Retraction Note: Performance analysis of pre-cancerous mammographic image enhancement feature using non-subsampled shearlet transform.

This document is a retraction note for an article titled "Performance analysis of pre-cancerous mammographic image enhancement feature using non-subsampled shearlet transform." The article has been retracted by the publisher due to concerns regarding compromised editorial handling and peer review process, inappropriate or irrelevant references, and not being in scope of the journal or guest-edited issue. The authors have not responded to correspondence regarding this retraction. Springer Nature, the publisher, remains neutral with regard to jurisdictional claims and institutional affiliations. [Extracted from the article]