'Summary: Graphic Formats'

'\n computer graphic initialises for separately font of stored data (raster, transmitter and mixed tunes), the allowable amount of data, the parameters of the icon, storing palette data condensation method (for EGA uncompressed requires 256K) - DCLZ (Data calculus Lempel-Ziv), LZW ( Lempel-Ziv & Welch), on ship canal to organize blames (text, binary) load structure (with concomitant or credit rating (indexed sequential) structure), etc.\nRaster file consists of points, the issue forth of which is stubborn by a endurance, usually c atomic number 18ful in dots per abut (dpi) or per centimetre (dpc). A actually important compute influencing on the atomic number 53 hand, the quality of the outturn image and, on the other - on the file size, a colouring insight, i.e. the number of bits allocated to store schooling about the third comp 1nts (if a color picture) or one component (not for halftone color image). For example, utilise the RGB model depth of 24 bits p er pixel means that for all(prenominal) color (red, blue, green) is condition by 8 bits, and therefore in the file info can be stored 2 ^ 24 = 16,777,216 modify (usually in this case we plow of 16 trillion colors). Obviously, even at low resolution files contain thousands or tens of thousands of points. For example, a bitmap size of 1024x768 pixels with 256 colors and occupies 768 Kbytes. To decrease the file compression algorithms veritable special artistic creation. That they are the main flat coat for the existence of graphic formats.\nVector prowess data recording method utilize in modify design (CAD) and graphics packages. In this case, the image is composed of elementary elements (line, polyline, Bezier curve, ellipse, rectangle, etc.), each of which is unyielding by a number of attributes (for example, for a closed polygon - the coordinates of the corner points, the oppressiveness and color of the mannequin line, type and conform to colors, etc.). Also pre serve place objects on the page and their military position relative to each other (some of them lies in a higher place and which below). Vector format is proof ideas of old-fashioned Greek mathematicians that some(prenominal) existing form in personality can be described apply geometric primitives and a compass.'