[Webkit-unassigned] [Bug 136418] New: SVG filter effect feGaussianBlur unexpectedly lightens image using linearRGB
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Sun Aug 31 10:45:05 PDT 2014
https://bugs.webkit.org/show_bug.cgi?id=136418
Summary: SVG filter effect feGaussianBlur unexpectedly lightens
image using linearRGB
Product: WebKit
Version: 528+ (Nightly build)
Platform: Unspecified
OS/Version: Unspecified
Status: NEW
Severity: Normal
Priority: P3
Component: SVG
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: david at bonnet.cc
CC: zimmermann at kde.org
Created an attachment (id=237428)
--> (https://bugs.webkit.org/attachment.cgi?id=237428&action=review)
SVG example showing the blur effect with sRGB and linearRGB
When using a gaussian blur filter effect, the resulting image is lightened when using linearRGB for color interpolation. The attached file shows the color alteration. When using the sRGB for color interpolation, results are consistent across browsers, yet the blur effect is less desirable.
This bug has been witnessed on several occasions:
- http://stackoverflow.com/questions/24295043/svg-gaussian-blur-in-safari-unexpectedly-lightens-image
- http://stackoverflow.com/questions/22615663/safari-renders-wrong-colors-when-using-blur-filter
>From the comments on the pages mentioned above, it seems to have been introduced since Safari 7.
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