go_imagehelper

README

go-imagehelper

go image helper

this is a util that i need when i programed a tool that resize image

GetImgFromUrlToBytes

IoReaderToImage

ResizeImgToByteFromBytes

ResizeGif

ByteToImage

IoReaderToBytes

BytesToIoReader

ImageToPaletted

ResizeGifToGifs

Documentation

Index

• func ByteToImage(imgbyte []byte) (image.Image, string, error)
• func BytesToIoReader(img []byte) io.Reader
• func GetImgFromUrlToBytes(url string) (b []byte, filetype string, er error)
• func ImageToPaletted(img image.Image) *image.Paletted
• func IoReaderToBytes(reader io.Reader) ([]byte, error)
• func IoReaderToImage(reader io.Reader) (image.Image, string, error)
• func ResizeGifToGifs(srcFile io.Reader, width int, height int) (*gif.GIF, error)
• func ResizeImgToByteFromBytes(img []byte, filetype string, width int64) ([]byte, string, error)

Functions

func ByteToImage

func ByteToImage(imgbyte []byte) (image.Image, string, error)

func BytesToIoReader

func BytesToIoReader(img []byte) io.Reader

bytes to ioreader

func GetImgFromUrlToBytes

func GetImgFromUrlToBytes(url string) (b []byte, filetype string, er error)

func ImageToPaletted

func ImageToPaletted(img image.Image) *image.Paletted

func IoReaderToBytes

func IoReaderToBytes(reader io.Reader) ([]byte, error)

ioreadertoBytes

func IoReaderToImage

func IoReaderToImage(reader io.Reader) (image.Image, string, error)

Turn ioreader to image

func ResizeGifToGifs

func ResizeGifToGifs(srcFile io.Reader, width int, height int) (*gif.GIF, error)

Resize the gif to another thumbnail gif

func ResizeImgToByteFromBytes

func ResizeImgToByteFromBytes(img []byte, filetype string, width int64) ([]byte, string, error)

resize img from bytes to bytes