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sharpen

package

v1.3.0 Latest Latest Go to latest Published: Nov 27, 2022 License: MIT Imports: 8 Imported by: 0

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type Sharpen struct {
	Sigma string `json:"sigma,omitempty"`
}

Sharpen produces a sharpened version of the image.

func (f Sharpen) Apply(repl *caddy.Replacer, img image.Image) (image.Image, error)

Apply applies the image filter to an image and returns the new image.

type SharpenFactory struct{}

SharpenFactory creates Sharpen instances.

func (ff SharpenFactory) Name() string

Name returns the name if the filter, which is also the directive used in the image filter block.

func (ff SharpenFactory) New(args ...string) (imagefilter.Filter, error)

New initialises and returns a Sharpen instance.

Syntax:

sharpen [<sigma>]

Parameters:

sigma must be a positive floating point number and indicates how much the image will be sharpened. Default is 1.

func (ff SharpenFactory) Unmarshal(data []byte) (imagefilter.Filter, error)

Unmarshal decodes JSON data and returns a Sharpen instance.