image

Documentation

Index

• func ImageToWriter(img image.Image, w io.Writer, format ImageFormat) error
• func IsImage(filename string) bool
• func ReaderToImage(r io.Reader) (image.Image, error)
• func ResizeImageToChan(imageChan chan<- image.Image, semaphore semaphore.Semaphore, ...)
• func ResizeMonitor(imageChan chan image.Image, wg *sync.WaitGroup)
• type Algorithm
• type ImageFormat
  • func GetImageFormat(filename string) ImageFormat
• type ImageSize
  • func (s *ImageSize) GetScales(originalImageBounds image.Rectangle) float64

Functions

func ImageToWriter

func ImageToWriter(img image.Image, w io.Writer, format ImageFormat) error

func IsImage

func IsImage(filename string) bool

func ReaderToImage

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

func ResizeImageToChan

func ResizeImageToChan(
	imageChan chan<- image.Image,
	semaphore semaphore.Semaphore,
	wg *sync.WaitGroup,
	originalImage image.Image,
	destinationImage ImageSize,
	algorithm Algorithm,
)

func ResizeMonitor

func ResizeMonitor(imageChan chan image.Image, wg *sync.WaitGroup)

Types

type Algorithm

type Algorithm string

const (
	BiLinear        Algorithm = "BiLinear"
	ApproxBiLinear  Algorithm = "ApproxBiLinear"
	CatmullRom      Algorithm = "CatmullRom"
	NearestNeighbor Algorithm = "NearestNeighbor"
)

type ImageFormat

type ImageFormat string

const (
	Jpeg ImageFormat = "jpeg"
	Png  ImageFormat = "png"
	Gif  ImageFormat = "gif"
	Webp ImageFormat = "webp"
)

func GetImageFormat

func GetImageFormat(filename string) ImageFormat

type ImageSize

type ImageSize struct {
	X int `yaml:"x"`
	Y int `yaml:"y"`
}

func (*ImageSize) GetScales

func (s *ImageSize) GetScales(originalImageBounds image.Rectangle) float64