CODEWITHSUNDEEP
androiddicom
Kalyani
Kalyani

Reputation: 47

Displaying DICOM images on android

I want to display a DICOM image on android. Is there any way to convert a DICOM image to JPEG on android?

Currently the default conversion of DICOM to bitmap returns null. Any idea how to proceed ?

Upvotes: 2

Views: 2263

Answers (2)

David Bauer
David Bauer

Reputation: 122

Another option if you are using Java is looking into DCM4CHE. It's an open source library to read/write and manipulate DICOM files. Reading is as easy as this:

DicomInputStream din = new DicomInputStream(new File("your_image.dcm"));
DicomObject doj = din.readDicomObject();

The DicomObject then contains all kinds of data. There's a neat documentation over here (https://dcm4che.atlassian.net/wiki/spaces/proj/overview?mode=global)

There are certainly easier options to be fair, but if reading and displaying the image is all you want, you might as well give it a shot.

Upvotes: 0

Paolo Brandoli
Paolo Brandoli

Reputation: 4750

Imebra provides Java bindings for android and the documentation shows how to extract an image ready to be displayed:

   // Allocate a transforms chain: contains all the transforms to execute before displaying
    //  an image. Can be empty
    TransformsChain transformsChain = new TransformsChain();

    // Let's use a DrawBitmap object to generate a buffer with the pixel data. We will
    // use that buffer to create an Android Bitmap
    com.imebra.dicom.DrawBitmap drawBitmap = new com.imebra.dicom.DrawBitmap(image, transformsChain);

    int temporaryBuffer[] = new int[1]; // Temporary buffer. Just used to get the needed buffer size
    int bufferSize = drawBitmap.getBitmap(image.getSizeX(), image.getSizeY(), 0, 0, image.getSizeX(), image.getSizeY(), temporaryBuffer, 0);
    int buffer[] = new int[bufferSize]; // Ideally you want to reuse this in subsequent calls to getBitmap()

    // Now fill the buffer with the image data and create a bitmap from it
    drawBitmap.getBitmap(image.getSizeX(), image.getSizeY(), 0, 0, image.getSizeX(), image.getSizeY(), buffer, bufferSize);

    Bitmap renderBitmap = Bitmap.createBitmap(buffer, image.getSizeX(), image.getSizeY(), Bitmap.Config.ARGB_8888);
    imageView.setImageBitmap(renderBitmap);

Upvotes: 2

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