- From: Nigel Megitt <nigel.megitt@bbc.co.uk>
- Date: Wed, 25 Feb 2015 15:05:55 +0000
- To: Philip Jägenstedt <philipj@opera.com>, Glenn Adams <glenn@skynav.com>
- CC: Michael Borthwick <mb@michaelborthwick.com.au>, Silvia Pfeiffer <silviapfeiffer1@gmail.com>, David Singer <singer@apple.com>, "public-texttracks@w3.org" <public-texttracks@w3.org>
On 25/02/2015 05:24, "Philip Jägenstedt" <philipj@opera.com> wrote: >On Wed, Feb 25, 2015 at 12:16 PM, Glenn Adams <glenn@skynav.com> wrote: >> >> On Tue, Feb 24, 2015 at 9:36 PM, Philip Jägenstedt <philipj@opera.com> >> wrote: >>> >>> On Sat, Feb 21, 2015 at 7:10 AM, Michael Borthwick >>> <mb@michaelborthwick.com.au> wrote: >>> > On 08/04/2014, at 1:08 PM, Silvia Pfeiffer wrote: >>> > >>> >> Note: I've made the change to "lime" and updated the related text, >>>see >>> >> https://dvcs.w3.org/hg/text-tracks/rev/07a843b7f31d >>> >> >>> >> Please let me know if there are more changes necessary. >>> >> >>> >> Regards, >>> >> Silvia. >>> > >>> > >>> > Dear list members, >>> > >>> > For those who are interested I have made the 22 minute video of my >>>SMPTE >>> > Australia 2013 talk regarding this issue available online with >>> > appropriate >>> > amendments to reflect the changes kindly made by Silvia last year to >>>the >>> > mapping of green into CSS lime. >>> > >>> > >>> > >>>http://michaelborthwick.com.au/closed_captioning_online_streaming_video_ >>>dfxp_webvtt.html >>> >>> Thanks Michael, this was a great talk! I'm not sure why, but I found >>> the trouble with green and conflicting standards very amusing, a very >>> familiar kind of problem. >>> >>> Since WebVTT doesn't have any dedicated syntax for colors it really >>> comes down to the CSS that goes along with the captions, and of course >>> any mapping specs. Unfortunately, I suspect you will not be the last >>> to spend time looking for a suitable green color. >> >> >> Haven't had a chance to watch yet, but from TTML: >> >> <named-color> >> : ... >> | "green" // #008000ff >> | "lime" // #00ff00ff >> | "olive" // #808000ff >> >> >>> >>> >>> Did you ever hear back from the BBC about which the ultimate colors >>> are? I doubt that #00FF00 is actually used on the Web, it's so bright! >> >> >> Y = 0.299R + 0.587G + 0.114B > >Is this BBC green? Multiplying with 255 and rounding, that is rgb(76, >150, 29), assuming it's the same RGB colorspace of course... Teletext green is one of the 'full intensity' colours, in 4-bit RGB = 0,15,0. That would map to "lime" = #00ff00ff. For a reference see the Colour Map in ETS 300 706. Nigel > >In any case, it's a lot nicer than #00FF00, and a bit brighter than >#008000. > >Philip >
Received on Wednesday, 25 February 2015 15:06:52 UTC