imagex

Documentation

Index

• Constants
• Variables
• func CropCircle(img image.Image) image.Image
• func Decode(r io.Reader) (image.Image, error)
• func DecodeFile(path string) (image.Image, error)
• func DrawPureCircle(color color.RGBA, radius int) image.Image
• func DrawPureRect(w, h int, color color.RGBA) image.Image
• func DrawText(src image.Image, text string, color color.Color, face font.Face, x, y int) image.Image
• func FmtExt(path string) string
• func Montage(imgs []image.Image, opts ...MontageOption) image.Image
• func NewRGBA(r, g, b, a uint8) color.RGBA
• func Resize(width, height uint, img image.Image) image.Image
• func Save(img image.Image, path string, options ...Option) error
• func Thumbnail(maxWidth, maxHeight uint, img image.Image) image.Image
• type Direction
• type MontageOption
• type Option
  • func DefaultQuality() Option
  • func HighQulity() Option
  • func LowQulity() Option
  • func NewGifOption(numColors int, quantizer draw.Quantizer, drawer draw.Drawer) Option
  • func NewJpgOption(quality int) Option

Constants

const (
	JPG  = "jpg"
	JPEG = "jpeg"
	PNG  = "png"
	GIF  = "gif"
	BMP  = "bmp"
	WEBP = "webp"
)

Variables

var ErrUnsupportExt = fmt.Errorf("unsupported image extension")

var MontageOpts = montageOptions{}

Functions

func CropCircle

func CropCircle(img image.Image) image.Image

func Decode

func Decode(r io.Reader) (image.Image, error)

func DecodeFile

func DecodeFile(path string) (image.Image, error)

func DrawPureCircle

func DrawPureCircle(color color.RGBA, radius int) image.Image

func DrawPureRect

func DrawPureRect(w, h int, color color.RGBA) image.Image

DrawPureRect draw a pure color rectangle image using the given size and color.

func DrawText

func DrawText(src image.Image, text string, color color.Color, face font.Face, x, y int) image.Image

func FmtExt

func FmtExt(path string) string

func Montage

func Montage(imgs []image.Image, opts ...MontageOption) image.Image

func NewRGBA

func NewRGBA(r, g, b, a uint8) color.RGBA

func Resize

func Resize(width, height uint, img image.Image) image.Image

func Save

func Save(img image.Image, path string, options ...Option) error

func Thumbnail

func Thumbnail(maxWidth, maxHeight uint, img image.Image) image.Image

Types

type Direction

type Direction int

type MontageOption

type MontageOption func(opts *montageOptions)

type Option

type Option interface{}

func DefaultQuality

func DefaultQuality() Option

func HighQulity

func HighQulity() Option

func LowQulity

func LowQulity() Option

func NewGifOption

func NewGifOption(numColors int, quantizer draw.Quantizer, drawer draw.Drawer) Option

func NewJpgOption

func NewJpgOption(quality int) Option