title: convert UIImage to NSString - without using encoding & decoding
body: <p>I want to convert the UIImage to NSString without using any encoding and decoding methods. Following code is used.. please guide me.. Here i have used "encoding:NSASCIIStringEncoding". But I don't want to use. I want to use the binary directly. is it possible ?</p>
  
  <pre><code>  UIImage *image = [[UIImage alloc]initWithData:imageName];
    NSData *imageDataString = UIImagePNGRepresentation(image);
    NSString *content = [[NSString alloc]initWithBytes:[imageDataString bytes] length:[imageDataString length] encoding:NSASCIIStringEncoding];
  </code></pre>
  
  <p>Thanks in Advance.</p>