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Commit 171b58e2 authored by laurentBerger's avatar laurentBerger
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Example BLOB_MSER

parent 6b9e273f
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samples/cpp/BLOB_MSER.cpp
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......@@ -9,7 +9,7 @@ static void help()
{
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";
}
......@@ -45,6 +45,53 @@ struct MSERParams
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[])
......@@ -52,7 +99,7 @@ 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)
{
......@@ -69,11 +116,13 @@ int main(int argc, char *argv[])
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;
......@@ -83,7 +132,7 @@ int main(int argc, char *argv[])
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;
......@@ -91,7 +140,6 @@ int main(int argc, char *argv[])
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
......@@ -99,35 +147,58 @@ int main(int argc, char *argv[])
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().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;
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++)
......@@ -135,10 +206,13 @@ int main(int argc, char *argv[])
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
......@@ -167,7 +241,6 @@ int main(int argc, char *argv[])
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)
{
......@@ -194,12 +267,12 @@ int main(int argc, char *argv[])
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;
......
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