Computer graphics
Transcript: Computer Graphics The best software for vector graphics would be adobe photoshop. Bitmap Graphics (raster graphics) In computer graphics, a raster graphics image, or bitmap, is a dot matrix data structure representing a generally rectangular grid of pixels, or points of color, viewable via a monitor, paper, or other display medium. Raster images are stored in image files with varying formats. Grayscale images are a type of bitmap graphics which contain various shades of gray as well as pure black and white. The best software for vector graphics would be Inkscape. InkScape is a cross-platform vector graphics editor. The aspect that makes InkScape so popular is that it is under active development, and new features are being added constantly.Some of the vector objects that Inkscape supports are paths, Rectangles, 3D Boxes, Ellipses, Clones, Spirals, Text, export images as raster/bitmap images, connectors (like ones used in flowcharts), spiro splines to create curves, and more. Two visual examples of bitmap graphics Vector graphics (object oriented graphics) Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygon(s), which are all based on mathematical expressions, to represent images in computer graphics. They can be resized or stretched. Vector-oriented images are more flexible than bit maps because they can be resized and stretched. In addition, images stored as vectors look better on devices (monitors and printers) with higher resolution, Bitmap (or raster) images are stored as a series of tiny dots called pixels. Each pixel is actually a very small square that is assigned a color, and then arranged in a pattern to form the image. When you zoom in on a bitmap image you can see the individual pixels that make up that image therefore making the image unclear. They cannot scale up to an arbitrary resolution without loss of apparent quality. No matter what you’re doing web layout, photo manipulation, or extensive graphic creation – Photoshop just has the tools. It comes up with brushes, gradients and other extensions to enhance the app further, and has all the graphic power. Strengths The Advantage to Vector images is it's scalability. In other words, it's ability to reproduce itself at any size. With a vector image, you never have to worry about an image looking pixelated. You could print it on a postage stamp , or on the side of a bus, and never loose any quality. Weaknesses The disadvantage of vector is the time and talent needed to create it. You cannot take a photograph in vector. Vector images are drawn on the computer by a graphic artist using vector editing software such as Adobe Illustrator. As a result, vector graphics are not as cost effective as bitmap images. Software Two visual examples for vector graphics Strengths The advantage to bitmaps are they are easy to create. Take a picture with a digital camera, or scan something in, and you've got one. They are easy to come by and are cost effective. You can take a picture or scan in a drawing, and easily show it on the Internet or send in an email. Weaknesses The disadvantage of bitmaps, is they are not upward scalable. You can make a bitmap smaller without too much loss, but you cannot make it larger without loosing quality. If you ever see a bitmap image blown up, you'll notice it has little individual squares or dots that make up the image. When you see it at its optimal size you don't notice the individual dots, but if you try to make it bigger, the image becomes pixelated. Software
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