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rday50
11-24-2002, 01:10 PM
Try the Independent JPEG group for the JPEG bits.
You'll have to
incorporate their code (ANSI C) into your DICOM reader app.

There may already be a Java implementation in dcm4che

or it's ImageJ plug-in spin-off at



Rob.

--
Robert Day ph +61 8 9224 3227
Project Bioengineer fax +61 8 9224 1138
Royal Perth Hospital robert.day@health.wa.gov.au


> -----Original Message-----
> From: jziegler [mailto:jziegler@flash.net]
> Sent: Saturday, 23 November 2002 12:29 PM
> To: BIOMCH-L@NIC.SURFNET.NL
> Subject: [BIOMCH-L] Reading JPEG Compressed DICOM Files
>
>
> Hello All:
>
> Does anyone have source code for reading JPEG compressed
> images that they
> would be willing to share. Specifically, I am looking for
> software that can
> read the Lossless Huffman encoding. This is the default
> standard for DICOM
> files. At present, I must go through a rather painful
> process of loading
> the files into Osiris and saving them in an uncompressed
> DICOM format. This
> is fine for the occasional file, but when I must convert 60+
> images at a
> time, it becomes very frustrating and time consuming. I
> frequently receive
> DICOM files for analysis, and some of them are JPEG
> compressed. I have a
> program that I wrote to convert a series of DICOM files into
> one AVS field
> file. I would like to include source code for reading these
> compressed
> files.
>
> I have tried using "FreeImage" from SourceForge.net. It will
> read a variety
> of compression formats, including numerous JPEG encodings,
> but the one that
> it will not read is the Lossless Huffman. I am aware of a
> several available
> libraries for reading DICOM files, but each one comes at a
> premium price.
>
> Any help you can give would be appreciated.
>
> Thanks,
>
> Jim
> ________________________________
> James M. Ziegler, Ph.D., P.E.
> Medical Metrics, Inc.
> jziegler@orthomet.com
>
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