This paper introduces the EV-SIFT technique, an advanced face recognition method designed for faces altered by plastic surgery, which extracts key features based on both contrast and volume for improved accuracy. The method integrates support vector machine (SVM) classification and demonstrates superior performance compared to traditional approaches such as PCA and standard SIFT. The study further evaluates the recognition of surgical modifications using a dataset of pre- and post-surgery images, highlighting the challenges and improvements in accuracy achieved with the new technique.