filter

Documentation

Index

• Constants
• func RegisterFilter(t string, c func(m map[string]interface{}) (Filter, error))
• type Filter
  • func New(t string, m map[string]interface{}) (Filter, error)
  • func NewBlur(r float64) Filter
  • func NewBlurFromMap(m map[string]interface{}) (Filter, error)
  • func NewFromConfig(c interface{}) (Filter, error)
  • func NewFromMap(m map[string]interface{}) (Filter, error)
  • func NewNull() Filter
  • func NewNullFromMap(m map[string]interface{}) (Filter, error)
  • func NewOverlay(p int, g string, fi *image.RGBA) Filter
  • func NewOverlayFromMap(m map[string]interface{}) (Filter, error)
  • func NewResize(w, h int) Filter
  • func NewResizeFromMap(m map[string]interface{}) (Filter, error)
  • func NewText(g string, s stamp.Stamp, tc color.Color, bc color.Color) Filter
  • func NewTextFromMap(m map[string]interface{}) (Filter, error)
  • func NewThumbnail(w, h int, g string) Filter
  • func NewThumbnailFromMap(m map[string]interface{}) (Filter, error)
  • func NewWatermark(cs int, t string, c color.Color, h font.Hinting, f *truetype.Font) Filter
  • func NewWatermarkFromMap(m map[string]interface{}) (Filter, error)
• type Filters
  • func (f Filters) Apply(img image.Image) (image.Image, error)

Constants

const GravityCenter string = "center"

const GravityEast string = "east"

const GravityNorth string = "north"

const GravityNorthEast string = "north_east"

const GravityNorthWest string = "north_west"

const GravitySouth string = "south"

const GravitySouthEast string = "south_east"

const GravitySouthWest string = "south_west"

const GravityWest string = "west"

const TypeBlur = "blur"

const TypeNull = "null"

const TypeOverlay = "overlay"

const TypeResize = "resize"

const TypeText = "text"

const TypeThumbnail = "thumbnail"

const TypeWatermark = "watermark"

Functions

func RegisterFilter

func RegisterFilter(t string, c func(m map[string]interface{}) (Filter, error))

Types

type Filter

type Filter interface {
	Apply(img image.Image) (image.Image, error)
}

func New

func New(t string, m map[string]interface{}) (Filter, error)

func NewBlur

func NewBlur(r float64) Filter

func NewBlurFromMap

func NewBlurFromMap(m map[string]interface{}) (Filter, error)

func NewFromConfig

func NewFromConfig(c interface{}) (Filter, error)

func NewFromMap

func NewFromMap(m map[string]interface{}) (Filter, error)

func NewNull

func NewNull() Filter

func NewNullFromMap

func NewNullFromMap(m map[string]interface{}) (Filter, error)

func NewOverlay

func NewOverlay(p int, g string, fi *image.RGBA) Filter

func NewOverlayFromMap

func NewOverlayFromMap(m map[string]interface{}) (Filter, error)

func NewResize

func NewResize(w, h int) Filter

func NewResizeFromMap

func NewResizeFromMap(m map[string]interface{}) (Filter, error)

func NewText

func NewText(g string, s stamp.Stamp, tc color.Color, bc color.Color) Filter

func NewTextFromMap

func NewTextFromMap(m map[string]interface{}) (Filter, error)

func NewThumbnail

func NewThumbnail(w, h int, g string) Filter

func NewThumbnailFromMap

func NewThumbnailFromMap(m map[string]interface{}) (Filter, error)

func NewWatermark

func NewWatermark(cs int, t string, c color.Color, h font.Hinting, f *truetype.Font) Filter

func NewWatermarkFromMap

func NewWatermarkFromMap(m map[string]interface{}) (Filter, error)

type Filters

type Filters []Filter

func (Filters) Apply

func (f Filters) Apply(img image.Image) (image.Image, error)