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From Jörn Franke <jornfra...@gmail.com>
Subject Re: How to integrate Spark with OpenCV?
Date Wed, 14 Jan 2015 11:50:23 GMT
Basically, you have to think about how to split the data (for pictures this
can be for instance 8x8 matrices) and use spark to distribute it to
different workers which themselves call opencv with the data. Afterwards
you need to combine all results again. It really depends on your image /
video domain how you do this, so I can give you only general instructions.
Le 14 janv. 2015 12:44, "Alonso Isidoro Roman" <alonsoir@gmail.com> a écrit
:

> I was thinking about if it could be possible to use apache spark, and
> opencv in order to recognize stellar objects from the data set provided by
> Nasa,Esa, and the others space agencies. I am asking about advice or
> feelings about it, nor example codes or something else, but if there were
> any, please provide.
>
> Thanks again and forgive the possible off topic.
>
> Alonso
>
> Alonso Isidoro Roman.
>
> Mis citas preferidas (de hoy) :
> "Si depurar es el proceso de quitar los errores de software, entonces
> programar debe ser el proceso de introducirlos..."
>  -  Edsger Dijkstra
>
> My favorite quotes (today):
> "If debugging is the process of removing software bugs, then programming
> must be the process of putting ..."
>   - Edsger Dijkstra
>
> "If you pay peanuts you get monkeys"
>
>
> 2015-01-14 10:49 GMT+01:00 Akhil Das <akhil@sigmoidanalytics.com>:
>
>> Here's an example for detecting the face
>> https://github.com/openreserach/bin2seq/blob/master/src/test/java/com/openresearchinc/hadoop/test/SparkTest.java#L190
>> you might find it useful.
>>
>> Thanks
>> Best Regards
>>
>> On Wed, Jan 14, 2015 at 3:06 PM, <jishnu.prathap@wipro.com> wrote:
>>
>>>  Hi Akhil
>>>
>>> Thanks for the response
>>>
>>> Our use case is  Object detection in  multiple videos. It’s kind of
>>> searching an image if present in the video by matching the image with all
>>> the frames of the video. I am able to do it in normal java code using
>>> OpenCV lib now but I don’t think it is scalable to an extend we could
>>> implement it for thousands of large sized videos. So I thought we could
>>> leverage distributed computing and performance of spark *If possible**.*
>>>
>>> I could see Jaonary Rabarisoa
>>> <http://apache-spark-user-list.1001560.n3.nabble.com/template/NamlServlet.jtp?macro=user_nodes&user=340>
>>> has tried to use OpenCV with spark
>>> http://apache-spark-user-list.1001560.n3.nabble.com/Getting-started-using-spark-for-computer-vision-and-video-analytics-td1551.html.
>>> But I don’t have any code reference on how to do it with OpenCV.
>>>
>>> In case any Image+Video processing library works better with Spark plz
>>> let me know. Any help would be really appreciated.
>>>
>>> .
>>>
>>> Thanks & Regards
>>>
>>> Jishnu Menath Prathap
>>>
>>> *From:* Akhil Das [mailto:akhil@sigmoidanalytics.com]
>>> *Sent:* Wednesday, January 14, 2015 12:35 PM
>>> *To:* Jishnu Menath Prathap (WT01 - BAS)
>>> *Cc:* user@spark.apache.org
>>> *Subject:* Re: How to integrate Spark with OpenCV?
>>>
>>>
>>>
>>> I ddn't played with OpenCV yet, but i was just wondering about your
>>> use-case. What exactly are you trying to do?
>>>
>>>
>>>   Thanks
>>>
>>> Best Regards
>>>
>>>
>>>
>>> Jishnu Prathap <jishnu.prathap@wipro.com> wrote:
>>>
>>>
>>>
>>> Hi, Can somone suggest any Video+image processing library which works
>>> well with spark. Currently i am trying to integrate OpenCV with Spark. I am
>>> relatively new to both spark and OpenCV It would really help me if someone
>>> could share some sample code how to use Mat ,IplImage and spark rdd 's
>>> together .Any help would be really appreciated. Thanks in Advance!!
>>>  ------------------------------
>>>
>>> View this message in context: How to integrate Spark with OpenCV?
>>> <http://apache-spark-user-list.1001560.n3.nabble.com/How-to-integrate-Spark-with-OpenCV-tp21133.html>
>>> Sent from the Apache Spark User List mailing list archive
>>> <http://apache-spark-user-list.1001560.n3.nabble.com/> at Nabble.com.
>>>
>>>
>>>
>>
>>
>

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