DCMTK简介八-dcmpstat程序库

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八、dcmpstat程序库

dcmpstat: 一个描述状态(presentation state)库和可用工具。This module contains classes that implement a high-level API for the DICOM Softcopy Grayscale Presentation State Storage SOP Class. It also contains various support classes that are used by DICOMscope, a free DICOM viewer that has been developed as a demonstrator for presentation states. See http://dicom.offis.de/dscope。

主要接口：

--DVPresentationState: 一个灰度软拷贝描述状态。这个类管理着一个描述状态对象的数据结构。描述状态可以创建、读、写和更改。在dvpstat.h中定义。

--DVInterface: 这个接口类是用来帮助软拷贝描述状态浏览器工作的。这个类管理着数据库机制，允许开始和停止网络交互，并访问图像和描述状态。在dviface.h中定义。

--DVPSStoredPrint: the representation of a Stored Print object。在文件dvpssp.h中定义。

工具：

dcmmkcrv: Add 2D curve data to image

dcmmklut: Create DICOM look-up tables

dcmp2pgm: Read DICOM image and presentation state and render bitmap

dcmprscp: DICOM basic grayscale print management SCP

dcmprscu: Print spooler for presentation state viewer

dcmpschk: Checking tool for presentation states

dcmpsmk: Create DICOM grayscale softcopy presentation state

dcmpsprt: Read DICOM images and presentation states and render print job

dcmpsrcv: Network receive for presentation state viewer

dcmpssnd: Network send for presentation state viewer

举例：

--给一幅DICOM图像创建一个缺省的描述状态

DcmFileFormat infile;

DcmFileFormat outfile;

if (infile.loadFile("image.dcm").good())

{

DVPresentationState pstate; // presentation state handler

if (pstate.createFromImage(*infile.getDataset()).good())

{

    // serialize presentation state into DICOM data set structure

    if (pstate.write(*outfile.getDataset(), OFFalse).good())

    {

      // and write to file

      outfile.saveFile("gsps.dcm", EXS_LittleEndianExplicit);     

    }

}

}

--应用一个描述状态中的灰度变换管道给一幅DICOM图像

DcmFileFormat imagefile;

DcmFileFormat gspsfile;

if (imagefile.loadFile("image.dcm").good() &&

    gspsfile.loadFile("gsps.dcm").good())

{

DVPresentationState pstate; // presentation state handler

if (pstate.read(*gspsfile.getDataset()).good()) // parse gsps object

{

    // attach presentation state to image data

    if (pstate.attachImage(&imagefile, OFFalse).good())

    {

      const void *pixel; // pointer to pixel data, one byte per pixel

      unsigned long width;   // width of image bitmap

      unsigned long height; // height of image bitmap

      if (pstate.getPixelData(pixel, width, height).good())

      {

        /* do something useful with the pixel data */

      }

      pstate.detachImage(); // release connection between GSPS and image

    }

}

}

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