topic Re: Transform a image with Javascript in Alfresco Forum

Transform a image with Javascript

larade — Mon, 11 Sep 2017 08:33:14 GMT

Hello, I have a problem to transform an image. I use a javascript script found in the Alfresco documentation. My version is 5.2. The script :// convert an image to JPG format and resize to thumbnail imagevar thumbImage = document.transformImage('image/jpeg', '-resize 120');The log:ERROR [org.alfre

Re: Transform a image with Javascript

mehe — Mon, 11 Sep 2017 09:27:21 GMT

I had a problem with a "duplicate child name" when trying this.

var thumbImage = document.transformImage('image/jpeg', '-resize 120',document.parent.parent);

worked for me and the thumbnail is created on folder above the document (just for testing). But I didn't get the conversion error...

...ok, I first tried your original js-line with a png and everything works. The 120px Thumbnail is created. So it seems to be a problem with the setup.

I used Alfresco Community 5.2 on Ubuntu Linux and the image.magick version provided by alfresco installer for the test.

Regards,

Martin

Re: Transform a image with Javascript

larade — Mon, 11 Sep 2017 11:37:34 GMT

Thank you Martin for your reply 🙂

Actually, I had modified the script mimetype line ('image/png'). I had the same error as you concerning the duplicate child name.

I have the same version as you (5.2 Community and the default version of ImageMagick). Did you modify settings particularly?

For additional info, I run the script with a rule on a folder? (as admin)

Did you test the script that way too?

Thanks in any case for your help 🙂

Olivier

Re: Transform a image with Javascript

mehe — Mon, 11 Sep 2017 11:50:32 GMT

I didn't modify any settings - but I installed the "missing libraries" (Installing Linux libraries manually | Alfresco Documentation ) before the Installation of Alfresco.

When dealing with conversion problems, I add

log4j.logger.org.alfresco.repo.content.transform.TransformerDebug=debug
log4j.logger.org.alfresco.repo.content.transform.RuntimeExecutableContentTransformerWorker=debug
log4j.logger.org.alfresco.util.exec.RuntimeExecBootstrapBean=debug
log4j.logger.org.alfresco.util.exec.RuntimeExec=debug

to the custom-log4j.properties in tomcat/shared/classes/alfresco/extension

Using the mime types url (.../alfresco/service/mimetypes) you can see which conversions are possible for the configured mime type. The listing for image/jpeg is very long on my system.

Martin

Re: Transform a image with Javascript

larade — Mon, 11 Sep 2017 13:06:16 GMT

Thank you Martin for your responsiveness. I will look at the side of the libraries because I modified the file "custom-log4j.properties" like you without success. I'll let you know. It's amazing anyway.

Olivier

Re: Transform a image with Javascript

larade — Mon, 11 Sep 2017 13:19:24 GMT

Martin,

Can you tell me if you have the same thing when you open in the list "Registered Mimetypes" jpg or png: I have this: Transformable To: Can not be transformed into anything else

Olivier

Re: Transform a image with Javascript

mehe — Mon, 11 Sep 2017 13:25:27 GMT

As I said above, I have many entries for the conversions:

image/jpeg - jpg

Extractors: org.alfresco.repo.content.metadata.TikaAutoMetadataExtracter

Transformable To:

application/eps = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/bmp = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/cgm = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/gif = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/ief = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/jp2 = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/png = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/tiff = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2...

and so on...

also for png:

image/png - png

Extractors: org.alfresco.repo.content.metadata.TikaAutoMetadataExtracter

Transformable To:

application/eps = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/bmp = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/cgm = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/gif = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/ief = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/jp2 = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jng jpeg ltdl png tiff wmf)
image/jpeg = Proxy via: com.sun.proxy.$Proxy27 (Version: ImageMagick 6.9.1-10 Q16 x86_64 2015-08-12 http://www.imagemagick.org Copyright: Copyright (C) 1999-2015 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Features: Cipher DPC Modules Delegates (built-in): freetype jn...

and so on...

also for the "Transformable from" Types.

Re: Transform a image with Javascript

larade — Mon, 11 Sep 2017 13:31:21 GMT

Thanks Martin.  My problem certainly comes from that. I do not have that configuration.
I will look at how to configure this part that is not configured by default in my case. (I'm under microsoft windows)
It going 🙂  Thanks again 🙂

Re: Transform a image with Javascript

mehe — Mon, 11 Sep 2017 13:47:38 GMT

looks like image magick isn't working as expected on your installation. Tried to call it directly under Windows? Should work and give no errors.

Re: Transform a image with Javascript

larade — Tue, 12 Sep 2017 08:36:39 GMT

Hi Martin, Thank you for your help because by creating a file "imagemagick-transform-context.xml", I was able to find the settings you have in your file. The conversion works 🙂 Super! I use a bit but little you tell me when the image is resized if you have the correct exif (width and height). For in my case, the exifs are the same as the original. This causes me a problem because I have to use this image in a software that does not recognize it.  Thanks again Martin, it's really nice to have answered my request.  Olivier

Re: Transform a image with Javascript

mehe — Tue, 12 Sep 2017 09:12:44 GMT

...unfortunally my jpeg has no Exif information, but I think the EXIF tags are not updated by imagemagick's convert.

identify shows nothing:

identify -format '%[EXIF:*]' myimage.jpg

exiftool shows info, but I think because there is no data, exiftool reads it from the physical jpeg data:

---- JFIF ----
JFIF Version : 1.01
Resolution Unit : cm
X Resolution : 28
Y Resolution : 28
---- Composite ----
Image Size : 120x27
Megapixels : 0.003

if you could provide a sample, I could test the conversion...

Re: Transform a image with Javascript

larade — Tue, 12 Sep 2017 13:04:46 GMT

For example, the image I put in attachment has a size of 313X234, after conversion, properties other than the Mime / type have not changed. Actually, the command does not update the exifs, so the software or I have to insert the image Bmp does not accept. I think my problem will not be solved. I have at least advanced on the understanding of the operation of Alfresco.Thanks again Martin 🙂

Re: Transform a image with Javascript

mehe — Tue, 12 Sep 2017 13:40:27 GMT

What you can do: Configure a special transformer for your thumbnails and define a shell script/batchfile/Pythonprog/Javaclass for the conversion where the exif info is updated.

See Content Transformers (and Renditions) | Alfresco Documentation

The conversion done by Image magic convert seems to strip the exif information...

Re: Transform a image with Javascript

larade — Tue, 12 Sep 2017 14:12:58 GMT

Thank you Martin for the time spent :-).
I'm going to move in that direction.
Have a good evening 🙂


Olivier