•The PRINT SCREEN button in Windows copies the screen image to the clipboard. Digital cameras save images in a JPEG format by default. 640 x 480 bits. Thus GIF format is lossless only for the image with 256 colors or less. Graphics. Photoshop- This is the native Photoshop file format created by Adobe. = (640 x 480) / 8 bytes = (640 x 480) / (8 x 1024) KB= 37.5KB. It also allows students to process deep and complex issues in the abstract, and mentally stimulating ways. Therefore each pixel of such image can hold 28=256 values between 0 and 255. Another term used is ‘multimedia principle‘ shows that a person will retain more from words and pictures as opposed to just words. JPEG images work much better than GIFs. Much attention is given to specialized use of software packages used in dumping graphics, and the saving or storing of binary files of graphic images. brief historical context of image processing, principles of human perception of visual information, applications in the area of image processing. A bitmap is a simple matrix of the tiny dots (pixels) that form an image and are displayed on a computer screen or printed. Each pixel is stored as a single bit (0 or 1). data reduction in spectral domain, PCA ( Principal component analysis), standards of multimedia – audio and video data compression MPEG1,2,4,7. Summary: Difference Between Graphics and Images is that a graphic, or graphical image, is a digital representation of non-text information such as a drawing, chart, or photo.While an image which can be also called as Still Image, Digital image is the binary representation of any type of visual information like drawings, individual video frames, logos, pictures, graphs etc. GIFs can be animated, which is another reason they became so successful. BMP- Bitmap- The bitmap file format (BMP) is a very basic format supported by most Windows applications. This provision allows the background colors of the web page to be shown through the image. JPEG (pronounced JAY-peg) is a graphic image file produced according to a standard from the Joint Photographic Experts Group, an ISO/IEC group of experts that develops and maintains standards for a suite of compression algorithms for computer image files. An image is represented by bitmap. The most common way to discover the type of a file, is to look at the file extension. Therefore, these are not suitable for the internet. Technological advances have changed the hardware and software used for developing multimedia from the traditional analog equipment to computer-based or digital multimedia systems. Images can be created by using different techniques of representation of data called data type like monochrome and colored images. An image consists of a rectangular array of dots called pixels. However, with the advance in technology, very soon computers were not only able to handle images, but also to create new ones and edit them. Vector images can be resized to any required resolution without loosing clarity. It is a saying that has been around as long as MS PowerPoint. This paper discusses some of the ways one can study graphics on the Apple II microcomputer. Capturing graphics information from the command line. When your document is ready to be shared with others or for publication. 8-bit color graphics are of two forms. For color images, one needs enough bits per pixel to represent all the colors in the image. Hence, such an image is also referred to as a binary image. signal sampling, digital representation of the image 2D signal, grayscale and color images, resolution in space, dynamics of the video signal, aliasing. Some important data types of images are following: 1. It is supported by many image editing applications, software used by scanners and photo retouching programs. It consists of a collection of graphics device interface function calls to the MS-Windows graphice drawing library.Metafiles are both small and flexible, hese images can be displayed properly by their proprietary softwares only. In case of a rich, true color image GIF may lose 99.998% of the colors. 8-bit color images - 8-bit color graphics is a method of storing image information in a computer's memory or in an image file, where one byte (8 bits) represents each pixel. We present a system to capture and view “Gigapixel images”: very high resolution, high dynamic range, and wide angle imagery consisting of several billion pixels each. The number of entries in the palette determines the maximum number of colors which can appear on screen simultaneously. signal sampling, digital representation of the image 2D signal, grayscale and color images. A common example would be a palette of 256 colors that is the number of entries is 256 and thus each entry is addressed by an 8-bit pixel value. The maximum number of colors that can be displayed at once is 256. Images are composed exclusively of gray shades, which vary from black being at the weakest intensity to white being at the strongest. Images and Graphics. This is only format that is platform independent. Converting Images To Digital Computer Data So ok, so far we’ve discussed that the world is analogue, and the computer is digital, but, you say… can we get back to pictures? It store information as 24-bit color. There are two types of graphics used: bitmaps (paint graphics) and vector (draw graphics). Note that a pixel is a picture element in digital image. In 1-bit images, each pixel is stored as a single bit (0 or 1). CAPTURING AND EDITING IMAGES •Capturing and storing images directly from the screen is another way to assemble images for multimedia. EXIF- Exchange Image File- Exif is an image format for digital cameras. The width of each entry in the palette determines the number of colors which the wider full palette can represent. When the image contains more colors, GIF uses algorithms to match the colors of the image with the palette of optimum set of 256 colors available. Introduction• Still images are the important element of a multimedia project or a web site. The resolution is usually measured in DPI (Dots Per Inch). We can also say that it is a use of computer algorithms, in order to get enhanced image either to extract some useful information. Graphics make the multimedia application attractive. Therefore, in this case it is wasteful to store more than 256 different colors in an image. In order to make the file small, JPEG uses lossy compression. Therefore, such an image is also referred to as a binary image, since only two states are available. 1,285 Free images of Multimedia. multimedia images. The clarity or quality of 1-bit image is very low. Color look-up table will convert the logical color numbers stored in each pixel of video memory into physical colors, represented as RGB triplets, which can be displayed on a computer monitor. Monochrome image is created by using single color whereas colored image is created by using multiple colors. The lossless compression technique supported by PNG makes it perfect for storing detail-dependent images (e.g. A variety of tage are available to facilitate higher quality printing, since information about the camera and picture - taking condition can be stored and used by printers for possible color correction algorithms.it also includes specification of file format for audio that accompanies digital images. Digital imaging or digital image acquisition is the creation of a representation of the visual characteristics of an object, such as a physical scene or the interior structure of an object. GIF format is the most popular on the Internet because of its compact size. Monochrome image is created by using single color whereas colored image is created by using multiple colors. 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