Rakshak Sood | Mumbai University (original) (raw)
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Papers by Rakshak Sood
International Journal of Computer Applications, 2013
In order to improve the data hiding in all types of multimedia data formats such as image and aud... more In order to improve the data hiding in all types of multimedia data formats such as image and audio and to make hidden message imperceptible, a novel method for steganography is introduced in this paper. It is based on Least Significant Bit (LSB) manipulation and inclusion of redundant noise as secret key in the message. This method is applied to data hiding in images. For data hiding in audio, Discrete Cosine Transform (DCT) and Discrete Wavelet Transform (DWT) both are used. All the results displayed prove to be time-efficient and effective. Also the algorithm is tested for various numbers of bits. For those values of bits, Mean Square Error (MSE) and Peak-Signal-to-Noise-Ratio (PSNR) are calculated and plotted. Experimental results show that the stego-image is visually indistinguishable from the original cover-image when n<=4, because of better PSNR which is achieved by this technique. The final results obtained after steganography process does not reveal presence of any hidden message, thus qualifying the criteria of imperceptible message.
IOSR Journal of Electrical and Electronics Engineering, 2017
Laser communication under wireless communication domain for transmission of voice. The applicatio... more Laser communication under wireless communication domain for transmission of voice. The application purpose of our project is communication, which would be underwater uni-axially transmitted light signal through Laser torch which will act as a carrier between transmitter and receiver. The focus of this project will be Visible Light Communications (VLC)[1]. The project is divided into two main sections transmitter and receiver. The main component in the transmitter is the Laser which can cover distance up to 500m, if any obstruction comes in the path of the beam no sound will be heard at the receiver. The main component in the receiver is the photo-transistor which converts the light energy into electrical energy hence orientation of photo transistor is very important. The light rays from laser must fall on phototransistor. An important feature of laser is privacy. It is virtually impossible for someone to tap into the link. For high security purpose, line-of-sight laser beam is ideal. So, it can be best suited for military applications where security is of utmost concern so that two divers or submarines can communicate with each other. The possible uses that lasers have in underwater environments are growing. Lasers have potential in becoming practical solution to the problem of underwater communication.
International Journal of Computer Applications, 2013
International Journal of Computer Applications, 2013
In order to improve the data hiding in all types of multimedia data formats such as image and aud... more In order to improve the data hiding in all types of multimedia data formats such as image and audio and to make hidden message imperceptible, a novel method for steganography is introduced in this paper. It is based on Least Significant Bit (LSB) manipulation and inclusion of redundant noise as secret key in the message. This method is applied to data hiding in images. For data hiding in audio, Discrete Cosine Transform (DCT) and Discrete Wavelet Transform (DWT) both are used. All the results displayed prove to be time-efficient and effective. Also the algorithm is tested for various numbers of bits. For those values of bits, Mean Square Error (MSE) and Peak-Signal-to-Noise-Ratio (PSNR) are calculated and plotted. Experimental results show that the stego-image is visually indistinguishable from the original cover-image when n<=4, because of better PSNR which is achieved by this technique. The final results obtained after steganography process does not reveal presence of any hidden message, thus qualifying the criteria of imperceptible message.
IOSR Journal of Electrical and Electronics Engineering, 2017
Laser communication under wireless communication domain for transmission of voice. The applicatio... more Laser communication under wireless communication domain for transmission of voice. The application purpose of our project is communication, which would be underwater uni-axially transmitted light signal through Laser torch which will act as a carrier between transmitter and receiver. The focus of this project will be Visible Light Communications (VLC)[1]. The project is divided into two main sections transmitter and receiver. The main component in the transmitter is the Laser which can cover distance up to 500m, if any obstruction comes in the path of the beam no sound will be heard at the receiver. The main component in the receiver is the photo-transistor which converts the light energy into electrical energy hence orientation of photo transistor is very important. The light rays from laser must fall on phototransistor. An important feature of laser is privacy. It is virtually impossible for someone to tap into the link. For high security purpose, line-of-sight laser beam is ideal. So, it can be best suited for military applications where security is of utmost concern so that two divers or submarines can communicate with each other. The possible uses that lasers have in underwater environments are growing. Lasers have potential in becoming practical solution to the problem of underwater communication.
International Journal of Computer Applications, 2013