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Posted to common-user@hadoop.apache.org by Nitesh Kaushik <ka...@gmail.com> on 2011/06/13 08:15:02 UTC

Regarding reading image files in hadoop

Dear Sir/Madam,

                I am Nitesh kaushik, working with institution dealing in
satellite images. I am trying to read bulk images
                using Hadoop but unfortunately that is not working, i am not
getting any clue how to work with images in hadoop
                Hadoop is working great with text files and producing good
results.

                 Please tell me how can i deal with image data in hadoop.


Regards


Nitesh

Re: Regarding reading image files in hadoop

Posted by Allen Wittenauer <aw...@apache.org>.

On Jun 12, 2011, at 11:15 PM, Nitesh Kaushik wrote:

> Dear Sir/Madam,
> 
>                I am Nitesh kaushik, working with institution dealing in
> satellite images. I am trying to read bulk images
>                using Hadoop but unfortunately that is not working, i am not
> getting any clue how to work with images in hadoop
>                Hadoop is working great with text files and producing good
> results.
> 
>                 Please tell me how can i deal with image data in hadoop.


	The typical problems with using images are:

		a) If you are using streaming, you'll likely need to encode the file or upgrade to a version of hadoop that support binary streams over streaming.

		b) Either need a custom InputFormat or set the split size to match the file size.