How to create GIF animations from a sequence of images in Go?

To create GIF animations from a sequence of images in Go, you can use the gif package provided in the standard library. Here's a step-by-step guide:

Import the necessary packages:

import (
    "image"
    "image/color/palette"
    "image/draw"
    "image/gif"
    "os"
)

Create an *os.File to write the GIF animation:

outputFile, err := os.Create("animation.gif")
if err != nil {
    panic(err)
}
defer outputFile.Close()

Create a slice to store the sequence of images:

var images []*image.Paletted

Iterate over your sequence of images and convert each image to an *image.Paletted:

// Assuming `seqImages` is your sequence of images
for _, img := range seqImages {
    // Convert each image to paletted
    palettedImg := image.NewPaletted(img.Bounds(), palette.Plan9)
    draw.FloydSteinberg.Draw(palettedImg, img.Bounds(), img, image.ZP)
    
    // Append the paletted image to the slice
    images = append(images, palettedImg)
}

Set the desired GIF options like the delay between frames:

delay := 10                 // Delay between frames (in 100ths of a second)
loopCount := 0              // 0 means loop forever, -1 means no loop

Create the GIF animation:

gif.EncodeAll(outputFile, &gif.GIF{
    Image:     images,
    Delay:     []int{delay},
    LoopCount: loopCount,
})

And that's it! You should now have an animation.gif file containing the sequence of images as a GIF animation.

Remember to handle any potential errors throughout the process to ensure smooth execution.