graphics

Documentation

Index

• func ReadImage(img []byte) (image.Image, error)
• func ResizeLimit(img []byte, limit float64, quality int) (*bytes.Buffer, error)
• func Thumbnail(img []byte, size, quality int) (*bytes.Buffer, error)

Functions

func ReadImage

func ReadImage(img []byte) (image.Image, error)

ReadImage converts bytes to image. Supports webp.

func ResizeLimit

func ResizeLimit(img []byte, limit float64, quality int) (*bytes.Buffer, error)

ResizeLimit resizes the image if it's long side bigger than limit. Use default limit 900 if limit is set to zero. Use default quality 85 if quality is set to zero.

func Thumbnail

func Thumbnail(img []byte, size, quality int) (*bytes.Buffer, error)

Thumbnail create a thumbnail of imgFile. Use default size(128) if size is set to zero. Use default quality(85) if quality is set to zero.