[Webkit-unassigned] [Bug 27909] WebKit cannot decode jpegs that are in CMYK or YCCK format

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=27909


Alexey Proskuryakov <ap at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
                 CC|                            |ap at webkit.org
     Ever Confirmed|0                           |1




--- Comment #14 from Alexey Proskuryakov <ap at webkit.org>  2009-08-07 10:25:48 PDT ---
+        // R = 1 - C => 1 - (1 - iC*iK) => iC*iK
+        // G = 1 - M => 1 - (1 - iM*iK) => iM*iK
+        // B = 1 - Y => 1 - (1 - iY*iK) => iY*iK

These formulas give really poor fidelity - this may be better than a broken
image icon, but may be not.

Per comments in Chromium bug, this doesn't work in IE or Safari either. Is
there a need to rush a low-quality implementation?

We'll need a bug to track fixing this for Safari, as well.

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