Abstract Nowadays, multimedia security is a major issue. Images, video, audio, and text files lose credibility in most times, because they face several attacks related to illegal distribution, duplication, manipulation of the information conveyed by them. Digital watermarking an important tool for protecting digital content. This paper introduces efficient hybrid image scheme. It consists two s...

Digital Image Analysis (DIA) has been employed to characterize the time evolution of a bubble injected from a single orifice into a pseudo 2-dimansional gas-solid fluidized bed. The injected bubble diameter increased with the square root of time before detachment. During bubble free flight in the bed, its diameter remains approximately constant. The center of mass of the bubble increases with t...

Digital watermarking is the processing of combined information into a digital signal. A watermark is a secondary image, which is overlaid on the host image, and provides a means of protecting the image. In order to provide high quality watermarked image, the watermarked image should be imperceptible. This paper presents different techniques of digital image watermarking based on spatial & frequ...

The use of digital images is increasing all the time in personal digital photography, medical imaging, and fingerprint image databases. The goal of this research is to improve the image quality of a given compressed digital image while maintaining the same file size of the image. Wavelet based image compression is improved upon by using Genetic Algorithms on a supercomputer to evolve transforms...

The imaging technology is being enhancing day by day, there are a lot of possibilities of reproduction and manipulation of digital data such as digital image, digital audio and digital video, hence a strong digital copyright mechanism must be produced in place. So the protection of digital data content from unauthorized users and the problem of copyright management plays very vital role. The Di...

Digital image processing is an emerging tool to predict fruit quality; therefore present study was carried out to develop an image processing technique for investigating the storage life of cantaloupe. Potassium permanganate (KMnO4) impregnated materials were used to prolong the postharvest life of cantaloupe fruit and the effects of these treatments were evaluated by 3 image textural features ...