[whatwg] Colour correction (was: Canvas ImageData comments)
mjs at apple.com
Sun Jan 20 15:36:24 PST 2008
On Jan 20, 2008, at 11:03 AM, Henri Sivonen wrote:
> On Jan 20, 2008, at 19:58, Darin Adler wrote:
>> But this rule not yet implemented in WebKit. Instead, when
>> displaying on screen, today's WebKit treats untagged color as if it
>> was in the system's primary display device's color space. This
>> means that no color correction is applied to such colors.
> Yes, and the sRGB approach would Break the Web as long as the Flash
> plug-in doesn't participate.
That's one reason we don't correct untagged colors yet, but this is a
>> or whether the Mac OS X gamma difference from Windows is important
>> when designing this.
> The gamma difference is the foremost problem being "solved" but it
> would be by far easier to solve by changing the Mac OS X default
> gamma to match Windows. Computing color space transformation just
> because Mac OS X is stuck with an unusual default gamma value is an
> overkill. Sure, there are other color space differences, but most of
> the time for most people, the non-gamma differences are less
>> I think the sRGB design is a good one.
> I disagree. Why would you want a brand new Cinema display emulate
> the gamut of an office CRT from the previous millennium potentially
> by clipping instead of stretching the colors to gamut of the device
> at hand?
Wouldn't changing the default gamma have essentially the same effect
(with the added difference that even profile-tagged images could not
take advantage of wider gamut)?
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