- From: Chris Lilley <chris@w3.org>
- Date: Wed, 25 Sep 2013 13:23:59 +0200
- To: "Tab Atkins Jr." <jackalmage@gmail.com>
- CC: Rik Cabanier <cabanier@gmail.com>, Simon Sapin <simon.sapin@exyr.org>, www-style list <www-style@w3.org>
Hello Tab, Wednesday, September 25, 2013, 12:25:28 AM, you wrote: > On Tue, Sep 24, 2013 at 3:14 PM, Rik Cabanier <cabanier@gmail.com> wrote: >> On Tue, Sep 24, 2013 at 2:58 PM, Tab Atkins Jr. <jackalmage@gmail.com> >>> I doubt that this "just use the channels" approach is compatible with >>> some other color spaces, like Lab, though. >> >> It is compatible. You can try it in PhotoShop :-) It is compatible because it is an additive colour space. > How does that work, though? I mean, HSL doesn't work in a "just use > the channels" approach, HSL isn't an additive colour space; its syntactic sugar for RGB and thus you composite the RGB values. > which is why the HSL blend modes are > non-separable. Why would Lab work? Because Lab is an additive colourspace with orthogonal channels. -- Best regards, Chris mailto:chris@w3.org
Received on Wednesday, 25 September 2013 11:24:02 UTC