Attachment 289168 Details for Bug 57784 – The method asList(T[]) in the type Arrays is not applicable for the arguments (Mat)

[patch] The method asList(T[]) in the type Arrays is not applicable for the arguments (Mat)

Ch12_1_1GetMotionByAbsdiff.java (text/plain), 3.92 KB, created by wu kauzun

on 2023-09-03 23:02:34 EDT

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Filename:

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Creator: wu kauzun

Created: 2023-09-03 23:02:34 EDT

Size: 3.92 KB

patch

obsolete

>package ch12;
>import java.util.ArrayList;  
>import java.util.List;  
>import javax.swing.JFrame;  
>import org.opencv.core.Core;  
>import org.opencv.core.Mat;   
>import org.opencv.core.MatOfPoint;
>import org.opencv.core.Point;  
>import org.opencv.core.Rect;
>import org.opencv.core.Scalar;  
>import org.opencv.core.Size;  
>import org.opencv.highgui.VideoCapture;  
>import org.opencv.imgproc.Imgproc;  
>import org.opencv.core.CvType;  
>
>public class Ch12_1_1GetMotionByAbsdiff {  
>	static{ System.loadLibrary(Core.NATIVE_LIBRARY_NAME); }
>	   public static void main(String arg[]){  
>	     JFrame frame1 = new JFrame("Camera");  
>	     frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
>	     frame1.setSize(640,480);  
>	     frame1.setBounds(0, 0, frame1.getWidth(), frame1.getHeight());  
>	     Panel panel1 = new Panel();  
>	     frame1.setContentPane(panel1);  
>	     frame1.setVisible(true);  
> 
>	     JFrame frame2 = new JFrame("Threshold");  
>	     frame2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
>	     frame2.setSize(640,480);  
>	     frame2.setBounds(300,100, frame1.getWidth()+50, 50+frame1.getHeight());  
>	     Panel panel2 = new Panel();  
>	     frame2.setContentPane(panel2);      
>	     frame2.setVisible(true);  
>	     //-- 2. Read the video stream  
>	     VideoCapture capture =new VideoCapture(0);  
>	     Mat webcam_image=new Mat();  
>	      capture.read(webcam_image);  
>	      frame1.setSize(webcam_image.width()+40,webcam_image.height()+60);  
>	      frame2.setSize(webcam_image.width()+40,webcam_image.height()+60);  
>
>	      Mat image = null;
>	      Mat prevImage = null;
>	      Mat diff = null;
>	      Mat mHierarchy = new Mat();
>	      
>	     if( capture.isOpened())  
>	     {  
>	      while( true )  
>	      {  
>	        capture.read(webcam_image);  
>	        if( !webcam_image.empty() )  
>	         {  
>	           Imgproc.GaussianBlur(webcam_image, webcam_image, new Size(9,9), 0, 0);
>	           
>	           if(image==null){
>	        	   image = new Mat(webcam_image.size(),CvType.CV_8U);
>	        	   Imgproc.cvtColor(webcam_image, image, Imgproc.COLOR_RGB2GRAY);
>	           }else{
>	        	   prevImage = new Mat(webcam_image.size(),CvType.CV_8U);
>	               
>		           prevImage = image;
>	               
>		           image = new Mat(webcam_image.size(),CvType.CV_8U);
>		           Imgproc.cvtColor(webcam_image, image, Imgproc.COLOR_RGB2GRAY);
>		           
>	           }
>	           
>	          if(diff==null){
>	        	  diff = new Mat(webcam_image.size(),CvType.CV_8U);
>	          }
>	          
>	           if (prevImage != null) {
>	        	   
>	        	   Core.absdiff(image, prevImage, diff);
>	                
>	        	   //64:åµæ¸¬å°æ¡æ¡è¼å¤,ä½éæ,127:åµæ¸¬å°æ¡æ¡è¼å°,ä½ä¸éæ
>	        	   Imgproc.threshold(diff, diff, 64, 255, Imgproc.THRESH_BINARY);
>	        	   List<MatOfPoint> contours = new ArrayList<MatOfPoint>();
>
>	                Imgproc.findContours(diff, contours, mHierarchy, Imgproc.RETR_LIST, Imgproc.CHAIN_APPROX_SIMPLE);
>	                /**ææè¨±å¤å°æ¡æ¡   
>	                 * **/
>	                for(int i=0;i<contours.size();i++)
>	            	{
>	            	Rect r = Imgproc.boundingRect(contours.get(i));
>	            	int ContourArea = r.height* r.width;
>	            	if(ContourArea > 500)
>	            	{
>	            	Imgproc.drawContours(webcam_image, contours,i,new Scalar(255,0,0,255),-1);
>	            	//è£æå°ä½¿ç¨èè²è¡¨ç¤º
>	            	Core.rectangle(webcam_image, new Point(r.x, r.y), new Point(r.x + r.width, r.y + r.height), new Scalar(0, 255, 0));
>	            	}
>
>	            	}
>	               
>	           }          
>	          panel1.setimagewithMat(webcam_image);  
>	          panel2.setimagewithMat(diff);  //
>	          frame1.repaint();  
>	          frame2.repaint();  
>	         }  
>	         else  
>	         {  
>	           System.out.println(" ç¡è£æä»»ä½ç«é¢!");  
>	           break;  
>	         }  
>	        }  
>	       }  
>	     return;  
>	   } 
>	 }

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Attachments on bug 57784: 289168