Objective: To develop a system for recognizing fake currency that is not easily detectable by the naked eye. Traditional methods like chemical testing are impractical for widespread use, particularly among uneducated populations.

 This system enables users to verify the authenticity of currency by simply taking a picture with a smartphone, providing an accessible and user-friendly solution to the increasing problem of counterfeit notes.

• Method of Printing: Intaglio printmaking technique is utilized for currency notes. It is very difficult to replicate the printed features because of special characteristics of the Intaglio print.

• Ink Properties: The way a particular type of ink reacts to a particular kind of paper is unique and can be used to detect the genuinity or ingenuity of a note. The ink used in the intaglio printing technique will react to the currency paper differently as opposed to the ink used in counterfeit notes.

• Thread: The registration of the currency notes and the text in the security strip are two important security thread-related features.

• Watermark: The mean pixel intensity and standard deviation of the ROI are the two parameters considered for this feature.