Hi, The short answer is yes you can process images in Hadoop. Think of the image as a multi-line byte stream.
As to an existing class, I don't believe that it exists, but shouldn't be too difficult to cobble. (If you can read in XML records for processing you should be able to read in a file containing a series of images.) Note: I'm assuming that you're either reading in a directory w multiple image files, or an image file w multiple images. Otherwise you probably don't want to use Hadoop. > Date: Mon, 29 Nov 2010 14:56:35 -0500 > Subject: Image as input to M-R in Hadoop > From: [email protected] > To: [email protected] > > Hi, > > I am a beginner to Hadoop and I am looking for some help in implementing the > Mapper with an image as input. Is there any predefined Writable class for > processing image? If so, how do I use it? > > Also I have read somewhere that compressed formats cannot be processed in > Hadoop. If this is true, am I making any sense in saying that the JPEG > images (which are also compressed format) cannot be processed by Hadoop? > Please correct me if I have misunderstood this concept. > > Thanks, > -- > Aravinth
