Deanimator is a Go package that can detect animated images and "deanimate" them by rendering just the first frame as a static image.
Busy Slack:
Becomes Calm Slack:
Add the module via go mod:
go get github.com/slackhq/deanimator
When using the module, make sure to import / register the deanimation libraries you want to support (similar to the image package in the standard library). For example:
import (
// Animated GIF image support
_ "github.com/slackhq/deanimator/gif"
// Animated PNG image support
_ "github.com/slackhq/deanimator/png"
// Animated WebP image support
_ "github.com/slackhq/deanimator/webp"
)
More information can be found in the Go package documentation.