Manual:$wgSharpenParameter

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ImageMagick: $wgSharpenParameter
Sharpening parameter to ImageMagick.
Introduced in version:1.10.0 (r21411)
Removed in version:still in use
Allowed values:string
Default value:'0x0.4'
Other settings: Alphabetical | By function

Details[edit]

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)

See also[edit]