Examine true DICOM images in a Flash viewer

Applications developed in Flash / Actionscript traditionally had an important limitation: Only a subset of file types could be dynamically loaded into the application. One of the many improvements in the version 9 of the Flash player, was the ability to load any binary data.

This is a prototype in which a CT DICOM image is loaded and shown in a Flash viewer. The image has a color depth of 12 bits grayscale (the original values ot the Hounsfield units but it is stored using 16 bits), so it can not be managed the same way as if it were a traditional 24 bit color RGB image. In the example, the viewer applies a linear transform to grayscale, allowing the user to adjust the window parameters (Window Center / Window Width) just in the same way as you do in a classical DICOM viewer.

The viewer initially loads the uncompressed raw data containing the image. It is a 512KB set of data (512 x 512 x 16 bits), so it can take a bit to load on slow connections.

21-feb-2009