Title attribute on img element - not recommended?

I disagree  with the recommendation that title should not be used on images (section 5.9 and 10.4 of HTML tech for WCAG 2). The reason cited is that it may be confusing. I think it has been clarified that title gives supplementary info unlike the alt which gives essential info. Using both alt and title allows authors to  describe the image and put it in perspective. The user is the loser if author is prevented from using the title. It may not be appropriate to use longdesc in a situation but yet some additional info in the title can give a richer meaning to the image. So consider  clarifying use of  title on img with examples. Joe Clark's book contains some.
Sailesh Panchang 
Senior  Web Accessibility Engineer
Deque Systems
www.deque.com

		
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