Google Images Wins Cherry Tomato Challenge For Attribute Indexing

Tim Bray tests whether Google, Yahoo and MSN image search services can find images that make use of keywords only within the the ALT and TITLE attributes of an image tag.
Google is the only one that can. The Cherry-Tomato Challenge and
A Cherry-Tomato Winner tells the story.

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A screenshot of visual search on Pinterest. On the left is a picture of a copper angle-poise lamp, with the words 'Visually similar results' above it. Down the right-hand side are a number of pins showing similar lamps.
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