{
cout << "\n This program demonstrates how to use BLOB and MSER to detect region \n"
"Usage: \n"
- " ./BLOB_MSER <image1(../data/basketball1.png as default)>\n"
+ " ./BLOB_MSER <image1(../data/forme2.jpg as default)>\n"
"Press a key when image window is active to change descriptor";
}
int edgeBlurSize;
};
+String Legende(SimpleBlobDetector::Params &pAct)
+{
+ String s="";
+ if (pAct.filterByArea)
+ {
+ String inf = static_cast<ostringstream*>(&(ostringstream() << pAct.minArea))->str();
+ String sup = static_cast<ostringstream*>(&(ostringstream() << pAct.maxArea))->str();
+ s = " Area range [" + inf + " to " + sup + "]";
+ }
+ if (pAct.filterByCircularity)
+ {
+ String inf = static_cast<ostringstream*>(&(ostringstream() << pAct.minCircularity))->str();
+ String sup = static_cast<ostringstream*>(&(ostringstream() << pAct.maxCircularity))->str();
+ if (s.length()==0)
+ s = " Circularity range [" + inf + " to " + sup + "]";
+ else
+ s += " AND Circularity range [" + inf + " to " + sup + "]";
+ }
+ if (pAct.filterByColor)
+ {
+ String inf = static_cast<ostringstream*>(&(ostringstream() << pAct.blobColor))->str();
+ if (s.length() == 0)
+ s = " Blob color " + inf;
+ else
+ s += " AND Blob color " + inf;
+ }
+ if (pAct.filterByConvexity)
+ {
+ String inf = static_cast<ostringstream*>(&(ostringstream() << pAct.minConvexity))->str();
+ String sup = static_cast<ostringstream*>(&(ostringstream() << pAct.maxConvexity))->str();
+ if (s.length() == 0)
+ s = " Convexity range[" + inf + " to " + sup + "]";
+ else
+ s += " AND Convexity range[" + inf + " to " + sup + "]";
+ }
+ if (pAct.filterByInertia)
+ {
+ String inf = static_cast<ostringstream*>(&(ostringstream() << pAct.minInertiaRatio))->str();
+ String sup = static_cast<ostringstream*>(&(ostringstream() << pAct.maxInertiaRatio))->str();
+ if (s.length() == 0)
+ s = " Inertia ratio range [" + inf + " to " + sup + "]";
+ else
+ s += " AND Inertia ratio range [" + inf + " to " + sup + "]";
+ }
+ return s;
+}
+
int main(int argc, char *argv[])
vector<String> fileName;
if (argc == 1)
{
- fileName.push_back("../data/forme.jpg");
+ fileName.push_back("../data/BLOB_MSER.bmp");
}
else if (argc == 2)
{
cout << "Image " << fileName[0] << " is empty or cannot be found\n";
return(0);
}
- GaussianBlur(imgOrig,img,Size(11,11),5,5);
+ GaussianBlur(imgOrig,img,Size(11,11),0.1,0.1);
+
SimpleBlobDetector::Params pDefaultBLOB;
+ MSERParams pDefaultMSER;
// This is default parameters for SimpleBlobDetector
pDefaultBLOB.thresholdStep = 10;
- pDefaultBLOB.minThreshold = 1;
+ pDefaultBLOB.minThreshold = 10;
pDefaultBLOB.maxThreshold = 220;
pDefaultBLOB.minRepeatability = 2;
pDefaultBLOB.minDistBetweenBlobs = 10;
pDefaultBLOB.minArea = 25;
pDefaultBLOB.maxArea = 5000;
pDefaultBLOB.filterByCircularity = false;
- pDefaultBLOB.minCircularity = 0.8f;
+ pDefaultBLOB.minCircularity = 0.9f;
pDefaultBLOB.maxCircularity = std::numeric_limits<float>::max();
pDefaultBLOB.filterByInertia = false;
pDefaultBLOB.minInertiaRatio = 0.1f;
pDefaultBLOB.filterByConvexity = false;
pDefaultBLOB.minConvexity = 0.95f;
pDefaultBLOB.maxConvexity = std::numeric_limits<float>::max();
- MSERParams pDefaultMSER;
// Descriptor array (BLOB or MSER)
vector<String> typeDesc;
// Param array for BLOB
vector<SimpleBlobDetector::Params>::iterator itBLOB;
// Param array for MSER
vector<MSERParams> pMSER;
+ vector<MSERParams>::iterator itMSER;
// Color palette
vector<Vec3b> palette;
for (int i=0;i<65536;i++)
palette.push_back(Vec3b(rand(),rand(),rand()));
help();
+ typeDesc.push_back("MSER");
+ pMSER.push_back(pDefaultMSER);
+ pMSER.back().minArea = 1;
+ pMSER.back().maxArea = img.rows*img.cols;
+
+ typeDesc.push_back("BLOB");
+ pBLOB.push_back(pDefaultBLOB);
+ pBLOB.back().filterByColor = true;
+ pBLOB.back().blobColor = 255;
// This descriptor are going to be detect and compute 4 BLOBS with 4 differents params
+ // Param for first BLOB detector we want all
typeDesc.push_back("BLOB"); // see http://docs.opencv.org/trunk/d0/d7a/classcv_1_1SimpleBlobDetector.html
pBLOB.push_back(pDefaultBLOB);
pBLOB.back().filterByArea = true;
pBLOB.back().minArea = 1;
pBLOB.back().maxArea = img.rows*img.cols;
+ // Param for second BLOB detector we want area between 500 and 2900 pixels
typeDesc.push_back("BLOB");
pBLOB.push_back(pDefaultBLOB);
pBLOB.back().filterByArea = true;
- pBLOB.back().maxArea = img.rows*img.cols;
- pBLOB.back().filterByCircularity = true;
+ pBLOB.back().minArea = 500;
+ pBLOB.back().maxArea = 2900;
+ // Param for third BLOB detector we want only circular object
typeDesc.push_back("BLOB");
pBLOB.push_back(pDefaultBLOB);
+ pBLOB.back().filterByCircularity = true;
+ // Param for Fourth BLOB detector we want ratio inertia
+ typeDesc.push_back("BLOB");
+ pBLOB.push_back(pDefaultBLOB);
pBLOB.back().filterByInertia = true;
- typeDesc.push_back("BLOB");
+ pBLOB.back().minInertiaRatio = 0;
+ pBLOB.back().maxInertiaRatio = 0.2;
+ // Param for Fourth BLOB detector we want ratio inertia
+ typeDesc.push_back("BLOB");
pBLOB.push_back(pDefaultBLOB);
- pBLOB.back().filterByColor = true;
- pBLOB.back().blobColor = 60;
- typeDesc.push_back("MSER");
- itBLOB=pBLOB.begin();
+ pBLOB.back().filterByConvexity = true;
+ pBLOB.back().minConvexity = 0.;
+ pBLOB.back().maxConvexity = 0.9;
+
+
+ itBLOB = pBLOB.begin();
+ itMSER = pMSER.begin();
vector<double> desMethCmp;
Ptr<Feature2D> b;
-
+ String label;
// Descriptor loop
vector<String>::iterator itDesc;
for (itDesc = typeDesc.begin(); itDesc != typeDesc.end(); itDesc++)
vector<KeyPoint> keyImg1;
if (*itDesc == "BLOB"){
b = SimpleBlobDetector::create(*itBLOB);
+ label=Legende(*itBLOB);
+
itBLOB++;
}
if (*itDesc == "MSER"){
- b = MSER::create();
- }
+ b = MSER::create(itMSER->delta, itMSER->minArea,itMSER->maxArea,itMSER->maxVariation,itMSER->minDiversity,itMSER->maxEvolution,
+ itMSER->areaThreshold,itMSER->minMargin,itMSER->edgeBlurSize);
+ }
try {
// We can detect keypoint with detect method
vector<KeyPoint> keyImg;
int i=0;
for (vector<KeyPoint>::iterator k=keyImg.begin();k!=keyImg.end();k++,i++)
circle(result,k->pt,k->size,palette[i%65536]);
-
}
if (b.dynamicCast<MSER>() != NULL)
{
for (vector <Point>::iterator itp = region[i].begin(); itp != region[i].end(); itp++)
{
- result.at<Vec3b>(itp->y, itp->x) += palette[i % 65536];
+ result.at<Vec3b>(itp->y, itp->x) = Vec3b(0,255,255);
}
}
}
- namedWindow(*itDesc , WINDOW_AUTOSIZE);
- imshow(*itDesc, result);
+ namedWindow(*itDesc+label , WINDOW_AUTOSIZE);
+ imshow(*itDesc + label, result);
imshow("Original", img);
FileStorage fs(*itDesc + "_" + fileName[0] + ".xml", FileStorage::WRITE);
fs<<*itDesc<<keyImg;