func RandomImageSize(size int, data []byte) (image.Image, error) {
randExtent := len(palette.WebSafe) - 32
rand.Seed(time.Now().UnixNano())
colorIndex := rand.Intn(randExtent)
backColorIndex := colorIndex - 1
if backColorIndex < 0 {
backColorIndex = randExtent - 1
}
// Define size, background, and forecolor
imgMaker, err := identicon.New(size,
palette.WebSafe[backColorIndex], palette.WebSafe[colorIndex:colorIndex+32]...)
if err != nil {
return nil, fmt.Errorf("identicon.New: %v", err)
}
return imgMaker.Make(data), nil
}
// RandomImage generates and returns a random avatar image.
func RandomImage(data []byte) (image.Image, error) {
randExtent := len(palette.WebSafe) - 32
rand.Seed(time.Now().UnixNano())
colorIndex := rand.Intn(randExtent)
backColorIndex := colorIndex - 1
if backColorIndex < 0 {
backColorIndex = randExtent - 1
}
// Size, background, forecolor
imgMaker, err := identicon.New(_RANDOM_AVATAR_SIZE,
palette.WebSafe[backColorIndex], palette.WebSafe[colorIndex:colorIndex+32]...)
if err != nil {
return nil, err
}
return imgMaker.Make(data), nil
}