WebAIM - Web Accessibility In Mind

E-mail List Archives

Help with measuring colour contrast on video


From: Claire Brotherton
Date: Jan 21, 2020 9:40AM

Has anyone got advice or experience of measuring the contrast between text
superimposed a video background?

I would imagine that you have to take stills of the video, sample pixels of
the text and background, and test the colour values. But there could be
thousands of frames in, say, a 1 minute video.

Has anyone got practical tips?

Kind regards


Claire Brotherton
A Bright Clear Web <https://www.abrightclearweb.com>

WordPress website design, development, maintenance and training

Web: https://www.abrightclearweb.com
Facebook: https://www.facebook.com/abrightclearweb
Twitter: @abrightclearweb <https://twitter.com/abrightclearweb>
LinkedIn: https://www.linkedin.com/in/clairebrotherton
Skype: abrightclearweb