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On 4/22/17, 12:01 PM, in article rMNKA.6920$7Y5.5504@fx13.iad, "Mark Lloyd"
<not@mail.invalid> wrote:
> On 04/22/2017 12:28 PM, James Wilkinson Sword wrote:
>
> [snip]
>
>>>> I used to have a printer which would print with all the coloured inks
>>>> if the
>>>> black ran out. It wasn't perfectly black though.
>>>
>>> Right... it is not a "clean" of a black as black ink.
>>
>> Just very very dark brown :-)
>
> Did you know that brown is a very similar color to yellow (dark yellow)?
>
> Also, I use this formula to find the brightness of a RGB color:
>
> brightness = red * .299 + green * .587 + blue * .114
>
> The constants have to do with the perception of brightness.
I used something similar to that when working on this "challenge" that Owl
presented in COLA:
<https://youtu.be/kucxFEbB97g>
The main challenge was just having the terminal color be selected to match
the background (why, who knows, but he wanted that) but I also wanted to
make sure the text could be read. Used a calculated brightness level to
decide if the text should be black or white.
--
Personal attacks from those who troll show their own insecurity. They cannot
use reason to show the message to be wrong so they try to feel somehow
superior by attacking the messenger.
They cling to their attacks and ignore the message time and time again.
<https://youtu.be/H4NW-Cqh308>
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Re: Apple told to warn against charging phone in bath after man's electrocution "James Wilkinson Sword" <imvalid@somewear.com> - 2017-04-22 18:28 +0100
Re: Apple told to warn against charging phone in bath after man's electrocution Snit <usenet@gallopinginsanity.com> - 2017-04-22 10:46 -0700
Re: Apple told to warn against charging phone in bath after man's electrocution Mark Lloyd <not@mail.invalid> - 2017-04-22 14:01 -0500
Re: Apple told to warn against charging phone in bath after man's electrocution "James Wilkinson Sword" <imvalid@somewear.com> - 2017-04-22 20:26 +0100
Re: Apple told to warn against charging phone in bath after man's electrocution Snit <usenet@gallopinginsanity.com> - 2017-04-22 12:30 -0700
Re: Apple told to warn against charging phone in bath after man's electrocution "James Wilkinson Sword" <imvalid@somewear.com> - 2017-04-22 21:26 +0100
Re: Apple told to warn against charging phone in bath after man's electrocution Snit <usenet@gallopinginsanity.com> - 2017-04-22 15:24 -0700
Re: Apple told to warn against charging phone in bath after man's electrocution Mark Lloyd <not@mail.invalid> - 2017-04-23 13:34 -0500
Re: Apple told to warn against charging phone in bath after man's electrocution Snit <usenet@gallopinginsanity.com> - 2017-04-23 12:10 -0700
Re: Apple told to warn against charging phone in bath after man's electrocution Snit <usenet@gallopinginsanity.com> - 2017-04-22 12:55 -0700
Re: W3C/WCAG 2.0 Relative Luminance ( perceived ). Mark Lloyd <not@mail.invalid> - 2017-04-23 13:45 -0500
Re: W3C/WCAG 2.0 Relative Luminance ( perceived ). Snit <usenet@gallopinginsanity.com> - 2017-04-23 12:21 -0700
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