4.2 GRAPHICS SOFTWARE PAINTING AND DRAWING SOFTWARE Both painting and drawing software are examples of used to create, manage, and edit 2-dimension digital images. graphics programs 1 Painting software is pixel-based software that allows the user to create and save a series of colored , called , in a file. Bitmap-based images, also called , are made up of pixels in a like a mosaic, and each pixel, or , holds a specific color value. The most common bitmap-based formats are: JPEG, GIF, TIFF, PNG, PICT, and BMP. Painting software dots pixels bitmap 1 raster graphics grid bit Bitmap-based images have a fixed resolution and cannot be resized without losing image quality. Moreover, as the image files tend to be rather large, they are often compressed to reduce their size. can be stored, reused, and converted into other bitmap formats very easily. It can take thousands of dots to make up a whole picture, and to edit the image, each dot needs to be altered individually, although there are a lot of different tools to make it easier. Bitmaps The general features of a painting program are the following: a palette from which the user can choose the color; pens and with different styles and line thickness; brushes color fill tools; spray cans and eraser tools; cut, copy, and paste. Microsoft Paint is a basic program for non-professional users. Another popular free program for general users is Krita. 2 Drawing software is , or , . Vector graphics are made up of many individual objects that are defined by mathematical formulas and individual properties such as color, fill, and outline. Although the result is still a bitmap, i.e., a series of dots, the image consists of separate lines and shapes, which are the objects, and is saved as coordinates and equations, making the file size a lot smaller. Drawing software vector-based object-based software The image is edited by manipulating the objects. For example, if you want to draw a circle, you only need four sets of values: the x, y coordinates of the center, the stroke line style, the radius of the circle, and the fill color (optional). The big advantage of the vector approach is : one formula or set of formulas can represent many sizes of the object. Therefore, vector graphics are resolution-independent and easy to modify by simply changing the sets of values. AI (Adobe Illustrator) is a common drawing program. scalability DO Do you use any graphics programs? If so, what for? 1 MORE The quality of a bitmap image depends on the total number of pixels, i.e the , and the amount of information in each pixel, often called . 1 resolution colour depth MORE Microsoft Paint is a simple raster graphics editor included in all versions of Microsoft Windows. 2