Re: GIFs

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