image

Documentation

Overview

Image (de)coding and processing magic package.

Index

• func ConvertGifToWebp(gifData *[]byte) (*[]byte, error)
• func CropToSquare(img *image.Image) *image.Image
• func DecodeImage(imgData *[]byte, extInput string) (*image.Image, string, error)
• func EncodeImage(img *image.Image, format string) (*[]byte, error)
• func FixOrientation(img *image.Image, imgBytes *[]byte) (*image.Image, error)
• func ProcessBytes(post *models.Post, postContent *string) (error, int)
• func ResizeImage(img *image.Image, targetWidth int) image.Image

Functions

func ConvertGifToWebp

func ConvertGifToWebp(gifData *[]byte) (*[]byte, error)

https://github.com/sizeofint/webpanimation/blob/master/examples/gif-to-webp/main.go

func CropToSquare

func CropToSquare(img *image.Image) *image.Image

CropToSquare crops an image to a 1:1 aspect ratio (square)

func DecodeImage

func DecodeImage(imgData *[]byte, extInput string) (*image.Image, string, error)

DecodeImage decodes a byte stream to an image

func EncodeImage

func EncodeImage(img *image.Image, format string) (*[]byte, error)

EncodeImage encodes an image back to byte stream (JPEG or PNG)

func FixOrientation

func FixOrientation(img *image.Image, imgBytes *[]byte) (*image.Image, error)

FixOrientation checks the EXIF orientation tag and corrects the image's orientation if necessary

func ProcessBytes

func ProcessBytes(post *models.Post, postContent *string) (error, int)

ProcessBytes takes pointer to a post with image data as []byte stream, and pointer to content string to return as a reference to the novel image

func ResizeImage

func ResizeImage(img *image.Image, targetWidth int) image.Image

ResizeImage resizes an image to a target width and height while maintaining aspect ratio