Text this: Wavelet frames of dilation factor M

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