Lithium/pipelines/executable_step.go

package pipelines

import (
	"github.com/disintegration/imaging"
	"image"
)

type IExecutableStep interface {
	Execute(src image.Image) (image.Image, error)
}

// Resize image

type ResizeImageStep struct {
	Step
	Options struct {
		Width   int  `json:"width"`
		Height  int  `json:"height"`
		Upscale bool `json:"upscale"`
	} `json:"options"`
}

func (s ResizeImageStep) Execute(src image.Image) (image.Image, error) {
	src = imaging.Resize(src, s.Options.Width, s.Options.Height, imaging.Linear)
	return src, nil
}