dcm4che解析DICOM文件生成JPEG图像

dcm4che概述

dcm4che是为专注于医疗健康企业开发的基于DICOM标准的开源应用和工具的集合。目前最新的版本是dcm4che3.3.8。本片文章主要讲的是使用dcm4che3.3.8解析DICOM文件生成JPEG图像文件。

运行环境

java：jre1.8.0_131，jdk1.8.0_131;

注：使用的是32位java运行环境，因为之前使用的是64位，然后生成JPEG时出现不能生成等错误（具体错误记不清楚了），需要使用32位环境然后安装一些java的其他的环境。

jar包

dcm4che3.3.8：
- dcm4che-image-3.3.8.jar
- dcm4che-imageio-3.3.8.jar
- dcm4che-tool-dcm2jpg-3.3.8.jar
- dcm4che-core-3.3.8.jar
log4j：
- log4j-1.2.17.jar
- slf4j-api-1.7.5.jar
- slf4j-log4j12-1.7.5.jar

具体实现

主要由两个.java构成，Dcm2jpgIOStreamOutput.java和Dcm2JpgMain.java。
Dcm2jpgIOStreamOutput.java：

import java.awt.image.BufferedImage;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.OutputStream;import java.util.Iterator;import javax.imageio.ImageIO;import javax.imageio.ImageReadParam;import javax.imageio.ImageReader;import javax.imageio.stream.ImageInputStream;import org.dcm4che3.data.Attributes;import org.dcm4che3.imageio.plugins.dcm.DicomImageReadParam;import org.dcm4che3.util.SafeClose;import com.sun.image.codec.jpeg.JPEGCodec;import com.sun.image.codec.jpeg.JPEGImageEncoder;public class Dcm2jpgIOStreamOutput {    private final ImageReader imageReader = ImageIO.getImageReadersByFormatName("DICOM").next();    private float windowCenter;    private float windowWidth;    private boolean autoWindowing = true;    private int windowIndex;    private int voiLUTIndex;    private boolean preferWindow = true;    private Attributes prState;    private int overlayActivationMask = 0xffff;    private int overlayGrayscaleValue = 0xffff;    private int frame = 1;      public int getFrame() {        return frame;    }    public void setFrame(int frame) {        this.frame = frame;    }    public void setWindowCenter(float windowCenter) {        this.windowCenter = windowCenter;    }    public void setWindowWidth(float windowWidth) {        this.windowWidth = windowWidth;    }    public void setAutoWindowing(boolean autoWindowing) {        this.autoWindowing = autoWindowing;    }    public void setWindowIndex(int windowIndex) {        this.windowIndex = windowIndex;    }    public void setVoiLUTIndex(int voiLUTIndex) {        this.voiLUTIndex = voiLUTIndex;    }    public void setPreferWindow(boolean preferWindow) {        this.preferWindow = preferWindow;    }    public void setPrState(Attributes prState) {        this.prState = prState;    }    public void setOverlayActivationMask(int overlayActivationMask) {        this.overlayActivationMask = overlayActivationMask;    }    public void setOverlayGrayscaleValue(int overlayGrayscaleValue) {        this.overlayGrayscaleValue = overlayGrayscaleValue;    }    public void convert(File src, File dest) throws IOException{        Iterator<ImageReader> iter = ImageIO.getImageReadersByFormatName("DICOM");        ImageReader reader = iter.next();              ImageInputStream iis = ImageIO.createImageInputStream(src);        BufferedImage bi;        OutputStream out = null;        try{            reader.setInput(iis, false);            bi = readImage(iis);            if (bi == null) {                System.out.println("\nError: " + src + " - couldn't read!");                return;            }            out = new BufferedOutputStream(new FileOutputStream(dest));            JPEGImageEncoder enc = JPEGCodec.createJPEGEncoder(out);  //这里也可以使用流将图像导出到web应用，用来搭建web版的PACS等。            enc.encode(bi);         }finally{            SafeClose.close(iis);            SafeClose.close(out);        }    }    private ImageReadParam readParam(){        DicomImageReadParam param = (DicomImageReadParam) imageReader.getDefaultReadParam();        param.setWindowCenter(windowCenter);        param.setWindowWidth(windowWidth);        param.setAutoWindowing(autoWindowing);        param.setWindowIndex(windowIndex);        param.setVOILUTIndex(voiLUTIndex);        param.setPreferWindow(preferWindow);        param.setPresentationState(prState);        param.setOverlayActivationMask(overlayActivationMask);        param.setOverlayGrayscaleValue(overlayGrayscaleValue);         return param;    }    private BufferedImage readImage(ImageInputStream iis) throws IOException{        imageReader.setInput(iis);        return imageReader.read(frame -1, readParam());    }}

Dcm2JpgMain.java：

import java.io.File;import java.io.IOException;public class Dcm2JpgMain {    public static void main(String[] args) throws IOException {        try{            for(int i = 1;i < 2;i++){                System.out.print("No: " + String.format("%06d", i) + "   Started  ");                String tempStr = String.format("%06d", i);                File src = new File("F:\\dicomfiles\\LIDC-IDRI-0827\\1.3.6.1.4.1.14519.5.2.1.6279.6001.728284743932342406301468721019\\1.3.6.1.4.1.14519.5.2.1.6279.6001.253322967203074795232627653819\\" + tempStr + ".dcm"); //这里我原本测试的是大概400个dcm文件，最后一次测试只实验了一张，这里填上dcm文件的具体位置就行。                File dest = new File("F:\\dicomfiles\\dcm2jpg\\" + tempStr + ".jpg");  //生成的JPEG图像位置                         Dcm2jpgIOStreamOutput dcm2jpg = new Dcm2jpgIOStreamOutput();                          dcm2jpg.convert(src, dest);                         System.out.println("------>   Result:Completed");            }        }catch(IOException e){             e.printStackTrace();        }catch(Exception e){            e.printStackTrace();        }    }}

Q： 690567521