case 2:
checkblob(row-1,coloumn,karen);
break;
case 3:
checkblob(row,(coloumn+1),karen);
break;
case 4:
checkblob(row+1,coloumn,karen);
break;
case 5:
blobid++;
break;
default:
blobid++;
cout<<blobid<<endl;
break;
}
}
}
