I created an application for searching the Phoenix raw image datasets.
It uses the metadata to calculate similarity between a query and each of the image products.
In addition to this, after providing an initial query you can refine this by selecting a particular image and asking to see 'More Like This'. I need to refine the similarity method used. I will perhaps allow users to specify which image properties are more important, this information can then be used to weight the similarity calculation.
I'm using the metadata from sol 9, thanks to Emily for posting it a while back before she went on holidays and mHoward for outputting it from MMB. The image features used are whatever are pulled from the metadata, so any changes in their there will automatically be reflected when I reload the application.
I'll update the metadata as soon as I can.
Here's the link
Phoenix Visual Image Search