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Old 04-12-2013, 02:16 PM   #1
twobob
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gdcm: Grassroots DICOM library (KT + PW only)

viz.
http://gdcm.sourceforge.net/wiki/index.php/Main_Page

"[GCDM] ... is a cross-platform library written in C++ for DICOM medical files."

Bundle contains

Code:
./gdcmanon     ./gdcmdiff     ./gdcmgendir   ./gdcminfo     ./gdcmraw      ./gdcmscu
./gdcmconv     ./gdcmdump     ./gdcmimg      ./gdcmpdf      ./gdcmscanner  ./gdcmtar



FROM THE README
Quote:
you CAN run gdcm* like:

cd /mnt/us/extensions/gdcm/bin;
LD_LIBRARY_PATH=../lib:$LD_LIBRARY_PATH ./gdcm<NAME>


Where ./gdcm<NAME> is one of these things...

./gdcmanon ./gdcmdiff ./gdcmgendir ./gdcminfo ./gdcmraw ./gdcmscu
./gdcmconv ./gdcmdump ./gdcmimg ./gdcmpdf ./gdcmscanner ./gdcmtar


################################################
NOTE:
I added a loader script so you can just go:

/mnt/us/extensions/gdcm/bin/loader/<name>

################################################

easier


As with all of my posts that I put this warning on:

IF YOU DON'T KNOW WHAT TO DO WITH THESE FILES YOU DON'T NEED THEM

Also this extension pack currently does not ACTUALLY produce a menu entry... That is by design.

TO REITERATE THIS WILL ONLY WORK ON THE KINDLE TOUCH AND PAPERWHITE

Given a bit more time we may get a viewer and loader going.

Thanks.
Attached Files
File Type: zip KUAL-extensions-gdcm.zip (3.35 MB, 45 views)
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Old 04-12-2013, 02:27 PM   #2
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Maybe attach an example image file or two so that people have something to play with ?

Sorry, I have already lost this morning's link to the web repository of test files.

Not the link I had in mind, but some of these might work with the toolset:
http://www.aycan.de/main/lp/sample_dicom_images.html

These look interesting (if this toolset handles the compression format used):
http://www.osirix-viewer.com/datasets/

Last edited by knc1; 04-12-2013 at 02:34 PM.
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Old 04-12-2013, 02:33 PM   #3
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http://www.microdicom.com/component/...39-images.html
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Old 04-12-2013, 02:41 PM   #4
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example picture of a dicom
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Old 04-12-2013, 03:09 PM   #5
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Quote:
Originally Posted by twobob View Post
example picture of a dicom
That one clearly shows that I have lost all of my marbles.

Probably why I suggested that medical people might own Kindles and want to use them for reading medical stuff, like illustrated reports.
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Old 04-12-2013, 04:29 PM   #6
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I'll have to set aside time to look at the format to consider if we can display all of the data.

The short answer is this is doable. The resolution and zooming is the issue in the long term I guess
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Old 04-12-2013, 05:54 PM   #7
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Quote:
Originally Posted by twobob View Post
I'll have to set aside time to look at the format to consider if we can display all of the data.

The short answer is this is doable. The resolution and zooming is the issue in the long term I guess
Yeah, displaying a 12-bit grayscale image on a 4-bit grayscale display will be a bit tricky.
Certainly will never get FDA approval for the Kindle as a medical display device.

But doing something like a sliding 4-bit window over the 12-bit resolution, along with a "resolution zoom" might make it a useful viewer anyway (I.E: say a sliding 8-bit window that does an 8-to-4 bit dither, or 12-to-4 or ... -- sorry, I had to use that word: dither).
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Old 04-12-2013, 07:03 PM   #8
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Shudder... The dreaded word

I shall set aside the time to learn the ways of the old masters.

This ghost has sat on my shoulder too long. I feel an Ip Man kicking is about due.

I agree with your points



REFS:
For the confused...
The true father of Open Source.
Learn your history.

Last edited by twobob; 04-12-2013 at 10:19 PM.
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Old 04-13-2013, 10:05 AM   #9
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Quote:
Originally Posted by twobob View Post
Shudder... The dreaded word

I shall set aside the time to learn the ways of the old masters.

This ghost has sat on my shoulder too long. I feel an Ip Man kicking is about due.

I agree with your points



REFS:
For the confused...
The true father of Open Source.
Learn your history.
I have PM'd you some suggestions -

In addition there is "Bayer Dithering" (not named after the aspirin brand) ;
At the other extreme, there is "Oxycodone Dithering" (named after the Geekmaster post) ;

We should only need "Excedrin Dithering" to get 12-bit grayscale to display on a 4-bit grayscale display as other than a smudge.
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