/irc-logs / w3c / #css / 2015-07-02 / end

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  1. # Session Start: Thu Jul 02 00:00:00 2015
  2. # Session Ident: #css
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  8. # [00:33] <astearns> TabAtkins: FYI, Adobe is on summer break - Dirk may be far away from a keyboard at the moment
  9. # [00:33] <TabAtkins> astearns: "summer break"?
  10. # [00:33] <TabAtkins> I wonder if that's similar to our "no meetings fortnight" we're in the middle of right now
  11. # [00:33] <astearns> TabAtkins: the company shuts down on the week of the 4th
  12. # [00:34] <liam> most of the XML WGs have always shut down for a month or so in the summer, as it's too hard to get the right people on calls
  13. # [00:35] <TabAtkins> We don't actively shut down, just declare that no meeting may take place, so people are free to take vacations.
  14. # [00:35] <TabAtkins> (Or just get some work done for once.)
  15. # [00:39] <TabAtkins> Ugh, this deltaE2000 algorithm is SO HARD.
  16. # [00:40] <liam> oh, for colour difference?
  17. # [00:41] <TabAtkins> Yeah.
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  19. # [00:41] <TabAtkins> Tho it looks like my actual difficulty is in the rgb->lab conversion.
  20. # [00:41] * liam reads http://www.brucelindbloom.com/index.html?Eqn_DeltaE_CIE2000.html and goes off to implement it in a bash scipt :)
  21. # [00:41] <TabAtkins> Which, unbeknownst to me, was *super wrong*.
  22. # [00:42] <liam> yeah, GIMP's conversions had some problems too, that have been worked on recently. This stuff is much harder than it seems it ought to be.
  23. # [00:42] <TabAtkins> (My color library stores everything in rgb, so initializing from a lab and then doing stuff based on lab means converting to/from rgb.)
  24. # [00:43] <liam> yeah. 32bit per channel?
  25. # [00:43] <TabAtkins> JS double
  26. # [00:43] <liam> yeah, ok
  27. # [00:43] <liam> gimp/gegl these days uses 32bit float
  28. # [00:44] <liam> and it wasn't as slow as i'd been afraid
  29. # [00:45] <TabAtkins> Phew, somehow I'm initializing a Lab as (50, 1, 2) and getting back (50, 5.4, 2.1)
  30. # [00:45] <TabAtkins> Something about my a calculations is *way* off.
  31. # [00:45] <TabAtkins> L and b are a little off, but not far.
  32. # [00:46] <liam> groovy colour correction curves!
  33. # [00:50] <TabAtkins> Hmmmmmmmmm, my rgb to lab exactly matches other sample code I'm seeing. Maybe my lab to rgb is wrong?
  34. # [00:51] <liam> http://www.brucelindbloom.com/index.html?Eqn_DeltaE_CIE2000.html might be helpful
  35. # [00:52] <TabAtkins> Yeah, I have the original paper by the deltaE2000 people that I was implementing from.
  36. # [00:52] <TabAtkins> It just looks like I'm doing some wrong things somewhere in it.
  37. # [00:53] <liam> i meant that the calculator there might be useful to test intermediate values & see if you're in the same ballpark, although colour temp, gamma etc make it non-trivial
  38. # [00:55] * heycam|away is now known as heycam
  39. # [00:57] <TabAtkins> Where's the calculator?
  40. # [00:57] <TabAtkins> Oh, on the calc page.
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  45. # [01:23] <liam> :) yes, sorry, i thought i'd pasted a link directly to it
  46. # [01:23] <liam> but it's using frame-based navigation
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  50. # [03:18] <dbaron> an alternative list of the hyphenation dictionaries that Gecko ships is https://mxr.mozilla.org/mozilla-central/source/intl/locales/
  51. # [04:02] <liam> wot, no en-UK or en-CA? :)
  52. # [04:03] <liam> sadly, TeX's hyphenation was never all that good in the first place -- people think it is, mostly because TeX goes to a lot of work to avoid hyphens
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  54. # [04:06] <dbaron> it may well still hyphenate colourize correctly
  55. # [04:07] <dbaron> (colourize is uniquely en-CA)
  56. # [04:13] <liam> :)
  57. # [04:15] <dbaron> though sometimes people like to use the pseudo-language-code en-EH
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  59. # [04:42] * liam checks and finds EH is Western Sahara... and of course Canada :)
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  140. # [16:03] <Florian> TabAtkins: If you're happy with the phrasing Alan and I ended up in this mail, I'll have a pull request coming your way soon: https://lists.w3.org/Archives/Public/www-style/2015Jul/0031.html
  141. # [16:06] <Florian> Oops, I meant this url: https://lists.w3.org/Archives/Public/www-style/2015Jul/0033.html
  142. # [16:07] <Florian> (its Alan's reply)
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