package blobs import ( "image" _ "image/gif" _ "image/jpeg" _ "image/png" "log" "os" ) func validateButton(path string) bool { file, err := os.Open(path) if err != nil { log.Println("won't open") log.Println(err) return false } defer file.Close() cfg, _, err := image.DecodeConfig(file) if err != nil { log.Println("won't decode") log.Println(err) return false } return cfg.Width == 88 && cfg.Height == 31 }