Text this: Wavelet Approximation and Image Restoration

  ______    _____     ______   __   __     _____  
 /_   _//  |  ___||  /_   _//  \ \\/ //   / ___// 
   | ||    | ||__      | ||     \ ` //    \___ \\ 
  _| ||    | ||__     _| ||      | ||     /    // 
 /__//     |_____||  /__//       |_||    /____//  
 `--`      `-----`   `--`        `-`'   `-----`