Convert UIImage to/from base 64 encoding

Encoding

//convert the image to NSData firstlet imageData:NSData = UIImagePNGRepresentation(image)!
// convert the NSData to base64 encoding
let strBase64:String = imageData.base64EncodedStringWithOptions(.Encoding64CharacterLineLength)

Decoding

let dataDecoded:NSData = NSData(base64EncodedString: strBase64, options:
NSDataBase64DecodingOptions(rawValue: 0))!
let decodedimage:UIImage = UIImage(data: dataDecoded)!