bool intersects(const Rect &other) const {
Point topLeft, topRight, bottomLeft, bottomRight;
// Check if points of self are contained within other
cornerPoints(topLeft, topRight, bottomLeft, bottomRight);
if (other.contains(topLeft) || other.contains(topRight) || other.contains(bottomLeft) || other.contains(bottomRight)) {
return true;
}
// Check if points of other are contained within self
other.cornerPoints(topLeft, topRight, bottomLeft, bottomRight);
if (contains(topLeft) || contains(topRight) || contains(bottomLeft) || contains(bottomRight)) {
return true;
}
return false;
}
std::vector<Blob> BlobCheck::CheckIfBlobIsLicensePlate(std::vector<Blob> &blobobjects, std::vector< std::vector<int> > blobMap) {
std::vector<Blob> validBlobs;
//check if blob of possible licenseplate
for (std::vector<Blob>::iterator it = blobobjects.begin(); it != blobobjects.end(); ++it) {
double ratio = it->getRatio();
if (ratio >= 2.1 && ratio <= 5.5) {
int edgeCounter = 0;
int lastBlobId = 0;
int smallY = it->getSmallestY();
int smallX = it->getSmallestX();
int bigY = it->getBiggestY();
int bigX = it->getBiggestX();
int y = ((bigY - smallY) / 2) + smallY;
for (int x = smallX; x < bigX; x++){
if (blobMap[y][x] != lastBlobId){
edgeCounter++;
lastBlobId = blobMap[y][x];
}
}
if (edgeCounter >= 5)
validBlobs.insert(validBlobs.end(), *it);
}
}
//std::cout << "validBlobs: " << validBlobs.size() << std::endl;
for (std::vector<Blob>::iterator it = validBlobs.begin(); it != validBlobs.end(); it++) {
int blobId = it->getId();
int h = it->getHeight();
bool labelFound = false;
int cornerTLY = -1;
int cornerTLX = -1;
int cornerTRY = -1;
int cornerTRX = -1;
int cornerBLY = -1;
int cornerBLX = -1;
int cornerBRY = -1;
int cornerBRX = -1;
int minFlatRate = 2;
int lastY = -1;
int flatCnt = 0;
int smallY = it->getSmallestY();
int smallX = it->getSmallestX();
int bigY = it->getBiggestY();
int bigX = it->getBiggestX();
int halfX = smallX + ((bigX - smallX) / 2);
int halfY = smallY + ((bigY - smallY) / 2);
//Top Left
for (int x = halfX; x > smallX; x--) {
for (int y = smallY; y < bigY && labelFound == false; y++) {
//We found the label we are looking for.
if (blobMap[y][x] == blobId) {
labelFound = true;
if (lastY == -1) lastY = y;
if (y == lastY) {
flatCnt++;
if (flatCnt >= minFlatRate && y < halfY) {
cornerTLY = y;
cornerTLX = x;
}
}
else {
flatCnt = 0;
}
lastY = y;
}
}
labelFound = false;
}
flatCnt = 0;
lastY = -1;
//Top right
for (int x = halfX; x < bigX; x++) {
for (int y = smallY; y < bigY && labelFound == false; y++) {
//We found the label we are looking for.
if (blobMap[y][x] == blobId) {
labelFound = true;
if (lastY == -1) lastY = y;
if (y == lastY) {
flatCnt++;
if (flatCnt >= minFlatRate && y < halfY) {
cornerTRY = y;
cornerTRX = x;
}
}
else {
flatCnt = 0;
}
lastY = y;
}
}
labelFound = false;
}
flatCnt = 0;
lastY = -1;
// Bot left
for (int x = halfX; x > smallX; x--) {
for (int y = bigY; y > smallY && labelFound == false; y--) {
//We found the label we are looking for.
if (blobMap[y][x] == blobId) {
labelFound = true;
if (lastY == -1) lastY = y;
if (y == lastY) {
flatCnt++;
if (flatCnt >= minFlatRate && y > halfY) {
cornerBLY = y;
cornerBLX = x;
}
}
else {
flatCnt = 0;
}
lastY = y;
}
}
labelFound = false;
}
flatCnt = 0;
lastY = -1;
//Bot right
for (int x = halfX; x < bigX; x++) {
for (int y = bigY; y > smallY && labelFound == false; y--) {
//We found the label we are looking for.
if (blobMap[y][x] == blobId) {
labelFound = true;
if (lastY == -1) lastY = y;
if (y == lastY) {
flatCnt++;
if (flatCnt >= minFlatRate && y > halfY) {
cornerBRY = y;
cornerBRX = x;
}
}
else {
flatCnt = 0;
}
lastY = y;
}
}
labelFound = false;
}
std::vector<int> cornerPoints(8);
cornerPoints[0] = cornerTLX;
cornerPoints[1] = cornerTLY;
cornerPoints[2] = cornerTRX;
cornerPoints[3] = cornerTRY;
cornerPoints[4] = cornerBLX;
cornerPoints[5] = cornerBLY;
cornerPoints[6] = cornerBRX;
cornerPoints[7] = cornerBRY;
it->setCornerPoints(cornerPoints);
}
return validBlobs;
}
