- From: Roberts, Elizabeth A. <ROBERTS@hfsecmail.rdh.ohio-state.edu>
- Date: Fri, 28 Mar 2003 15:32:47 -0500
- To: "'w3c-wai-ig@w3.org'" <w3c-wai-ig@w3.org>
Vincent Flanders wrote: > > I haven't examined every accessibility verification tool out there, but > it seems rather strange to me the ones I've looked at want me to > manually examine each GIF file for flicker. Even *I* know that it's > possible for a programmer to examine the contents of a GIF file and tell > if it's animated. Are there any accessibility tools out there that check > the GIFs for you and eliminate the ones that obviously aren't animated? This is slightly different, but closely related: Deque <http://www.deque.com/> creates a product called RAMP that detects unacceptable flicker rates and fixes them. From <http://www.deque.com/products/rampsection508.htm>: "Section 508 Paragraph (j) Pages shall be designed to avoid causing the screen to flicker with a frequency greater than 2 Hz and lower than 55 Hz. "Automatically detects flickering rates with unacceptable frequency Auto Remediation of animated gifs, marquee elements, and other blinking elements." I just happened to go to a product demonstration recently, but haven't had a chance to test it out for myself; they did use the product to change a gif during the demonstration and it seemed to work well. --Liz Roberts
Received on Friday, 28 March 2003 15:32:50 UTC