We propose a new MCs detection method using contourlet transform and non-linking simplified PCNN in mammograms.

We first introduce the non-linking simplified PCNN to detect MCs.

We first come up with the evaluate indicators (MCC_PS, CEI) which take the samples proportion into account.

The results tested on two open and common databases including the MIAS and the database from JSMIT.

This method is verified on the mammograms from the People's Hospital of Gansu Province to show our method can be used in clinical application.