- From: Chuck Letourneau <cpl@starlingweb.com>
- Date: Fri, 24 May 2002 08:24:05 -0400
- To: Charles McCathieNevile <charles@w3.org>
- Cc: <w3c-wai-eo@w3.org>
Received on Friday, 24 May 2002 08:40:43 UTC
Regarding my question of black-and-white versus gray scale testing for contrast problems, Charles wrote: >Well, 2 color is about the extreme limit of conditions that people have. On >the other hand, there are people who need that kind of setup, so I would >think it is a reasonable thing to do. I think my concern with two-color viewing or printing is that the algorithm that decides whether to replace a color with black or with white may lead to unrealistic contrast displays. It would seem likely that some color combinations that would appear very similar in a good gray scale rendering (and thus be shown to have too low contrast) could be rendered very clearly if black and white were the only choices the system had. Maybe this is too unlikely a scenario. Unfortunately, I don't have an example I can point at to support my concern - just a memory of having encountered the problem at some time in the past six years. I don't think we need to pursue this further unless the working group has strong feelings about changing the point. Cheers! Chuck
Received on Friday, 24 May 2002 08:40:43 UTC