Multi Compression With One instance of DGATE

Hi,

kFactorFile = /home/user/data/dicom.sql
ACRNemaMap = /home/user/data/acrnema.map
SOPClassList = /home/user/data/dgatesop.lst

These are correct.

My /home/user/data/acrnema.map :
CONQUESTSRV1 localhost 20000 un

Hello Marcel,

I can't make dgate works with weasis in wado connexion...
But it works fine with the directdownloadfile directive.

In one of your precedent post, you've said that it is possible to make a script to save the same study withg differents compressions (in different directories).
Can you help me to do this because i don't even know the lua syntax to do that.
All i want is : for one study have the uncompressed files, j1 compressed files in j1 directory and jk compressed files in jk directory :
e.g :
dicom/patientid/all_dcm_uncompressed
dicom/patientid/j1/all_dcm_j1compressed
dicom/patientid/jk/all_dcm_jkcompressed

Many thanks.

Hi Marcel,

sorry for my late answer !!!

When i use Importconverter with lua script it returns an error :

*** lua run error compress.lua:1: attempt to call global 'mkdir' (a nil value)

I have tested with /bin/mkdir but it does not work at all.

Any idea ?

Thanks

Hi Marcel,

Many thanks for all.
I do not need to create directory really !
I simply rename the dcm with j1- or jk- prefix....
So it si good for me like this.

Is there any documentation about the whole syntax for scripting ni lua in dgate ?
In order not to ask you for the next Times !!!!

I Will try to make wado work....

Thanks before.

Hi,

when i'm using this in my dicom.ini :

[lua]ImportConverter0 = script('compression jk'); Data:Write('dicom/'..Data.PatientID..'/jk-'..Data.SOPInstanceUID..'.dcm')ImportConverter1 = script('compression un')

dgate only convert dcm to jk but not un !!!
It says for each file :

Wed Jan 15 23:52:00 2014 Written file: /home/user/dicom/6009/1.2.840.113619.2.55.3.2265615377.749.1389012136.720.59.dcm
Wed Jan 15 23:52:00 2014 Importconverter-1.0: compression to un
Wed Jan 15 23:52:00 2014 [recompress]: recompressed with mode = un (strip=0)
Wed Jan 15 23:52:00 2014 Importconverter-1.0: compression to jk
Wed Jan 15 23:52:01 2014 [recompress]: recompressed with mode = jk (strip=0)

Two files are created but with only one compression (the same : jk).
When i'm using separatly each one it works...

Is there any problems with this method ?

Hi,

It's working when the un instruction is the last one.
Now it works.
But there is a problem with compression by using lua scripts !
When i'm using the dropfilecompression in dicom.ini to compress, the result is good.
With the lua instruction (using inportconverter0 = compress.lua) the dcm are not good and very compressed (not usable) !!!

Is there any difference between the two algorithms of compression ???
And so, is it possible to do the same thing using directly inportconverts without lua ?

Thanks.

Hi,

i'm going to try this.

When i'm using jlXX (jl10) compression on CT studies, there is a sort of frame or grid which appears in the background of each slide.
That don't in jk compression.

Is there any problem with these algorithms or it's my bug ?

Thanks

Hi,

i'm using gdcmconv to compress in j2k too and it's fine.
With JL10, it depends on studies, generally we have /10 (i think jl10 means 100/10 = 10, jl5 means 100/5 = 20) ???

Using gdcmconv works fine but it is slower and i don't want to use many other system but dgate !!!
If it is a Jasper problem, perhaps it is because i'm working under linux....

If anyone can test it under windows...

Thanks

Hi all,

after many changes made with Marcel, i give you the way to do good compression in Conquest by using lua scripting :

What is important to have (for me) :
Context :
- dgate-1.4.17c-64bits
- linux server Ubuntu 12.04.4 LTS 64 Bits
- postgresql 9.1.12

dicom.ini :

FileNameSyntax           = %id/%sopuid.dcm# Configuration of compression for incoming images and archivalDroppedFileCompression   = unIncomingCompression      = unExportConverters = 1[lua]ExportConverter0 = dofile('compress.lua')

compress.lua :

x = DicomObject:new()
x:Read('dicom/'..Data.PatientID..'/'..Data.SOPInstanceUID..'.dcm')
print('compressing with jk')
x:Script('compression jk');
x:Write('dicom/'..Data.PatientID..'/jk-'..Data.SOPInstanceUID..'.dcm')
x:Read('dicom/'..Data.PatientID..'/'..Data.SOPInstanceUID..'.dcm')
print('compressing with jl')
x:Script('compression jl');
x:Write('dicom/'..Data.PatientID..'/jl-'..Data.SOPInstanceUID..'.dcm')

The result is that my studies are available in three compression mode :
- un
- jk
- jl

Very intressting for those who can't make Weasis works in wado mode with linux...
You can use downloading mode instead !

Bye, and many thanks to Marcel !