用vc6写的一个简易串口工具，可以通过串口输入的数据(如： 一个像素点(0x12,0xf0)(0x13,0x13) )生成保存图片到程序目录下格式：320*240 ，160*120,80*60都可以
数据多了电脑容易卡死，可能是vc串口模块占用CPU导致。
串口传图工具
//********************遍历逐个像素改变图像******************
// 串口传图Dlg.cpp : implementation file
//
#include "stdafx.h"
#include "串口传图.h"
#include "串口传图Dlg.h"
#include "cxcore.h"
#include "highgui.h"
#include "cv.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CMyDlg dialog
CMyDlg::CMyDlg(CWnd* pParent /*=NULL*/)
: CDialog(CMyDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CMyDlg)
m_setport = _T("115200,n,8,1");
m_selectport = 8;
m_recmsg = _T("");
m_width = 160;
m_height = 120;
//}}AFX_DATA_INIT
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CMyDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CMyDlg)
DDX_Control(pDX, IDC_CHARHEX, m_charhex);
DDX_Text(pDX, IDC_SETPORT, m_setport);
DDX_Text(pDX, IDC_SELECTPORT, m_selectport);
DDX_Text(pDX, IDC_RECMSG, m_recmsg);
DDX_Control(pDX, IDC_MSCOMM, m_com);
DDX_Text(pDX, IDC_HEIGHT, m_height);
DDX_Text(pDX, IDC_WIDTH, m_width);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CMyDlg, CDialog)
//{{AFX_MSG_MAP(CMyDlg)
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_OPEN, OnOpen)
ON_BN_CLICKED(IDC_SENDIMG, OnSendimg)
ON_BN_CLICKED(IDC_SAVEIMG, OnSaveimg)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMyDlg message handlers
BOOL CMyDlg::OnInitDialog()
{
CDialog::OnInitDialog();
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// TODO: Add extra initialization here
return TRUE; // return TRUE unless you set the focus to a control
}
BEGIN_EVENTSINK_MAP(CMyDlg, CDialog)
//{{AFX_EVENTSINK_MAP(CMyDlg)
ON_EVENT(CMyDlg, IDC_MSCOMM, 1 /* OnComm */, OnComm, VTS_NONE)
//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void CMyDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
HCURSOR CMyDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
//****************将字符转换为整型*******************
char ConvertHexChar(char ch)
{
if((ch>='0')&&(ch<='9'))return ch-0x30;
else if((ch>='A')&&(ch<='F'))return ch-'A'+10;
else if((ch>='a')&&(ch<='f'))return ch-'a'+10;
else return (-1);
}
int String2Hex(CString str, CByteArray &msg)
{
int hhex,lhex;
int hexlen=0;
int len=str.GetLength();
msg.SetSize(len/2); //两个字符组合成一个16进制，所以字串长度减半
for(int i=0;i=len)
break;
lstr=str[i]; //将第2个字符存入低位
hhex = ConvertHexChar(hstr); //字符转换为16进制
lhex = ConvertHexChar(lstr);
if((hhex==16)||(lhex==16))
break;
else
hhex=hhex*16+lhex;
i++;
msg[hexlen]=(char)hhex;
hexlen++;
}
msg.SetSize(hexlen);
return hexlen;
}
//***************设置通信端口*************************************
void CMyDlg::OnOpen()
{
// TODO: Add your control notification handler code here
if(m_com.GetPortOpen())
{
m_com.SetPortOpen(FALSE);
SetDlgItemText (IDC_OPEN , "打开"); //更新按扭内容
KillTimer(1);
}
else
{
UpdateData(TRUE); //更新所有编辑框的数据，存入变量
m_com.SetCommPort(m_selectport); //打开输入的端口
if(!m_com.GetPortOpen())m_com.SetPortOpen(TRUE);
else AfxMessageBox("Cannot open serial port!");
m_com.SetSettings(m_setport); //定义串口参数只接受字符串
SetDlgItemText (IDC_OPEN , "关闭"); //按扭显示关闭
// DCB setport; //定义串口参数方法1
m_com.SetInputMode(1); //二进制方式检取数据
m_com.SetRThreshold(1); //串口缓冲>=1个数据时引发oncomm事件
m_com.SetInputLen(0); //当前接收区数据设置为0
m_com.GetInput(); //预诗缓冲区清除残留数据
}
}
//***************接收信息*************************************
CString savimg;
int next=0;
void CMyDlg::OnComm()
{
// TODO: Add your control notification handler code here
VARIANT variant_inp;
COleSafeArray safearray_inp;
LONG len,k;
BYTE rxdata[202400]; //设置BYTE数组 An 8-bit integerthat is not signed.
CString strtemp;
if(m_com.GetCommEvent()==2) //事件值为2表示接收缓冲区内有字符
{ ////////以下你可以根据自己的通信协议加入处理代码
variant_inp=m_com.GetInput(); //读缓冲区
safearray_inp=variant_inp; //VARIANT型变量转换为ColeSafeArray型变量
len=safearray_inp.GetOneDimSize(); //得到有效数据长度
for(k=0;kheight
{
unsigned char *bslImgData = (unsigned char *)(src->imageData+y*src->widthStep); //图像src第y行
for(int x=0;xwidth
imgstr+=bslImgData[3*x+0]/2;
}
m_com.SetOutput(COleVariant(imgstr)); //将字符串发送出去,因是char型，单字节的值不大于127(0x7f);
imgstr.Empty(); //清空数据
cvDestroyWindow("disp");
}
}
//********************保存图像******************
void CMyDlg::OnSaveimg()
{
// TODO: Add your control notification handler code here
UpdateData(TRUE); //更新所有编辑框的数据，存入变量
IplImage *img = cvCreateImage(cvSize(m_width,m_height),8,3); //默认为三通道图像宽100，高108
next=0;
CByteArray hexdata;
int len = String2Hex(m_recmsg, hexdata);
m_recmsg.Empty(); //清空接收缓存
SetDlgItemText(IDC_RECMSG,m_recmsg); //清空接收框
BYTE temp=0,temp2=0;
for(int v=0;vheight;v++)
{
unsigned char *imgdat = (unsigned char *)(img->imageData+v*img->widthStep); //图像img第y行
for(int w=0;wwidth;w++) //图像第x列
{//接收RGB565数据，数据格式为2byte数据，分别是5位b,6位g,5位r,共同组成
imgdat[w*3+0] = savimg[next]&0xf8; //取rgb565的r红色
imgdat[w*3+1] =(savimg[next]&0x07)<<5;
next++;
imgdat[w*3+1] |=(savimg[next]&0xe0)>>3; //取rgb565中间b绿色
imgdat[w*3+2] = (savimg[next]&0x1f)<<3; //取rgb565的b蓝色
//imgdat[w*3+0] = imgdat[w*3+2] = imgdat[w*3+1]; 取蓝色作为灰图显示
next++;
if(len==next)break;
}
}
savimg.Empty(); //清空数据
//*********************获取系统时间保存图片****************
CTime time;
char szTime[100];
time = CTime::GetCurrentTime();
sprintf(szTime,"%4d%.2d%.2d%.2d%.2d%.2d%s",time.GetYear(),time.GetMonth(), time.GetDay(), time.GetHour(), time.GetMinute(), time.GetSecond(),".jpg");
cvSaveImage(szTime,img); //保存串口收到的图像
AfxMessageBox("保存成功!");
cvNamedWindow("disp");
cvShowImage("disp",img);
cvWaitKey(0);
cvDestroyWindow("disp");
}
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