uint ImageInstance::getPixelValue(long x, long y, EP_Representation &r) const
{
DicomImage *image;
if (rawType) image = rawImage;
else image = dcmImage;
if (image) {
const DiPixel* pixel = image->getInterData();
if (pixel && (x < (long)image->getWidth()) && (x >= 0)
&& (y < (long)image->getHeight()) && (y >= 0)) {
r = pixel->getRepresentation();
switch (r) {
case EPR_Sint8:
case EPR_Uint8:
return *((char*)(pixel->getData()) + (y * image->getWidth() + x));
case EPR_Sint16:
case EPR_Uint16:
return *((short*)(pixel->getData()) + (y * image->getWidth() + x));
case EPR_Sint32:
case EPR_Uint32:
return *((int*)(pixel->getData()) + (y * image->getWidth() + x));
}
}
}
r = (EP_Representation)-1;
return 0;
}
void CDicomViewerView::DrawDicomImage(CDC* pDC)
{
CRect clientRect;
this->GetClientRect(&clientRect);
int nWidth=clientRect.Width(),nHeight=clientRect.Height();
CDC MemDC; //首先定义一个显示设备对象
CBitmap MemBitmap;//定义一个位图对象
//随后建立与屏幕显示兼容的内存显示设备
MemDC.CreateCompatibleDC(NULL);
//这时还不能绘图，因为没有地方画 ^_^
//下面建立一个与屏幕显示兼容的位图，至于位图的大小嘛，可以用窗口的大小
MemBitmap.CreateCompatibleBitmap(pDC,nWidth,nHeight);
//将位图选入到内存显示设备中
//只有选入了位图的内存显示设备才有地方绘图，画到指定的位图上
CBitmap *pOldBit=MemDC.SelectObject(&MemBitmap);
//先用背景色将位图清除干净，这里我用的是白色作为背景
//你也可以用自己应该用的颜色
MemDC.FillSolidRect(0,0,nWidth,nHeight,RGB(0,0,0));
CDicomViewerDoc* pDoc = GetDocument();
if(pDoc->m_pDicomImage != 0){
E_DecompressionColorSpaceConversion opt_decompCSconversion = EDC_photometricInterpretation;
E_UIDCreation opt_uidcreation = EUC_default;
E_PlanarConfiguration opt_planarconfig = EPC_default;
OFBool opt_verbose = OFFalse;
DJDecoderRegistration::registerCodecs(
opt_decompCSconversion,
opt_uidcreation,
opt_planarconfig,
opt_verbose);
//根据传输语法构造 DicomImage 从 fstart 帧开始一共 fcount 帧
DicomImage *pDicomImg = pDoc->m_pDicomImage;//new DicomImage(pDoc->m_pFilePathName);
//DicomImage *pNewDicomImg = pDicomImg->createScaledImage((const unsigned long)1024,1024);
LPBITMAPINFOHEADER m_lpBMIH = (LPBITMAPINFOHEADER) new char [sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256];
m_lpBMIH->biSize = sizeof(BITMAPINFOHEADER);
m_lpBMIH->biWidth = pDicomImg->getWidth();
m_lpBMIH->biHeight = pDicomImg->getHeight();
m_lpBMIH->biPlanes = 1;
m_lpBMIH->biBitCount = 24;
m_lpBMIH->biCompression = BI_RGB;
m_lpBMIH->biSizeImage = 0;
m_lpBMIH->biXPelsPerMeter = 0;
m_lpBMIH->biYPelsPerMeter = 0;
pDicomImg->setWindow(pDoc->m_dCurrentWindowCenter, pDoc->m_dCurrentWindowWidth);
//得到 DICOM文件第 frame 的 DIB数据(假设是 24 位的)
unsigned long bufSize = 0;
void* m_pDicomDibits;
bufSize =pDicomImg->createWindowsDIB(m_pDicomDibits, bufSize, 0, 24, 1, 1);
double originalX = (clientRect.Width() - m_lpBMIH->biWidth)/2;
double originalY = (clientRect.Height() - m_lpBMIH->biHeight)/2;
StretchDIBits (MemDC.GetSafeHdc(),originalX,originalY, m_lpBMIH->biWidth, m_lpBMIH ->biHeight,0,0,m_lpBMIH->biWidth,m_lpBMIH->biHeight,
m_pDicomDibits, (LPBITMAPINFO) m_lpBMIH,DIB_RGB_COLORS,SRCCOPY);
delete m_pDicomDibits;
}
//将内存中的图拷贝到屏幕上进行显示
pDC->BitBlt(0,0,nWidth,nHeight,&MemDC,0,0,SRCCOPY);
MemBitmap.DeleteObject();
MemDC.DeleteDC();
}
bool ImageInstance::dcm2bmpHelper(DicomImage &dcmImage, QPixmap &pixmap)
{
BITMAPFILEHEADER lpfh;
BITMAPINFOHEADER lpih;
RGBQUAD palette[256];
memset(&lpfh, 0, sizeof(BITMAPFILEHEADER));
lpfh.bfType = 0x4d42; //'B''M'
lpfh.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + sizeof(palette);
memset(&lpih, 0, sizeof(BITMAPINFOHEADER));
lpih.biSize = sizeof(BITMAPINFOHEADER);
lpih.biWidth = dcmImage.getWidth();
lpih.biHeight = dcmImage.getHeight();
lpih.biCompression = BI_RGB;
lpih.biBitCount = 8;
lpih.biPlanes = 1;
memset(palette, 0, sizeof(palette));
for (int i = 0; i < 256; ++i) {
palette[i].rgbBlue = i;
palette[i].rgbGreen = i;
palette[i].rgbRed = i;
}
void *pDIB = NULL;
int size = dcmImage.createWindowsDIB(pDIB, 0, 0, 8, 1, 1);
//lpih.biSizeImage = size;
lpfh.bfSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + sizeof(palette) + size;
QByteArray bmp;
bmp.append((char*)&lpfh, sizeof(BITMAPFILEHEADER));
bmp.append((char*)&lpih, sizeof(BITMAPINFOHEADER));
bmp.append((char*)palette, sizeof(palette));
bmp.append((char*)pDIB, size);
delete pDIB;
return pixmap.loadFromData(bmp);
}
void QtDcmManager::makePreview ( const QString &filename )
{
DcmRLEDecoderRegistration::registerCodecs ( OFFalse, OFFalse );
DJDecoderRegistration::registerCodecs ( EDC_photometricInterpretation, EUC_default, EPC_default, OFFalse );
DcmFileFormat file;
file.loadFile ( filename.toLatin1().data() );
DcmDataset * dset = file.getDataset();
DicomImage* dcimage = new DicomImage ( dset, file.getDataset()->getOriginalXfer(), CIF_MayDetachPixelData );
if ( dcimage != NULL ) {
dcimage->setNoDisplayFunction();
dcimage->hideAllOverlays();
dcimage->setNoVoiTransformation();
if ( dcimage->getStatus() == EIS_Normal ) {
Uint32 *pixelData = ( Uint32 * ) ( dcimage->getOutputData ( 32 /* bits per sample */ ) );
if ( pixelData != NULL ) {
Uint8 *colored = new Uint8[dcimage->getWidth() * dcimage->getHeight() * 4]; //4 * dcimage->getWidth() * dcimage->getHeight() matrix
Uint8 *col = colored;
Uint32 *p = pixelData;
//get the highest values for RGBA, then use them to scale the pixel luminosity
Uint32 p_max = 0;
#ifdef WIN32
Uint32 p_min = UINT_LEAST32_MAX;
#else
Uint32 p_min = std::numeric_limits<Uint32>::max();
#endif
for ( unsigned i = 0; i < dcimage->getWidth(); ++i ) {
for ( unsigned j = 0; j < dcimage->getHeight(); ++j, ++p ) {
if ( *p > p_max ) {
p_max = *p;
}
if ( *p < p_min ) {
p_min = *p;
}
}
}
double a = 4294967295.f / ( ( double ) p_max - ( double ) p_min );
//re-initialize 'col'
p = pixelData;
//copy the pixels in our QImage
for ( unsigned i = 0; i < dcimage->getWidth(); ++i ) {
for ( unsigned j = 0; j < dcimage->getHeight(); ++j, ++p ) {
*col = ( Uint8 ) ( ( 255.f / 4294967295.f ) * ( a * ( ( double ) ( *p ) - ( double ) p_min ) ) );
++col;
*col = ( Uint8 ) ( ( 255.f / 4294967295.f ) * ( a * ( ( double ) ( *p ) - ( double ) p_min ) ) );
++col;
*col = ( Uint8 ) ( ( 255.f / 4294967295.f ) * ( a * ( ( double ) ( *p ) - ( double ) p_min ) ) );
++col;
*col = 255;
++col;
}
}
QImage image ( colored, dcimage->getWidth(), dcimage->getHeight(), QImage::Format_ARGB32 );
if ( d->previewWidget ) {
d->previewWidget->imageLabel->setPixmap ( QPixmap::fromImage ( image.scaled ( 130,130 ), Qt::AutoColor ) );
}
delete[] colored;
}
}
delete dcimage;
}
DcmRLEDecoderRegistration::cleanup();
DJDecoderRegistration::cleanup();
}
int ACE_TMAIN (int argc, ACE_TCHAR *argv[]) {
// args
string dicomStem(argc > 1 ? argv[1] : "/data/subjects/xc_ferro/TrioTim-35115-20070929-151440-250000/250000");
int series = argc > 2 ? atoi(argv[2]) : 10;
int numImgs = argc > 3 ? atoi(argv[3]) : 248;
long tr = 1000*(argc > 4 ? atof(argv[4]) : 2000);
int port = argc > 5 ? atoi(argv[5]) : 15000;
string host(argc > 6 ? argv[6] : "localhost");
cout << "1 using dicomStem=" << dicomStem << endl;
cout << "2 using series=" << series << endl;
cout << "3 using numImgs=" << numImgs << endl;
cout << "4 using tr=" << tr << endl;
cout << "5 using port=" << port << endl;
cout << "6 using host=" << host << endl;
// Local server address.
ACE_INET_Addr my_addr (port, host.c_str());
// Data transfer object.
ACE_SOCK_Stream stream;
// Initialize the connector.
ACE_SOCK_Connector connector;
// keep making new connections while we havent sent the whole series
DicomImage *image;
for(int i = 0; i < numImgs && (image = loadNextInSeries(dicomStem,series)) != NULL
&& !connector.connect (stream, my_addr); i++) {
cout << "made connection, loading image" << endl;
image->setMinMaxWindow();
unsigned short *upixelData = (unsigned short*)(image->getOutputData(16 /* bits */));
RtExternalImageInfo *ei = new RtExternalImageInfo();
ei->lImageDataLength = image->getOutputDataSize();
ei->lNumberOfPixels = ei->lImageDataLength/2;
ei->bIsMoCo = true;
ei->iNoOfImagesInMosaic = 32;
ei->iMosaicGridSize = 6;
ei->nCol = image->getHeight()/ei->iMosaicGridSize;
ei->nLin = image->getWidth()/ei->iMosaicGridSize;
// ei->nCol = 64;
// ei->nLin = 64;
ei->dThick = 3.5;
ei->dPosSag = 2.50517;
ei->dPosCor = -29.9335;
ei->dPosTra = -75.1856;
ei->dNorSag = -0.00637429;
ei->dNorCor = 0.337923;
ei->dNorTra = 0.941152;
ei->dRowSag = 0.99998;
ei->dRowCor = 0.00194039;
ei->dRowTra = 0.00607602;
ei->dColSag = 0.000227022;
ei->dColCor = 0.941172;
ei->dColTra = -0.337928;
ei->iAcquisitionNumber = i+1;
cout << "sending img " << ei->iAcquisitionNumber << endl;
char *data = new char[ei->iSizeOfRtExternalImageInfo];
data = ei->convertToScannerDataArray();
cout << "sending info of size " << ei->iSizeOfRtExternalImageInfo << endl;
stream.send_n (data, ei->iSizeOfRtExternalImageInfo);
delete data;
cout << "sending img of size " << ei->lImageDataLength << endl;
// shorten to 12 bits
short *pixelData = (short*) malloc(image->getOutputDataSize());
for(int i = 0; i < ei->lImageDataLength/2; i++) {
pixelData[i] = upixelData[i]/16;
}
stream.send_n (pixelData, ei->lImageDataLength);
usleep(tr);
stream.close();
delete ei;
delete image;
free(pixelData);
}
return 0;
}
//************************************
// Method: ReadImageDataSet
// FullName: CDcmMerger::ReadImageDataSet
// Access: public
// Returns: int
// Qualifier:
// Parameter: CImageDataSet * out_pImgDataSet
// Purpose:
//************************************
int CDcmMerger::ReadImageDataSet( CImageDataSet* out_pImgDataSet )
{
//check validation of param
ASSERT(out_pImgDataSet != NULL);
if (out_pImgDataSet == NULL)return SV_MEMORY_ERR;
if ((m_ImageList.GetCount() <= 0) || (m_FileList.GetCount() <= 0))
return SV_FILEIO_ERROR;
int retcode = SV_NORMAL;
//Get size of frame
DicomImage* pDcmImage = NULL;
POSITION pos = NULL;
INT nWidth = 0;
INT nHeight = 0;
INT nNumberOfFrame = 0;
ULONG nSizeOfDataSet = 0;
UINT nSizeOfFrame = 0;
pos = m_ImageList.FindIndex(0);
pDcmImage = m_ImageList.GetAt(pos);
nWidth = pDcmImage->getWidth();
nHeight = pDcmImage->getHeight();
//Count number of frame and check size of all frame.
for (INT i=0; i< m_ImageList.GetCount(); i++)
{
pos = NULL;
pos = m_ImageList.FindIndex(i);
if(pos != NULL)
{
pDcmImage = m_ImageList.GetAt(pos);
if ((nWidth != pDcmImage->getWidth())||
(nHeight != pDcmImage->getHeight()))
{
retcode = SV_UNSUPPORT_FORMAT;
}
else
{
nNumberOfFrame += pDcmImage->getFrameCount();
}
}
else
{
retcode = SV_SYSTEM_ERR;
}
if (retcode != SV_NORMAL) break;
}
//if all frame have the same size -> allocate memory for the dataset
if (retcode == SV_NORMAL)
{
out_pImgDataSet->m_tSize.ndx = nWidth;
out_pImgDataSet->m_tSize.ndy = nHeight;
out_pImgDataSet->m_tSize.ndz = nNumberOfFrame;
nSizeOfDataSet = out_pImgDataSet->m_tSize.ndx * out_pImgDataSet->m_tSize.ndy * out_pImgDataSet->m_tSize.ndz;
nSizeOfFrame = pDcmImage->getOutputDataSize(SV_DCM_OUTPUTBITS);
ASSERT((nSizeOfFrame * nNumberOfFrame) == nSizeOfDataSet);
retcode = out_pImgDataSet->PrepareBuffer(nSizeOfDataSet);
}
//Copy data from DICOM file to the dataset
uchar* pBuff = out_pImgDataSet->GetDataBuff();
POSITION pos1 = NULL;
for (INT i=0; i< m_ImageList.GetCount(); i++)
{
pos1 = NULL;
pos1 = m_ImageList.FindIndex(i);
if(pos1 != NULL)
{
pDcmImage = m_ImageList.GetAt(pos1);
for (INT j=0; j < pDcmImage->getFrameCount(); j++)
{
BOOL sts = pDcmImage->getOutputData(pBuff, nSizeOfFrame,SV_DCM_OUTPUTBITS,j);
if (!sts)
retcode = SV_FILEIO_ERROR;
else
pBuff += nSizeOfFrame;
if (retcode != SV_NORMAL) break;
}
}
else retcode = SV_SYSTEM_ERR;
if (retcode != SV_NORMAL) break;
}
return retcode;
}
// -------------------------------------------------------------------------
void ctkDICOMDatasetView::addImage( DicomImage & dcmImage, bool defaultIntensity )
{
Q_D(ctkDICOMDatasetView);
QImage image;
// Check whether we have a valid image
EI_Status result = dcmImage.getStatus();
if (result != EIS_Normal)
{
logger.error(QString("Rendering of DICOM image failed for thumbnail failed: ") + DicomImage::getString(result));
return;
}
// Select first window defined in image. If none, compute min/max window as best guess.
// Only relevant for monochrome
if (d->AutoWindowLevel)
{
if (dcmImage.isMonochrome())
{
if (defaultIntensity && dcmImage.getWindowCount() > 0)
{
dcmImage.setWindow(0);
}
else
{
dcmImage.setMinMaxWindow(OFTrue /* ignore extreme values */);
dcmImage.getWindow(d->DicomIntensityLevel, d->DicomIntensityWindow);
}
}
}
else
{
dcmImage.setWindow(d->DicomIntensityLevel, d->DicomIntensityWindow);
}
/* get image extension and prepare image header */
const unsigned long width = dcmImage.getWidth();
const unsigned long height = dcmImage.getHeight();
unsigned long offset = 0;
unsigned long length = 0;
QString header;
if (dcmImage.isMonochrome())
{
// write PGM header (binary monochrome image format)
header = QString("P5 %1 %2 255\n").arg(width).arg(height);
offset = header.length();
length = width * height + offset;
}
else
{
// write PPM header (binary color image format)
header = QString("P6 %1 %2 255\n").arg(width).arg(height);
offset = header.length();
length = width * height * 3 /* RGB */ + offset;
}
/* create output buffer for DicomImage class */
QByteArray buffer;
/* copy header to output buffer and resize it for pixel data */
buffer.append(header);
buffer.resize(length);
/* render pixel data to buffer */
if (dcmImage.getOutputData(static_cast<void *>(buffer.data() + offset), length - offset, 8, 0))
{
if (!image.loadFromData( buffer ))
{
logger.error("QImage couldn't created");
}
}
this->addImage(image);
}
