Android : The Flexible Operating System

Android is leading the smartphone market as a champion with the leadership rate of 84 %, over 3.3 billion smartphones are running on the Android operating system because of its efficiency and performance.   Android : It is an open source operating system which is made on Linux-kernel. Today Android is featured in almost 70% of smart electronics globally but the primary sector that has hooked with this operating system is the smartphone market. On average, almost every fourth of the smartphone is running on the Android operating system. And because it is open source, it has a massive community of developers across the globe.   The First Boot: The journey of this revolutionary operating system has begun in October 2003 [1] by Andy Rubin and his three teammates. Rubin described this project as “tremendous potential in developing smarter mobile devices that are more aware of its owner’s location and preferences” [1]. Later on, one of the members of Google estimated the potential of the futuristic operating system because it has the efficiency to become a revolutionary OS and they desired to buy it but the first meeting didn’t work well, but later on July 2005 Google acquired the android at the…

Augmented Reality : Immersive Technology

Augmented reality is the experience of the collaboration between the real world and the virtual objects. All these reality concepts such as the virtual reality and augmented reality are related to the immersion of either the fictional world or the collaboration of a fictional world with the real world. AR is a revolutionary technology for learning, for instance, it will be easy for the students to understand the human body by having an all the round look at it. Credits: Wareables   Introduction to Augmented Reality: Credits: Wired The meaning of the word augmented is to make something greater by adding to it. Well, the concept of augmented reality is the same, where the artificial objects are added to the real world with the help of the sensors and depth effects. Augmented reality is the technology that overlays information and virtual objects on real-world scenes in real-time [1]For instance if somebody wants to look inside of the human stomach and in the practical way that would be too costly and risky as well but with the help of the augmented reality even a 5-year-old child can do that with ease. In the augmented reality artificial 3-dimensional objects have been created and…

Robotics: The Future is Here

“The robots are coming, whether we like it or not, and will change our economy in dramatic ways” said the Kristen Soltis Anderson [1]. Credits: World of Robotic Online  Robotics, the field that has been changed a since its invention and during this time of evolution many of the new technologies have included in the robotics such as Electrical Engineering, Mechanical Engineering, and computer engineering. The computer Engineering was the base of the robotics as per the programming of the robots has done through the computers. To understand the present and the future possibilities of robotics, we must have the knowledge of the history of the robotics.   Introduction to the robotics: The answer to the question “what is a robot” varies and thus there is no proper definition. At the beginning of robotics, the definition could be: A robot is a machine designed to accomplish particular tasks [2]. But today the tables have turned that robots are this smarter that they can cook food for you and can make you ready for the job, like a personal assistant. Today the robotics industry has spread in all the sectors, there are robots available for all sort of works, for instance, whether…

Journey of Computers

“If you want to progress, you have to evaluate”; Today not only the humans but the computers have evaluated as well, concerning their performance, usability and stability. In the earlier days when the computer was invented it was supposed to do basic tasks like computations and today almost all of our daily life work is handled by the computers. This journey of computers from a single task calculator to game changer is a tremendous journey and today we are going to focus on that journey.   What is a Computer? A computer is nothing but an electronic device that performs processes calculation and operation from given instructions [1]. Computation consists of three commands as input, process, and output at where the input is the instructions that we are providing to the computer through our input devices such as keyboard, mouse, and joystick. Then as receiving the input, the computer hardware starts processing the input and after completing the process it produces the output to the user using the output hardware such as a monitor, printer etc.   How did it start? Who first thought about the computer? Who invented this ultrasmart device? The computer was invented in the 19th century by…

What is Red Green Blue (RGB) Color Model?

Colors are important for human for communicating with the daily encountered objects as well as his species, these colors should be represented formally and numerically within a mathematical formula so it can be projected on device/ computer storage and applications, this mathematical representation is known as color model that can hold the color space, by the means of color’s primary components (Red, Green, and Blue) the computer can visualizes what the human does in hue and lightness. Color Model Color models play an important role in real world applications such as computer graphics, image processing, television broadcasting, etc. Each color model has its own significance and applicable in different application domains. One of the interesting areas of digital image processing is to improve the image information for better processing image. Color model is a method for specifying colors in a standard way and the color model is represented by three dimensional coordinate system where each color is represented by single point within three dimensional systems. In case of human visual system, rods cells (in the eye) are sensitive to low intensity light waves recognizing binary images whereas cones cells are sensitive to red, green and blue light waves , thus,…

What is Hue Saturation Value (HSV) color Model?

To utilize color as a visual cue in multimedia, image processing, graphics and computer vision applications, an appropriate method for representing the color signal is needed. The different color specification systems or color models address this need. Color spaces provide a rational method to specify order, manipulate and effectively display the object colors taken into consideration. The purpose of a color model is to facilitate the specification of colors in some standard generally accepted way. In essence, a color model is a specification of a 3-D coordinate system and a subspace within that system where each color is represented by a single point. Basic Overview of HSV color Model Hue, Saturation, and Value (HSV) are a color model that is often used in place of the RGB color model in graphics and paint programs. In using this color model, a color is specified then white or black is added to easily make color adjustments. HSV may also be called HSB (short for hue, saturation and brightness). This color space describes colors (hue or tint) in terms of their shade (saturation or amount of gray) and their brightness value. The HSV color space (Hue, Saturation, Value) is often used by people…

What is different Steganography Technique in Image Steganography?
Computer Graphics , Cyber Security / June 19, 2018

Steganography is the idea of hiding private or sensitive data or information within something that appears to be nothing out of the normal. The word steganography comes from the Greek Steganos, which mean covered or secret and –graphy mean writing or drawing. Therefore, steganography means, literally, covered writing Over the past few years, numerous steganography techniques that embed hidden messages in multimedia objects have been proposed. Different Techniques There have been many techniques for hiding information or messages in images in such a manner that the alterations made to the image are perceptually indiscernible. Common approaches are including: Figure 1 Different Steganography Technique Least Significant Bit (LSB) Least significant bit (LSB) insertion is a common, simple approach to embedding information in a cover image. The least significant bit (in other words, the 8th bit) of some or all of the bytes inside an image is changed to a bit of the secret message. When using a 24-bit image, a bit of each of the red, green and blue colour components can be used, since they are each represented by a byte. In other words, one can store 3 bits in each pixel. An 800 × 600 pixel image, can thus store…

What is Multimedia Communication in Computer Graphics?

Multimedia communication deals with the transfer, the protocols, services and mechanisms of discrete media data (such as text and graphics) and continuous media data (like audio and video) in/over digital networks. Multimedia systems have attracted much attention during the last few years in the society as a whole and in the information technology field in particular. Multimedia communication comprises the techniques needed for distributed multimedia systems. To enable the access to information such as audio and video data, techniques must be developed which allow for the handling of audiovisual information in computer and communication systems Basic Overview of Multimedia Communication Multimedia is everywhere as a communication method to educate, inspire, and encourage people through several digital forms like photography, video, illustration, animation, audio, text, interactive websites and engaging environments. Expressive and talented people with digital communication skills have the desirable job skills that employers are seeking including analytical thinking, creative problem solving, and working collaboratively. Our multimedia communication degrees are designed to balance artistic technique and technical proficiency with professional competency in print, web, and social media applications. Visual literacy, creativity, and collaboration are integrated into a curriculum that teaches you how to develop digital media content that responds to…

What is Graphics Rendering in Computer Graphics?

Computer generated images by default render the entire scene in perfect focus. The desire to render the world around us is common to many applications. As part of this ‘virtual world’ it is natural to include representations of humans. A realistic visual approximation of a human requires a polygon mesh of significant complexity, especially as it has to be sufficiently tessellated to allow smooth deformations of the model. Image-based modeling and rendering techniques have recently received much attention as a powerful alternative to traditional geometry-based techniques for image synthesis. Instead of geometric primitives, a collection of sample images are used to render novel views. Definition of Rendering Graphics Graphics Rendering is the process of generating an image from a model, by means of a software program. The model is a description of three dimensional objects in a strictly defined language or data structure. It would contain geometry, viewpoint, texture and lighting information. The image is a digital image or raster graphics image. The term may be by analogy with an “artist’s rendering” of a scene. ‘Rendering’ is also used to describe the process of calculating effects in a video editing file to produce final video output. It is one of…

What is Virtual Reality in Computer Graphics?

Virtual Reality is a major asset and aspect of our future. It is the key to experiencing, feeling and touching the past, present and the future. It is the medium of creating our own world, our own customized reality. Modeling is used to build structures that serve as proxies for other objects. Virtual reality is more than just interacting with 3D worlds. By offering presence simulation to users as an interface metaphor, it allows operators to perform tasks on remote real worlds, computer generated worlds or any combination of both. The simulated world does not necessarily have to obey natural laws of behavior. Such a statement makes nearly every area of human activity a candidate for a virtual reality application. However, we can identify some application areas were benefits are more straightforward than others. Overview of Virtual Reality A virtual reality system is essentially an interactive simulation that can represent a real or abstract system. Virtual Reality (VR) is the use of computer graphics and other technologies to create a simulated environment in which the user interacts.  While computer graphics supplies the visual component of the experience via a normal screen, a stereoscopic display, or head‐mounted technology; a variety of other devices…

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