我正在开发关于
javacv的项目,我需要知道如何识别下面的图像并用特定的颜色填充图像？
我尝试通过这个question,这是我使用的图像
import com.googlecode.javacpp.Loader;
import com.googlecode.javacv.CanvasFrame;
import static com.googlecode.javacpp.Loader.*;
import static com.googlecode.javacv.cpp.opencv_core.*;
import static com.googlecode.javacv.cpp.opencv_highgui.*;
import static com.googlecode.javacv.cpp.opencv_imgproc.*;
import java.io.File;
import javax.swing.JFileChooser;
public class PolyGonIdentification {
public static void main(String[] args) {
CanvasFrame cnvs=new CanvasFrame("Polygon");
cnvs.setDefaultCloSEOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
CvMemStorage storage=CvMemStorage.create();
CvSeq squares = new CvContour();
squares = cvCreateSeq(0,sizeof(CvContour.class),sizeof(CvSeq.class),storage);
JFileChooser f=new JFileChooser();
int result=f.showOpenDialog(f);//show dialog Box to choose files
File myfile=null;
String path="";
if(result==0){
myfile=f.getSelectedFile();//selected file taken to myfile
path=myfile.getAbsolutePath();//get the path of the file
}
IplImage src = cvLoadImage(path);//hear path is actual path to image
IplImage gry=cvCreateImage(cvGetSize(src),IPL_DEPTH_8U,1);
cvCvtColor(src,gry,CV_BGR2GRAY);
cvThreshold(gry,230,255,CV_THRESH_BINARY_INV);
cvFindContours(gry,storage,squares,Loader.sizeof(CvContour.class),CV_RETR_LIST,CV_CHAIN_APPROX_SIMPLE);
System.out.println(squares.total());
for (int i=0; i<squares.total(); i++)
{
cvDrawContours(gry,CvScalar.ONE,127,1,8);
}
IplConvKernel mat=cvCreateStructuringElementEx(7,7,3,CV_SHAPE_RECT,null);
cvDilate(gry,mat,CV_C);
cvErode(gry,CV_C);
cnvs.showImage(gry);
}
}
我的最终结果应该像这张图片
解决方法
您可以使用此代码对其进行归档
import com.googlecode.javacpp.Loader;
import com.googlecode.javacv.CanvasFrame;
import static com.googlecode.javacpp.Loader.*;
import static com.googlecode.javacv.cpp.opencv_core.*;
import static com.googlecode.javacv.cpp.opencv_highgui.*;
import static com.googlecode.javacv.cpp.opencv_imgproc.*;
import java.io.File;
import javax.swing.JFileChooser;
public class Ishape {
public static void main(String[] args) {
CanvasFrame cnvs=new CanvasFrame("Polygon");
cnvs.setDefaultCloSEOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
CvMemStorage storage=CvMemStorage.create();
CvSeq squares = new CvContour();
squares = cvCreateSeq(0,storage);
JFileChooser f=new JFileChooser();
int result=f.showOpenDialog(f);//show dialog Box to choose files
File myfile=null;
String path="";
if(result==0){
myfile=f.getSelectedFile();//selected file taken to myfile
path=myfile.getAbsolutePath();//get the path of the file
}
IplImage src = cvLoadImage(path);//hear path is actual path to image
IplImage gry=cvCreateImage(cvGetSize(src),1);
cvCvtColor(src,CV_BGR2GRAY);
cvThreshold(gry,CV_THRESH_BINARY_INV);
cvFindContours(gry,CV_RETR_EXTERNAL,CV_CHAIN_APPROX_SIMPLE);
CvSeq ss=null;
for (int i=0; i<1; i++)
{
cvDrawContours(gry,CvScalar.WHITE,CV_RGB(248,18,18),-1,8);
ss=cvApproxPoly(squares,CV_POLY_APPROX_DP,8,0);
}
IplConvKernel mat=cvCreateStructuringElementEx(7,null);
cvDilate(gry,CV_C);
cvErode(gry,CV_C);
cnvs.showImage(gry);
}
}
结果
这将是结果,我相信这可以帮助您解决您的问题.
