images

Documentation

Index

• Variables
• func ResizeImage(ext string, input io.Reader, height uint, width uint) ([]byte, error)
• type ImageType
• type JPEG
  • func (g JPEG) Decode(input io.Reader) (image.Image, error)
  • func (g JPEG) Encode(w io.Writer, m image.Image) error
• type PNG
  • func (g PNG) Decode(input io.Reader) (image.Image, error)
  • func (g PNG) Encode(w io.Writer, m image.Image) error
• type ResizeTypeFn

Variables

var (
	ErrUnsupportedImageType = errors.New("unsupported image type")
	ErrZeroDimensions       = errors.New("image has zero dimensions")
	ErrZeroResize           = errors.New("resize height and width are both zero")
)

Functions

func ResizeImage

func ResizeImage(ext string, input io.Reader, height uint, width uint) ([]byte, error)

Types

type ImageType

type ImageType interface {
	Decode(input io.Reader) (image.Image, error)
	Encode(w io.Writer, m image.Image) error
}

type JPEG

type JPEG struct {
	ImageType
}

func (JPEG) Decode

func (g JPEG) Decode(input io.Reader) (image.Image, error)

func (JPEG) Encode

func (g JPEG) Encode(w io.Writer, m image.Image) error

type PNG

type PNG struct {
	ImageType
}

func (PNG) Decode

func (g PNG) Decode(input io.Reader) (image.Image, error)

func (PNG) Encode

func (g PNG) Encode(w io.Writer, m image.Image) error

type ResizeTypeFn

type ResizeTypeFn = func(input io.Reader, height uint, width uint) ([]byte, error)