Image Edge Detection Based on Gaussian Mixture Model in Nonsubsampled Contourlet Domain

Algorithm 2

Local mold maxima suppression algorithm.

Input: new high-frequency directional sub-bands

If

 If

  ;

 End

End

ElseIf

 If

  ;

 End

End

ElseIf

 If

  ;

 End

End

Else

 If

  ;

 End

End

Output: (new high-frequency directional sub-bands )