Skip to content

O
opencv
Commit 8c755552 authored by Paul92's avatar Paul92 Committed by Alexander Alekhin
Browse files
Options

Merge pull request #12032 from Paul92:mser-sample-improvments 

Mser sample improvments (#12032)

* Fixed bug in detect_mser sample
Wrong number of colors used to generate the synthetic images

* Formatting improvements

* Using safer casts

* Improved readability of legend generation

* Various readability fixes in detect_mser sample
parent b117302b
Hide whitespace changes
Inline Side-by-side
Showing with 142 additions and 151 deletions
samples/cpp/detect_mser.cpp
View file @ 8c755552
...@@ -7,6 +7,9 @@ ...@@ -7,6 +7,9 @@
#include <vector> #include <vector>
#include <map> #include <map>
#include <iostream> #include <iostream>
#include <iomanip>
#include <limits>
#include <stdint.h>
#ifdef HAVE_OPENGL #ifdef HAVE_OPENGL
#ifdef _WIN32 #ifdef _WIN32
#define WIN32_LEAN_AND_MEAN 1 #define WIN32_LEAN_AND_MEAN 1
...@@ -36,17 +39,17 @@ static void help() ...@@ -36,17 +39,17 @@ static void help()
cout << "\n This program demonstrates how to use MSER to detect extremal regions \n" cout << "\n This program demonstrates how to use MSER to detect extremal regions \n"
"Usage: \n" "Usage: \n"
" ./detect_mser <image1(without parameter a syntehtic image is used as default)>\n" " ./detect_mser <image1(without parameter a syntehtic image is used as default)>\n"
"Press esc key when image window is active to change descriptor parameter\n" "Press esc key when image window is active to change descriptor parameter\n"
"Press 2, 8, 4, 6, +,- or 5 keys in openGL windows to change view or use mouse\n"; "Press 2, 8, 4, 6, +,- or 5 keys in openGL windows to change view or use mouse\n";
} }
struct MSERParams struct MSERParams
{ {
MSERParams(int _delta = 5, int _min_area = 60, int _max_area = 14400, MSERParams(int _delta = 5, int _min_area = 60, int _max_area = 14400,
double _max_variation = 0.25, double _min_diversity = .2, double _max_variation = 0.25, double _min_diversity = .2,
int _max_evolution = 200, double _area_threshold = 1.01, int _max_evolution = 200, double _area_threshold = 1.01,
double _min_margin = 0.003, int _edge_blur_size = 5) double _min_margin = 0.003, int _edge_blur_size = 5)
{ {
delta = _delta; delta = _delta;
minArea = _min_area; minArea = _min_area;
maxArea = _max_area; maxArea = _max_area;
...@@ -57,7 +60,7 @@ struct MSERParams ...@@ -57,7 +60,7 @@ struct MSERParams
minMargin = _min_margin; minMargin = _min_margin;
edgeBlurSize = _edge_blur_size; edgeBlurSize = _edge_blur_size;
pass2Only = false; pass2Only = false;
} }
int delta; int delta;
int minArea; int minArea;
...@@ -72,30 +75,20 @@ struct MSERParams ...@@ -72,30 +75,20 @@ struct MSERParams
int edgeBlurSize; int edgeBlurSize;
}; };
static String Legende(MSERParams &pAct) static String Legende(const MSERParams &pAct)
{ {
String s=""; ostringstream ss;
String inf = static_cast<const ostringstream&>(ostringstream() << pAct.minArea).str(); ss << "Area[" << pAct.minArea << "," << pAct.maxArea << "] ";
String sup = static_cast<const ostringstream&>(ostringstream() << pAct.maxArea).str(); ss << "del. [" << pAct.delta << "] ";
s = " Area[" + inf + "," + sup + "]"; ss << "var. [" << pAct.maxVariation << "] ";
ss << "div. [" << (int)pAct.minDiversity << "] ";
inf = static_cast<const ostringstream&>(ostringstream() << pAct.delta).str(); ss << "pas. [" << (int)pAct.pass2Only << "] ";
s += " del. [" + inf + "]"; ss << "RGb->evo. [" << pAct.maxEvolution << "] ";
inf = static_cast<const ostringstream&>(ostringstream() << pAct.maxVariation).str(); ss << "are. [" << (int)pAct.areaThreshold << "] ";
s += " var. [" + inf + "]"; ss << "mar. [" << (int)pAct.minMargin << "] ";
inf = static_cast<const ostringstream&>(ostringstream() << (int)pAct.minDiversity).str(); ss << "siz. [" << pAct.edgeBlurSize << "]";
s += " div. [" + inf + "]";
inf = static_cast<const ostringstream&>(ostringstream() << (int)pAct.pass2Only).str(); return ss.str();
s += " pas. [" + inf + "]";
inf = static_cast<const ostringstream&>(ostringstream() << (int)pAct.maxEvolution).str();
s += "RGb-> evo. [" + inf + "]";
inf = static_cast<const ostringstream&>(ostringstream() << (int)pAct.areaThreshold).str();
s += " are. [" + inf + "]";
inf = static_cast<const ostringstream&>(ostringstream() << (int)pAct.minMargin).str();
s += " mar. [" + inf + "]";
inf = static_cast<const ostringstream&>(ostringstream() << (int)pAct.edgeBlurSize).str();
s += " siz. [" + inf + "]";
return s;
} }
...@@ -109,18 +102,28 @@ bool keyPressed=false; ...@@ -109,18 +102,28 @@ bool keyPressed=false;
Vec4f rotAxis(1,0,1,0); Vec4f rotAxis(1,0,1,0);
Vec3f zoom(1,0,0); Vec3f zoom(1,0,0);
float obsX = (float)0, obsY = (float)0, obsZ = (float)-10, tx = (float)0, ty = (float)0; float obsX = 0.f;
float thetaObs = (float)-1.570, phiObs = (float)1.570, rObs = (float)10; float obsY = 0.f;
int prevX=-1,prevY=-1,prevTheta=-1000,prevPhi=-1000; float obsZ = -10.f;
float tx = 0.f;
float ty = 0.f;
float thetaObs = -1.570f;
float phiObs = 1.570f;
float rObs = 10.f;
int prevX = -1;
int prevY = -1;
int prevTheta = -1000;
int prevPhi = -1000;
#ifdef HAVE_OPENGL #ifdef HAVE_OPENGL
struct DrawData struct DrawData
{
{
ogl::Arrays arr; ogl::Arrays arr;
ogl::Texture2D tex; ogl::Texture2D tex;
ogl::Buffer indices; ogl::Buffer indices;
}; };
static void draw(void* userdata) static void draw(void* userdata)
...@@ -167,19 +170,19 @@ static void onMouse(int event, int x, int y, int flags, void*) ...@@ -167,19 +170,19 @@ static void onMouse(int event, int x, int y, int flags, void*)
{ {
if (x - prevTheta<0) if (x - prevTheta<0)
{ {
thetaObs +=(float)0.02; thetaObs += 0.02f;
} }
else if (x - prevTheta>0) else if (x - prevTheta>0)
{ {
thetaObs -= (float)0.02; thetaObs -= 0.02f;
} }
if (y - prevPhi<0) if (y - prevPhi<0)
{ {
phiObs -= (float)0.02; phiObs -= 0.02f;
} }
else if (y - prevPhi>0) else if (y - prevPhi>0)
{ {
phiObs += (float)0.02; phiObs += 0.02f;
} }
prevTheta = x; prevTheta = x;
prevPhi = y; prevPhi = y;
...@@ -187,9 +190,9 @@ static void onMouse(int event, int x, int y, int flags, void*) ...@@ -187,9 +190,9 @@ static void onMouse(int event, int x, int y, int flags, void*)
if (event==EVENT_MOUSEWHEEL) if (event==EVENT_MOUSEWHEEL)
{ {
if (getMouseWheelDelta(flags)>0) if (getMouseWheelDelta(flags)>0)
rObs += (float)0.1; rObs += 0.1f;
else else
rObs -= (float)0.1; rObs -= 0.1f;
} }
float pi = static_cast<float>(CV_PI); float pi = static_cast<float>(CV_PI);
if (thetaObs>pi) if (thetaObs>pi)
...@@ -202,11 +205,11 @@ static void onMouse(int event, int x, int y, int flags, void*) ...@@ -202,11 +205,11 @@ static void onMouse(int event, int x, int y, int flags, void*)
} }
if (phiObs>pi / 2) if (phiObs>pi / 2)
{ {
phiObs = pi / 2 - (float)0.0001; phiObs = pi / 2 - 0.0001f;
} }
if (phiObs<-pi / 2) if (phiObs<-pi / 2)
{ {
phiObs = -pi / 2 + (float)0.00001; phiObs = -pi / 2 + 0.00001f;
} }
if (rObs<0) if (rObs<0)
{ {
...@@ -224,36 +227,37 @@ static void DrawOpenGLMSER(Mat img, Mat result) ...@@ -224,36 +227,37 @@ static void DrawOpenGLMSER(Mat img, Mat result)
cvtColor(img, imgGray, COLOR_BGR2GRAY); cvtColor(img, imgGray, COLOR_BGR2GRAY);
else else
imgGray = img; imgGray = img;
namedWindow("OpenGL", WINDOW_OPENGL); namedWindow("OpenGL", WINDOW_OPENGL);
setMouseCallback("OpenGL", onMouse, NULL); setMouseCallback("OpenGL", onMouse, NULL);
Mat_<Vec3f> vertex(1, img.cols*img.rows); Mat_<Vec3f> vertex(1, img.cols*img.rows);
Mat_<Vec2f> texCoords(1, img.cols*img.rows); Mat_<Vec2f> texCoords(1, img.cols*img.rows);
for (int i = 0, nbPix = 0; i<img.rows; i++) for (int i = 0, nbPix = 0; i<img.rows; i++)
{ {
for (int j = 0; j<img.cols; j++, nbPix++) for (int j = 0; j<img.cols; j++, nbPix++)
{ {
float x = (j) / (float)img.cols; float x = (j) / (float)img.cols;
float y = (i) / (float)img.rows; float y = (i) / (float)img.rows;
vertex.at< Vec3f >(0, nbPix) = Vec3f(float(2 * (x - 0.5)), float(2 * (0.5 - y)), float(imgGray.at<uchar>(i, j) / 512.0)); vertex.at< Vec3f >(0, nbPix) = Vec3f(float(2 * (x - 0.5)), float(2 * (0.5 - y)), float(imgGray.at<uchar>(i, j) / 512.0));
texCoords.at< Vec2f>(0, nbPix) = Vec2f(x, y); texCoords.at< Vec2f>(0, nbPix) = Vec2f(x, y);
}
} }
}
Mat_<int> indices(1, (img.rows - 1)*(6 * img.cols)); Mat_<int> indices(1, (img.rows - 1)*(6 * img.cols));
for (int i = 1, nbPix = 0; i<img.rows; i++) for (int i = 1, nbPix = 0; i<img.rows; i++)
{ {
for (int j = 1; j<img.cols; j++) for (int j = 1; j<img.cols; j++)
{ {
int c = i*img.cols + j; int c = i*img.cols + j;
indices.at<int>(0, nbPix++) = c ; indices.at<int>(0, nbPix++) = c;
indices.at<int>(0, nbPix++) = c - 1; indices.at<int>(0, nbPix++) = c - 1;
indices.at<int>(0, nbPix++) = c- img.cols - 1; indices.at<int>(0, nbPix++) = c - img.cols - 1;
indices.at<int>(0, nbPix++) = c- img.cols - 1; indices.at<int>(0, nbPix++) = c - img.cols - 1;
indices.at<int>(0, nbPix++) = c - img.cols; indices.at<int>(0, nbPix++) = c - img.cols;
indices.at<int>(0, nbPix++) = c ; indices.at<int>(0, nbPix++) = c;
}
} }
}
DrawData *data = new DrawData; DrawData *data = new DrawData;
...@@ -279,7 +283,7 @@ static void DrawOpenGLMSER(Mat img, Mat result) ...@@ -279,7 +283,7 @@ static void DrawOpenGLMSER(Mat img, Mat result)
setOpenGlDrawCallback("OpenGL", draw, data); setOpenGlDrawCallback("OpenGL", draw, data);
for (;;) for (;;)
{ {
updateWindow("OpenGL"); updateWindow("OpenGL");
char key = (char)waitKey(40); char key = (char)waitKey(40);
if (key == 27) if (key == 27)
...@@ -292,27 +296,28 @@ static void DrawOpenGLMSER(Mat img, Mat result) ...@@ -292,27 +296,28 @@ static void DrawOpenGLMSER(Mat img, Mat result)
case '5': case '5':
obsX = 0, obsY = 0, obsZ = -10; obsX = 0, obsY = 0, obsZ = -10;
thetaObs = -pi/2, phiObs = pi/2, rObs = 10; thetaObs = -pi/2, phiObs = pi/2, rObs = 10;
tx=0;ty=0; tx=0; ty=0;
break; break;
case '4': case '4':
thetaObs += (float)0.1; thetaObs += 0.1f;
break; break;
case '6': case '6':
thetaObs -= (float)0.1; thetaObs -= 0.1f;
break; break;
case '2': case '2':
phiObs -= (float).1; phiObs -= 0.1f;
break; break;
case '8': case '8':
phiObs += (float).1; phiObs += 0.1f;
break; break;
case '+': case '+':
rObs -= (float).1; rObs -= 0.1f;
break; break;
case '-': case '-':
rObs += (float).1; rObs += 0.1f;
break; break;
} }
if (thetaObs>pi) if (thetaObs>pi)
{ {
thetaObs = -2 * pi + thetaObs; thetaObs = -2 * pi + thetaObs;
...@@ -320,9 +325,9 @@ static void DrawOpenGLMSER(Mat img, Mat result) ...@@ -320,9 +325,9 @@ static void DrawOpenGLMSER(Mat img, Mat result)
if (thetaObs<-pi) if (thetaObs<-pi)
thetaObs = 2 * pi + thetaObs; thetaObs = 2 * pi + thetaObs;
if (phiObs>pi / 2) if (phiObs>pi / 2)
phiObs = pi / 2 - (float)0.0001; phiObs = pi / 2 - 0.0001f;
if (phiObs<-pi / 2) if (phiObs<-pi / 2)
phiObs = -pi / 2 + (float)0.00001; phiObs = -pi / 2 + 0.00001f;
if (rObs<0) if (rObs<0)
rObs = 0; rObs = 0;
obsX = rObs*cos(thetaObs)*cos(phiObs); obsX = rObs*cos(thetaObs)*cos(phiObs);
...@@ -334,67 +339,59 @@ static void DrawOpenGLMSER(Mat img, Mat result) ...@@ -334,67 +339,59 @@ static void DrawOpenGLMSER(Mat img, Mat result)
} }
#endif #endif
// Add nested rectangles of different widths and colors to an image
static void addNestedRectangles(Mat &img, Point p0, int* width, int *color, int n) {
for (int i = 0; i<n; i++)
{
rectangle(img, Rect(p0, Size(width[i], width[i])), Scalar(color[i]), 1);
p0 += Point((width[i] - width[i + 1]) / 2, (width[i] - width[i + 1]) / 2);
floodFill(img, p0, Scalar(color[i]));
}
}
// Add nested circles of different widths and colors to an image
static void addNestedCircles(Mat &img, Point p0, int *width, int *color, int n) {
for (int i = 0; i<n; i++)
{
circle(img, p0, width[i] / 2, Scalar(color[i]), 1);
floodFill(img, p0, Scalar(color[i]));
}
}
static Mat MakeSyntheticImage() static Mat MakeSyntheticImage()
{ {
const int fond = 0;
Mat img(800, 800, CV_8UC1); Mat img(800, 800, CV_8UC1);
map<int, char> val;
int fond = 0;
img = Scalar(fond); img = Scalar(fond);
val[fond] = 1;
int width1[] = { 390, 380, 300, 290, 280, 270, 260, 250, 210, 190, 150, 100, 80, 70 };
int color1[] = { 80, 180, 160, 140, 120, 100, 90, 110, 170, 150, 140, 100, 220 };
Point p0(10, 10);
int *width, *color;
width = width1; int width[] = { 390, 380, 300, 290, 280, 270, 260, 250, 210, 190, 150, 100, 80, 70 };
color = color1;
for (int i = 0; i<13; i++)
{
rectangle(img, Rect(p0, Size(width[i], width[i])), Scalar(color[i]), 1);
p0 += Point((width[i] - width[i + 1]) / 2, (width[i] - width[i + 1]) / 2);
floodFill(img, p0, Scalar(color[i]));
} int color1[] = { 80, 180, 160, 140, 120, 100, 90, 110, 170, 150, 140, 100, 220 };
int color2[] = { 81, 181, 161, 141, 121, 101, 91, 111, 171, 151, 141, 101, 221 }; int color2[] = { 81, 181, 161, 141, 121, 101, 91, 111, 171, 151, 141, 101, 221 };
color = color2; int color3[] = { 175, 75, 95, 115, 135, 155, 165, 145, 85, 105, 115, 155, 35 };
p0 = Point(200, 600); int color4[] = { 173, 73, 93, 113, 133, 153, 163, 143, 83, 103, 113, 153, 33 };
for (int i = 0; i<13; i++)
{
circle(img, p0, width[i] / 2, Scalar(color[i]), 1);
floodFill(img, p0, Scalar(color[i]));
} addNestedRectangles(img, Point(10, 10), width, color1, 13);
int color3[] = { 175,75,95,115,135,155,165,145,85,105,115,156 }; addNestedCircles(img, Point(200, 600), width, color2, 13);
color = color3;
p0 = Point(410, 10);
for (int i = 0; i<13; i++)
{
rectangle(img, Rect(p0, Size(width[i], width[i])), Scalar(color[i]), 1);
p0 += Point((width[i] - width[i + 1]) / 2, (width[i] - width[i + 1]) / 2);
floodFill(img, p0, Scalar(color[i]));
} addNestedRectangles(img, Point(410, 10), width, color3, 13);
int color4[] = { 173,73,93,113,133,153,163,143,83,103,114,154 }; addNestedCircles(img, Point(600, 600), width, color4, 13);
color = color4;
p0 = Point(600, 600);
for (int i = 0; i<13; i++)
{
circle(img, p0, width[i] / 2, Scalar(color[i]), 1);
floodFill(img, p0, Scalar(color[i]));
}
int histSize = 256; int histSize = 256;
float range[] = { 0, 256 }; float range[] = { 0, 256 };
const float* histRange[] = { range }; const float* histRange[] = { range };
Mat hist; Mat hist;
// we compute the histogram // we compute the histogram
calcHist(&img, 1, 0, Mat(), hist, 1, &histSize, histRange, true, false); calcHist(&img, 1, 0, Mat(), hist, 1, &histSize, histRange, true, false);
cout << "****************Maximal region************************\n"; cout << "****************Maximal region************************\n";
for (int i = 0; i < hist.rows ; i++) for (int i = 0; i < hist.rows; i++)
{ {
if (hist.at<float>(i, 0)!=0) if (hist.at<float>(i, 0)!=0)
{ {
cout << "h" << i << "=\t" << hist.at<float>(i, 0) << "\n"; cout << "h" << setw(3) << left << i << "\t=\t" << hist.at<float>(i, 0) << "\n";
} }
} }
...@@ -403,68 +400,60 @@ static Mat MakeSyntheticImage() ...@@ -403,68 +400,60 @@ static Mat MakeSyntheticImage()
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
vector<String> fileName; Mat imgOrig, img;
Mat imgOrig,img; Size blurSize(5, 5);
Size blurSize(5,5);
cv::CommandLineParser parser(argc, argv, "{ help h | | }{ @input | | }"); cv::CommandLineParser parser(argc, argv, "{ help h | | }{ @input | | }");
if (parser.has("help")) if (parser.has("help"))
{ {
help(); help();
return 0; return 0;
} }
string input = parser.get<string>("@input"); string input = parser.get<string>("@input");
if (!input.empty()) if (!input.empty())
{ {
fileName.push_back(input); imgOrig = imread(input, IMREAD_GRAYSCALE);
imgOrig = imread(fileName[0], IMREAD_GRAYSCALE);
blur(imgOrig, img, blurSize); blur(imgOrig, img, blurSize);
} }
else else
{ {
fileName.push_back("SyntheticImage.bmp");
imgOrig = MakeSyntheticImage(); imgOrig = MakeSyntheticImage();
img=imgOrig; img = imgOrig;
} }
MSERParams pDefaultMSER;
// Descriptor array MSER // Descriptor array MSER
vector<String> typeDesc; vector<String> typeDesc;
// Param array for MSER // Param array for MSER
vector<MSERParams> pMSER; vector<MSERParams> pMSER;
vector<MSERParams>::iterator itMSER;
// Color palette // Color palette
vector<Vec3b> palette; vector<Vec3b> palette;
for (int i = 0; i<65536; i++) for (int i = 0; i<=numeric_limits<uint16_t>::max(); i++)
palette.push_back(Vec3b((uchar)rand(), (uchar)rand(), (uchar)rand())); palette.push_back(Vec3b((uchar)rand(), (uchar)rand(), (uchar)rand()));
help(); help();
MSERParams params;
params.delta = 10;
params.minArea = 100;
params.maxArea = 5000;
params.maxVariation = 2;
params.minDiversity = 0;
params.pass2Only = true;
typeDesc.push_back("MSER"); typeDesc.push_back("MSER");
pMSER.push_back(pDefaultMSER); pMSER.push_back(params);
pMSER.back().delta = 10;
pMSER.back().minArea = 100; params.pass2Only = false;
pMSER.back().maxArea = 5000;
pMSER.back().maxVariation = 2;
pMSER.back().minDiversity = 0;
pMSER.back().pass2Only = true;
typeDesc.push_back("MSER"); typeDesc.push_back("MSER");
pMSER.push_back(pDefaultMSER); pMSER.push_back(params);
pMSER.back().delta = 10;
pMSER.back().minArea = 100; params.delta = 100;
pMSER.back().maxArea = 5000;
pMSER.back().maxVariation = 2;
pMSER.back().minDiversity = 0;
pMSER.back().pass2Only = false;
typeDesc.push_back("MSER"); typeDesc.push_back("MSER");
pMSER.push_back(pDefaultMSER); pMSER.push_back(params);
pMSER.back().delta = 100;
pMSER.back().minArea = 100; vector<MSERParams>::iterator itMSER = pMSER.begin();
pMSER.back().maxArea = 5000;
pMSER.back().maxVariation = 2;
pMSER.back().minDiversity = 0;
pMSER.back().pass2Only = false;
itMSER = pMSER.begin();
vector<double> desMethCmp;
Ptr<Feature2D> b; Ptr<Feature2D> b;
String label; String label;
// Descriptor loop // Descriptor loop
...@@ -473,14 +462,14 @@ int main(int argc, char *argv[]) ...@@ -473,14 +462,14 @@ int main(int argc, char *argv[])
for (itDesc = typeDesc.begin(); itDesc != typeDesc.end(); ++itDesc) for (itDesc = typeDesc.begin(); itDesc != typeDesc.end(); ++itDesc)
{ {
vector<KeyPoint> keyImg1; vector<KeyPoint> keyImg1;
if (*itDesc == "MSER"){ if (*itDesc == "MSER")
{
if (img.type() == CV_8UC3) if (img.type() == CV_8UC3)
{ {
b = MSER::create(itMSER->delta, itMSER->minArea, itMSER->maxArea, itMSER->maxVariation, itMSER->minDiversity, itMSER->maxEvolution, b = MSER::create(itMSER->delta, itMSER->minArea, itMSER->maxArea, itMSER->maxVariation, itMSER->minDiversity, itMSER->maxEvolution,
itMSER->areaThreshold, itMSER->minMargin, itMSER->edgeBlurSize); itMSER->areaThreshold, itMSER->minMargin, itMSER->edgeBlurSize);
label = Legende(*itMSER); label = Legende(*itMSER);
++itMSER; ++itMSER;
} }
else else
{ {
...@@ -490,6 +479,7 @@ int main(int argc, char *argv[]) ...@@ -490,6 +479,7 @@ int main(int argc, char *argv[])
++itMSER; ++itMSER;
} }
} }
if (img.type()==CV_8UC3) if (img.type()==CV_8UC3)
{ {
img.copyTo(result); img.copyTo(result);
...@@ -505,36 +495,37 @@ int main(int argc, char *argv[]) ...@@ -505,36 +495,37 @@ int main(int argc, char *argv[])
try try
{ {
// We can detect regions using detectRegions method // We can detect regions using detectRegions method
vector<KeyPoint> keyImg; vector<KeyPoint> keyImg;
vector<Rect> zone; vector<Rect> zone;
vector<vector <Point> > region; vector<vector <Point> > region;
Mat desc; Mat desc;
if (b.dynamicCast<MSER>() != NULL) if (b.dynamicCast<MSER>() != NULL)
{ {
Ptr<MSER> sbd = b.dynamicCast<MSER>(); Ptr<MSER> sbd = b.dynamicCast<MSER>();
sbd->detectRegions(img, region, zone); sbd->detectRegions(img, region, zone);
int i = 0;
//result = Scalar(0, 0, 0); //result = Scalar(0, 0, 0);
int nbPixelInMSER=0; int nbPixelInMSER=0;
for (vector<vector <Point> >::iterator itr = region.begin(); itr != region.end(); ++itr, ++i) for (vector<vector <Point> >::iterator itr = region.begin(); itr != region.end(); ++itr)
{ {
for (vector <Point>::iterator itp = region[i].begin(); itp != region[i].end(); ++itp) for (vector <Point>::iterator itp = itr->begin(); itp != itr->end(); ++itp)
{ {
// all pixels belonging to region become blue // all pixels belonging to region become blue
result.at<Vec3b>(itp->y, itp->x) = Vec3b(128, 0, 0); result.at<Vec3b>(itp->y, itp->x) = Vec3b(128, 0, 0);
nbPixelInMSER++; nbPixelInMSER++;
} }
} }
cout << "Number of MSER region " << region.size()<<" Number of pixels in all MSER region : "<<nbPixelInMSER<<"\n"; cout << "Number of MSER region: " << region.size() << "; Number of pixels in all MSER region: " << nbPixelInMSER << "\n";
} }
namedWindow(*itDesc + label, WINDOW_AUTOSIZE);
imshow(*itDesc + label, result); const string winName = *itDesc + label;
namedWindow(winName, WINDOW_AUTOSIZE);
imshow(winName, result);
imshow("Original", img); imshow("Original", img);
} }
catch (Exception& e) catch (Exception& e)
{ {
cout << "Feature : " << *itDesc << "\n"; cout << "Feature: " << *itDesc << "\n";
cout << e.msg << endl; cout << e.msg << endl;
} }
#ifdef HAVE_OPENGL #ifdef HAVE_OPENGL
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment