This document describes using a convolutional neural network model to detect fake currency notes. The model is trained on images of different currency denominations like 2000 INR and 500 INR notes. The model is trained to classify images as either real or fake based on features extracted from both sides of the note. The detection process involves image acquisition, pre-processing steps like resizing, removing noise, segmentation, and morphology to smooth edges before feature extraction and comparison using machine learning to detect fake notes.