transform

Documentation

Index

• func CropImage(m image.Image, crop string) image.Image
• func GetResampleFilter(filter string) imaging.ResampleFilter
• func Image(m image.Image, v url.Values) (image.Image, error)
• func ResizeImage(m image.Image, w, h string, filter imaging.ResampleFilter) image.Image
• func RotateImage(m image.Image, orient string) image.Image

Functions

func CropImage

func CropImage(m image.Image, crop string) image.Image

CropImage performs cropping operations based on the api described: https://docs.fastly.com/api/imageopto/crop

func GetResampleFilter

func GetResampleFilter(filter string) imaging.ResampleFilter

GetResampleFilter gets the resample filter to use for resizing.

func Image

func Image(m image.Image, v url.Values) (image.Image, error)

Image transforms the image based on data found in the request. Following the available query params in the root README, this will parse the query params and apply image transformations.

func ResizeImage

func ResizeImage(m image.Image, w, h string, filter imaging.ResampleFilter) image.Image

ResizeImage resizes the image with the given resample filter.

func RotateImage

func RotateImage(m image.Image, orient string) image.Image

RotateImage implements the rotating scheme described on: https://docs.fastly.com/api/imageopto/orient