如何使用dcm4che-3.2.1将JPG图像转换为DICOM文件? [英] How to convert JPG image to DICOM file using dcm4che-3.2.1?
本文介绍了如何使用dcm4che-3.2.1将JPG图像转换为DICOM文件?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我可以设置属性并创建dicom文件,但不能将图像写入dicom文件吗?
I can set the attributes and create the dicom file, but I can not write the image to the dicom file?
推荐答案
我已经尝试过使用现有的图像并且它可以工作,但是我希望它不适用于RGB图像。
I've tried it with an image I have and it works but I expect it won't work for RGB images. Something like this though
BufferedImage jpg = ImageIO.read(new File("myjpg.jpg"));
//Convert the image to a byte array
DataBufferUShort buff = (DataBufferUShort) jpg.getData().getDataBuffer();
short[] data = buff.getData();
ByteBuffer byteBuf = ByteBuffer.allocate(2*data.length);
int i = 0;
while (data.length > i) {
byteBuf.putShort(data[i]);
i++;
}
//Copy a header
DicomInputStream dis = new DicomInputStream(new File("fileToCopyheaderFrom.dcm"));
Attributes meta = dis.readFileMetaInformation();
Attributes attribs = dis.readDataset(-1, Tag.PixelData);
dis.close();
//Change the rows and columns
attribs.setInt(Tag.Rows, VR.US, jpg.getHeight());
attribs.setInt(Tag.Columns, VR.US, jpg.getWidth());
System.out.println(byteBuf.array().length);
//Attributes attribs = new Attributes();
//Write the file
attribs.setBytes(Tag.PixelData, VR.OW, byteBuf.array());
DicomOutputStream dcmo = new DicomOutputStream(new File("myDicom.dcm"));
dcmo.writeFileMetaInformation(meta);
attribs.writeTo(dcmo);
dcmo.close();
编辑1
我假设您的图像在此处具有无符号的短数据缓冲区。
I've assumed your image has an Unsigned short Data Buffer here.
DataBufferUShort buff = (DataBufferUShort) jpg.getData().getDataBuffer();
要处理其他数据缓冲区,应检查类型,相应地进行强制转换,然后转换为字节数组。对于字节缓冲区,应该很容易
To handle other data buffers you should check the type , cast acordingly and then convert to a byte array. For a byte Buffer it should be easy
DataBufferByte buff = (DataBufferByte) jpg.getData().getDataBuffer();
然后
buff.getData(numOfBank)
其中 numOfBank
为您的图片是0
应返回字节数组
这篇关于如何使用dcm4che-3.2.1将JPG图像转换为DICOM文件?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文