brille

Documentation

Index

• Constants
• func Binary(file io.Reader, threshold uint8) (io.Reader, string, error)
• func BoxBlur(file io.Reader, radius uint) (io.Reader, string, error)
• func Brightness(file io.Reader, amount int) (io.Reader, string, error)
• func ColorInversion(file io.Reader) (io.Reader, string, error)
• func Contrast(file io.Reader, amount int) (io.Reader, string, error)
• func EightColors(file io.Reader) (io.Reader, string, error)
• func Emboss(file io.Reader) (io.Reader, string, error)
• func Flip(file io.Reader, direction string) (io.Reader, string, error)
• func GammaCorrection(file io.Reader, amount float64) (io.Reader, string, error)
• func GaussianBlur(file io.Reader, sigma float64) (io.Reader, string, error)
• func Grayscale(file io.Reader, grayscaleType string) (io.Reader, string, error)
• func HueRotate(file io.Reader, angle int) (io.Reader, string, error)
• func Kuwahara(file io.Reader, radius uint) (io.Reader, string, error)
• func Laplacian(file io.Reader) (io.Reader, string, error)
• func RotateFixed(file io.Reader, angle uint) (io.Reader, string, error)
• func Sepia(file io.Reader) (io.Reader, string, error)
• func Sharpen(file io.Reader, amount uint) (io.Reader, string, error)
• func Sobel(file io.Reader) (io.Reader, string, error)
• func Solarize(file io.Reader, threshold uint8) (io.Reader, string, error)

Constants

const FLIP_DIRECTION_HORIZONTAL string = constants.FLIP_DIRECTION_HORIZONTAL

const FLIP_DIRECTION_VERTICAL string = constants.FLIP_DIRECTION_VERTICAL

const GRAYSCALE_TYPE_AVERAGE string = constants.GRAYSCALE_TYPE_AVERAGE

const GRAYSCALE_TYPE_LUMINANCE string = constants.GRAYSCALE_TYPE_LUMINANCE

const ROTATE_FIXED_180 uint = constants.ROTATE_FIXED_180

const ROTATE_FIXED_270 uint = constants.ROTATE_FIXED_270

const ROTATE_FIXED_90 uint = constants.ROTATE_FIXED_90

Functions

func Binary

func Binary(file io.Reader, threshold uint8) (io.Reader, string, error)

threshold: 0 to 255

func BoxBlur

func BoxBlur(file io.Reader, radius uint) (io.Reader, string, error)

radius: any uint

func Brightness

func Brightness(file io.Reader, amount int) (io.Reader, string, error)

amount: -255 to 255

func ColorInversion

func ColorInversion(file io.Reader) (io.Reader, string, error)

func Contrast

func Contrast(file io.Reader, amount int) (io.Reader, string, error)

amount: -255 to 255

func EightColors

func EightColors(file io.Reader) (io.Reader, string, error)

func Emboss

func Emboss(file io.Reader) (io.Reader, string, error)

func Flip

func Flip(file io.Reader, direction string) (io.Reader, string, error)

direction: horizontal or vertical

func GammaCorrection

func GammaCorrection(file io.Reader, amount float64) (io.Reader, string, error)

amount: 0 to 3.99

func GaussianBlur

func GaussianBlur(file io.Reader, sigma float64) (io.Reader, string, error)

sigma: 0 to 99

func Grayscale

func Grayscale(file io.Reader, grayscaleType string) (io.Reader, string, error)

grayscale type: average or luminance

func HueRotate

func HueRotate(file io.Reader, angle int) (io.Reader, string, error)

angle: any int

func Kuwahara

func Kuwahara(file io.Reader, radius uint) (io.Reader, string, error)

radius: 0 to 40

func Laplacian

func Laplacian(file io.Reader) (io.Reader, string, error)

func RotateFixed

func RotateFixed(file io.Reader, angle uint) (io.Reader, string, error)

angle: 90, 180 or 270 (use provided constants)

func Sepia

func Sepia(file io.Reader) (io.Reader, string, error)

func Sharpen

func Sharpen(file io.Reader, amount uint) (io.Reader, string, error)

amount: 0 to 100

func Sobel

func Sobel(file io.Reader) (io.Reader, string, error)

func Solarize

func Solarize(file io.Reader, threshold uint8) (io.Reader, string, error)

threshold: any uint8