IMPLEMENTATION OF ADVANCED IMAGE STEGNOGRAPHY WITH HIGHER SECURITY USING LABVIEW AND ITS APPLICATION

Abstract

In secret communication steganography plays vital role for data security. Steganography is very advanced and highly secured data sharing technique. The goal is to encode the data image within the cover image such that the data image's existence is concealed. Cover media for image based steganography is image. Steganography deals with encoding data image information in a given image (called cover image) without making any visible changes to it. For advance security face recognition technique is used, so that only authorized person can access the data image. In this system dual security is provide first is encoding of data image in cover image and second is face recognition. LabVIEW graphical programming environment is a tool for realizing the image acquisition and processing. This software has several advantages: simple implementation, modularity, flexibility, attractive user interface and possibility to develop very easy new features. Face recognition and machine vision applications in automatic inspection of various electronic modules can also be implemented using given algorithm. To transmit and receive the encoded image USRP ( Universal Serial Radio Peripheral ) is used. USRP was developed to as a high speed, low cost and user friendly SDR platform. Apart from this in terms of transmission and reception different modulation scheme (QPSK, BPSK, M-ary PSK) is generated and transmit at different specific frequency in air. At receiver part transmitted signal is received and constellation diagram and eye diagram is plotted. At last BER (Bit Error Rate) is calculated and plotted in graph. An application of face recognition is also implemented: Automatic Attendance System. It is an application of LabVIEW and camera interface which is used for taking attendance in classroom. The system use a camera which is connected to PC on USB interface and attached to each and every classroom for taking snap of students presented. LabVIEW graphical programming environment is a tool for realizing the image acquisition and processing. This software has several advantages: simple implementation, modularity, flexibility, attractive user interface and possibility to develop very easy new features. Face recognition and machine vision applications in automatic inspection of various electronic modules can also be implemented using given algorithm.