VC中bmp图片和Halcon中图片类型相互转换 | 您所在的位置:网站首页 › 图片格式转成bmp › VC中bmp图片和Halcon中图片类型相互转换 |
//将Halcon HObject类型的图片转换成bmp格式图片并且显示在picture控件上
HTuple rImage , gImage , bImage , type , hvWidth , hvHeight;
BYTE* vcPr = NULL;
BYTE* vcPg = NULL;
BYTE* vcPb = NULL;
BYTE* vcPImage = NULL;
INT32 vcWidth = 0 , vcHeight = 0;
BITMAPINFO m_pBmpinfo;
GrabImageAsync(&ho_Image, hv_AcqHandle, -1);//halcon采集图片到HObject ho_Image变量中
//获取halcon中图片RGB三通道每个通道数据的指针,以及图片的宽度,高度,位深信息
GetImagePointer3(ho_Image , &rImage , &gImage , &bImage , &type , &hvWidth , &hvHeight);
vcWidth = (Hlong)hvWidth;
vcHeight = (Hlong)hvHeight;
vcPr = (BYTE*)rImage[0].L();
vcPg = (BYTE*)gImage[0].L();
vcPb = (BYTE*)bImage[0].L();
//计算bmp图片实际的宽度,因为bmp图片宽度必须四字节对齐
int bmpWidth = (vcWidth*3 + 3)/4*4;
vcPImage = new BYTE[bmpWidth * vcHeight * 3];//給bmp图片分配内存空间
//将halcon图象类型HObject中的数据拷贝出来,放到C++变量类型中
for(int i = vcHeight - 1 ; i > 0 ; i--){
for(int j = 0 ; j < vcWidth ; j++){
*(vcPImage + i*bmpWidth + j*3 + 0) = *vcPb;
*(vcPImage + i*bmpWidth + j*3 + 1) = *vcPg;
*(vcPImage + i*bmpWidth + j*3 + 2) = *vcPr;
vcPb++;
vcPg++;
vcPr++;
}
}
//填充bmp图片信息头
BITMAPINFOHEADER *bmpinfoheader = &(m_pBmpinfo.bmiHeader);
bmpinfoheader->biSize = sizeof(BITMAPINFOHEADER);
bmpinfoheader->biWidth = vcWidth;
bmpinfoheader->biHeight = vcHeight;
bmpinfoheader->biBitCount = 24;
bmpinfoheader->biCompression = BI_RGB;
bmpinfoheader->biSizeImage = vcWidth*vcHeight*3;
bmpinfoheader->biClrImportant = 0;
bmpinfoheader->biClrUsed = 0;
bmpinfoheader->biXPelsPerMeter = 0;
bmpinfoheader->biYPelsPerMeter = 0;
bmpinfoheader->biPlanes = 1;
//获取picture控件的坐标
CRect rect;
this->m_pDc = this->GetDlgItem(IDC_STATIC_VIEW)->GetDC();//得到对话框中画布的指针
this->GetDlgItem(IDC_STATIC_VIEW)->GetClientRect(&rect);
SetStretchBltMode(this->m_pDc->GetSafeHdc(),COLORONCOLOR);//调整一下显示模式:DC句柄,彩色模式
//将图片缩放到画布大小进行显示
StretchDIBits(
this->m_pDc->GetSafeHdc(),//DC控件picture的窗口句柄
rect.left , //picture控件的左上角横坐标
rect.top , //picture控件的左上角横坐标
rect.Width() , //picture控件宽度
rect.Height() , //picture控件高度
0 , //在picture控件中,从图片的(0,0)的位置开始显示
0 ,
vcWidth ,//显示的图片宽度
vcHeight , //显示图片的高度
vcPImage , //图片数据空间
this->m_pBmpinfo , //图片数据头
DIB_RGB_COLORS , //颜色空间
SRCCOPY);
delete[] vcPImage;
============================================================================================================ //将Halcon HObject类型图片转换成C++灰度图 。需要注意的是RGB彩色图象由 文件头+信息头+像素数据 组成 //而灰度图是由 文件头+信息头+颜色表+像素数据 组成 BITMAPINFO* m_pBmpInf = new BITMAPINFO; m_pBmpInf->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); //图像宽度,一般为输出窗口宽度 m_pBmpInf->bmiHeader.biWidth = width; //图像宽度,一般为输出窗口高度 m_pBmpInf->bmiHeader.biHeight = height; m_pBmpInf->bmiHeader.biPlanes = 1; m_pBmpInf->bmiHeader.biBitCount = 8;//这个参数决定了BITMAPINFO中bmiColors元素的个数,1->2 , 4->16 , 80->256 m_pBmpInf->bmiHeader.biCompression = BI_RGB; m_pBmpInf->bmiHeader.biSizeImage = 0; m_pBmpInf->bmiHeader.biXPelsPerMeter = 0; m_pBmpInf->bmiHeader.biYPelsPerMeter = 0; m_pBmpInf->bmiHeader.biClrUsed = 0; m_pBmpInf->bmiHeader.biClrImportant = 0; //給调色板赋值 for(int i=0;i *(m_pImageDataB + j * bytewidthg + i ) =* (m_pImageData + j * bytewidth + i * 3 + 0 ) ; *(m_pImageDataG + j * bytewidthg + i) =* (m_pImageData + j * bytewidth + i * 3 + 1 ); *(m_pImageDataR + j * bytewidthg + i) =* (m_pImageData + j * bytewidth + i * 3 + 2 ) ; } } //调用halcon中的GenImage3Extern生成HObject存放到变量Image中 GenImage3Extern(&Image, "byte", (HTuple)pFrameHead->iWidth, (HTuple)pFrameHead->iHeight, (long)m_pImageDataR,(long)m_pImageDataG,(long)m_pImageDataB, NULL);
delete[] m_pImageData ; delete[] m_pImageDataR ; delete[] m_pImageDataG ; delete[] m_pImageDataB ;
============================================================================================================
//将VC中的RGB彩色图转换成Halcon中的灰度图 BITMAPINFO*bmpinfo;//定义信息头变量 BYTE* m_pImageData;//定义图像数据内存的指针 BYTE*m_pImageDataGray;//灰度图向内存指针 HObject Image; int bytewidth = (pFrameHead->iWidth * 3 + 3 ) / 4 * 4 ;//RGB彩色三通道图象4字节对齐后的图片宽度 int bytewidthg = (pFrameHead->iWidth + 3 ) / 4 * 4 ;//单通道图象4字节对齐后的图片宽度 m_pImageData = new BYTE[bytewidth ];//用于放三通道RGB图片 m_pImageDataGray = new BYTE[bytewidthg];//用于存放灰度图片像素数据 memcpy(m_pImageData,pThis->m_pFrameBuffer,pFrameHead->iWidth*pFrameHead->iHeight*3); for( int j = pFrameHead->iHeight-1; j>=0; j--) { //(注意tuple中图像数据的存放和VC中的差别) for(int i = 0; i < pFrameHead->iWidth; i++) { *(m_pImageDatagray + j * bytewidthg + i ) =0.11*m_pImageData [j * bytewidth + i * 3 + 0 ]+ 0.59*m_pImageData[j * bytewidth + i * 3 + 1]+ 0.30* m_pImageData[j * bytewidth + i * 3 + 2 ]; } } GenImage1Extern(&Image, "byte", (HTuple)pFrameHead->iWidth, (HTuple)pFrameHead->iHeight, (long)m_pImageDatagray, NULL);
delete[] m_pImageData ; delete[] m_pImageDataGray; |
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