基本上我有一个摄像头芯片(摄像头模块:C3038,使用 OmniVision 的 CMOS 图像传感器 OV6630)通过 RS232 链路连接到 PC。我想在这种格式的 Java 程序中读取图像数据(根据相机规范):
数据格式 - YCrCb 4:2:2、GRB 4:2:2、RGB 原始数据
关于如何做的任何提示?
我的实现:
import gnu.io.CommPortIdentifier;
import gnu.io.PortInUseException;
import gnu.io.SerialPort;
import gnu.io.SerialPortEvent;
import gnu.io.SerialPortEventListener;
import gnu.io.UnsupportedCommOperationException;
import java.awt.*;
import java.awt.image.*;
import java.io.*;
import java.util.*;
import javax.swing.*;
import javax.imageio.*;
public class SimpleRead1 implements Runnable, SerialPortEventListener {
static CommPortIdentifier portId;
static Enumeration portList;
InputStream inputStream;
SerialPort serialPort;
Thread readThread;
byte [] readBuffer;
static byte [] storeBuffer;
public SimpleRead1() {
try {
serialPort = (SerialPort) portId.open("SimpleReadApp", 2000);
}catch (PortInUseException e) {System.out.println(e);}
try {
inputStream = serialPort.getInputStream();
}catch (IOException e) {System.out.println(e);}
try {
serialPort.addEventListener(this);
} catch (TooManyListenersException e) {System.out.println(e);}
serialPort.notifyOnDataAvailable(true);
try {
serialPort.setSerialPortParams(9600,
SerialPort.DATABITS_8,
SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE);
} catch (UnsupportedCommOperationException e) {System.out.println(e);}
readThread = new Thread(this);
readThread.start();
}
public void run() {
try {
Thread.sleep(20000);
} catch (InterruptedException e) {System.out.println(e);}
}
@Override
public void serialEvent(SerialPortEvent event){
switch(event.getEventType()) {
case SerialPortEvent.BI:
case SerialPortEvent.OE:
case SerialPortEvent.FE:
case SerialPortEvent.PE:
case SerialPortEvent.CD:
case SerialPortEvent.CTS:
case SerialPortEvent.DSR:
case SerialPortEvent.RI:
case SerialPortEvent.OUTPUT_BUFFER_EMPTY:
break;
case SerialPortEvent.DATA_AVAILABLE:
readBuffer = new byte[Integer.MAX_VALUE];
try {
while (inputStream.available() > 0) {
int numBytes = inputStream.read(readBuffer);
System.out.print(new String(readBuffer));
}
} catch (IOException e) {e.printStackTrace();}
InputStream in = new ByteArrayInputStream(readBuffer);
BufferedImage image = null;
try {
image = ImageIO.read(in);
} catch (IOException e) {e.printStackTrace();}
//GUI for displaying image
ImageIcon imageIcon = new ImageIcon(image);
JLabel label = new JLabel();
label.setIcon(imageIcon);
JFrame frame = new JFrame("image display");
frame.getContentPane().add(label,BorderLayout.CENTER);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
break;
}
}
public static void main(String[] args) throws Exception {
portList = CommPortIdentifier.getPortIdentifiers();
while (portList.hasMoreElements()) {
portId = (CommPortIdentifier) portList.nextElement();
if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
if (portId.getName().equals("COM7")) {
// if (portId.getName().equals("/dev/term/a")) {
SimpleRead1 reader = new SimpleRead1();
}
}
}
}
}