Watermarking belongs to hide particular information, so that you can easily detect any tamper detection .It is used for confidenality, authentication and copy right protection. In this paper watermarking is done with the help of least significant bit technique (LSB).As LSB technique is used as it has less effect on image. This new algorithm is using LSB of original image and idoing ‘&&’ operati...

(Markus Kahn, 1995) defines Steganography as art and science of communicating in a way which hides the existence of the communication. In contrast to cryptography, where the enemy is allowed to detect, intercept and modify messages without being able to violate certain security premises guaranteed by a cryptosystem, the goal of steganography is to hide messages inside other innocent messages in...

We present results of broad band BVRI observations of a sample of galaxies with a low surface brightness (LSB) disk and a bulge. These galaxies are well described as exponential disks and exponential bulges with no preferred value for either scale length or central surface brightness. The median B band disk scale length is 12.6 kpc (H0 = 75 km s−1 Mpc−1) which is much larger than scale lengths ...

Steganography is the branch of information hiding for secret communication. The simplest and widely used steganography is the LSB based approach due to its visual quality with high embedding capacity. However, LSB based steganography techniques are not secure against statistical steganalysis mainly χ2 attack and Regular Singular (RS) attack. These two staganalysis can easily estimate the hidden...

Emergency Medical Services (EMS) is a basic medical acts carried to an accident victim with the purpose of sustaining life and preventing a decline in body condition before the victim finally getting further treatment from medical personnel. One evacuation tool of first aid commonly used is Long Spinal Board (LSB). This tool is set up as an emergency stretcher boards made from wood or polymer w...

In this paper, we introduce a novel high bit rate LSB Picture information concealing system. The fundamental thought of the proposed LSB computation is information installing that causes negligible implanting contortion of the host picture. Utilizing the proposed two-stage result, information concealing bits are inserted into higher LSB layers, resulting in expanded vigor against clamor expansi...

Steganography is an art and science of writing hidden message in the cover image. This paper proposes a new approach for a steganography in color image based on detection technique combining two transform for dividing an image into edge and smooth areas. LSB insertion techniques are used to hide information at the edge areas whereas another LSB substitution technique is used to hide message at ...

This paper designed a tapped delay line Time-to-Digital Converter(TDC) based on 0.18μm CMOS, there is total level 128 voltage-controlled delay line.The symmetric delay phase-locked loop is used to increase the stability of delay chain and reduce the system clock’s skew and jitter. The simulation results show that : when the voltage is 1.8V, and the reference clock frequency is 250MHz, the least...

1. INTRODUCTION Steganography is the art and science of covert communication where secret data is hidden in innocent carriers, making it undetectable by human visual system (HVS). To increase the security of steganography, the secret information is encrypted using a cryptographic algorithm before message concealment. Steganography can be used for a number of useful applications including nation...