Manual:$wgSharpenParameter/pl

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<translate> ImageMagick</translate>: $wgSharpenParameter
Sharpening parameter to ImageMagick.
<translate> Introduced in version:</translate>1.10.0 (r21411)
<translate> Removed in version:</translate><translate> still in use</translate>
<translate> Allowed values:</translate>(string)
<translate> Default value:</translate>'0x0.4'

Szczegóły

This setting is used for the value of the -sharpen parameter to ImageMagick. See the description of this parameter, and an explanation of the values it can take (although -sharpen does not take a threshold).

Note that the parameter is only passed to ImageMagick when, for a given image,

perimeter of the thumbnail being generated < ($wgSharpenReductionThreshold × perimeter of the original image)

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