Daikon is a pure JavaScript DICOM reader. Here are some of its features:

• Works in the browser and Node.js environments.
• Parses DICOM headers and reads image data.
• Supports compressed DICOM data.
• Orders and concatenates multi-file image data.
• Supports RGB and Palette data.
• Supports Siemens "Mosaic" image data.
• Parses Siemens CSA header.

Uncompressed:

• 1.2.840.10008.1.2 (Implicit VR Little Endian)
• 1.2.840.10008.1.2.1 (Explicit VR Little Endian)
• 1.2.840.10008.1.2.2 (Explicit VR Big Endian)

Compressed:

• 1.2.840.10008.1.2.1.99 (Deflated Explicit VR Little Endian)
• 1.2.840.10008.1.2.4.50 (JPEG Baseline (Process 1) Lossy JPEG 8-bit)
• 1.2.840.10008.1.2.4.51 (JPEG Baseline (Processes 2 & 4) Lossy JPEG 12-bit)
• 1.2.840.10008.1.2.4.57 (JPEG Lossless, Nonhierarchical (Processes 14))
• 1.2.840.10008.1.2.4.70 (JPEG Lossless, Nonhierarchical (Processes 14 [Selection 1]))
• 1.2.840.10008.1.2.4.80 (JPEG-LS Image Compression (Lossless Only))
• 1.2.840.10008.1.2.4.81 (JPEG-LS Image Compression)
• 1.2.840.10008.1.2.4.90 (JPEG 2000 Image Compression (Lossless Only))
• 1.2.840.10008.1.2.4.91 (JPEG 2000 Image Compression)
• 1.2.840.10008.1.2.5 (RLE Lossless)

API and more examples

daikon.Parser.verbose=true;varimage=daikon.Series.parseImage(data);varrawData=image.getRawData();// ArrayBuffervarinterpretedData=image.getInterpretedData();// Float32Array (handles byte order, datatype, scale, mask)//var interpretedData = image.getInterpretedData(true); // Array//var interpretedData = image.getInterpretedData(false, true); // Object with properties: data, min, max, minIndex, maxIndex, numCols, numRows

varseries=newdaikon.Series();varfiles=fs.readdirSync('./data/volume/');// iterate over filesfor(varctrinfiles){varname='./data/volume/'+files[ctr];varbuf=fs.readFileSync(name);// parse DICOM filevarimage=daikon.Series.parseImage(newDataView(toArrayBuffer(buf)));if(image===null){console.error(daikon.Series.parserError);}elseif(image.hasPixelData()){// if it's part of the same series, add itif((series.images.length===0)||(image.getSeriesId()===series.images[0].getSeriesId())){series.addImage(image);}}}// order the image files, determines number of frames, etc.series.buildSeries();// output some header infoconsole.log("Number of images read is "+series.images.length);console.log("Each slice is "+series.images[0].getCols()+" x "+series.images[0].getRows());console.log("Each voxel is "+series.images[0].getBitsAllocated()+" bits, "+(series.images[0].littleEndian ? "little" : "big")+" endian");// concat the image data into a single ArrayBufferseries.concatenateImageData(null,function(imageData){console.log("Total image data size is "+imageData.byteLength+" bytes");});

See tests/browser.html for an example. For a more advanced example, see this class in Papaya.

Get a packaged source file:

• daikon.js
• daikon-min.js

Or install via NPM:

npm install daikon 

Or install via Bower:

bower install daikon 

npm test 

See the release folder for the latest builds or build it yourself using:

npm run build 

This will output daikon.js and daikon-min.js to build/.

Daikon makes use of JPEGLosslessDecoderJS for JPEG Lossless support as well as the following third-party libraries:

• g-squared for JPEG Baseline support.
• image-JPEG2000 for JPEG 2000 support.

Also thanks to these contributors:

• @DLiblik
• @nickhingston

The authors of this software have not sought nor received approval for clinical/diagnostic use of this software library.