. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 1.2.7 Basic Vector Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 on the system. 1.2.7 Basic Vector Support Using the GFig plug-in, the GIMP now supports the basic functionality of vector layers. The GFig plug-in supports a number of vector graphics features such as and re-edit these layers in GFig afterwards. This level of vector support is still quite primitive, however, in comparison to dedicated vector-graphics programs such as Inkscape. 1.2.8 Also . . . There

pixel data. 7.5.7 Paths and SVG files SVG, standing for “Scalable Vector Graphics”, is an increasingly popular file format for vector graphics, in which graphical elements are represented in a resolution-independent elements are represented as arrays of pixels. GIMP is mainly a raster graphics program, but paths are vector entities. 80 CHAPTER 7. PAINTING WITH GIMP 7.6. BRUSHES Fortunately, paths are represented in paths from SVG files saved in other programs, such as Inkscape or Sodipodi, two popular open-source vector graphics applications. This is nice because those programs have much more powerful path-manipulation

Page 2 1.2. Raster Image Formats There are two main kinds of graphics: raster graphics and vector graphics. Raster (or bitmap) graphics is to represent graphics into small rectangular points points called pixels. Raster graphics is suitable to store digital photos. In contrast, vector graphics is to represent graphics into geometric objects like lines, curves, polygon, etc. These objects 1. Image Processing Basics Figure 1 Comparison of vector graphics and raster graphics GIMP NOTES UNIT IV D e v e l o p e d B y - S a r o j

available on the system. Basic vector support Using the GFig plug-in, the GIMP now supports the basic functionality of vector layers. The GFig plug-in supports a number of vector graphics features such as and re-edit these layers in GFig afterwards. This level of vector support is still quite primitive, however, in comparison to dedicated vector-graphics programs such as Inkscape. Also . . . There are the pixel data. Paths and SVG files SVG, standing for "Scalable Vector Graphics", is an increasingly popular file format for vector graphics, in which graphical elements are represented in a resolution-independent

Manipulation Program • Bitmap Graphics Editor • Open Source • Cross Platform • Not for Vector editing www.gimp.org Vector vs Bitmap Getting GIMP • Open Source • Cross Platform www.gimp.org • View Toolbox Images • Useful to crop unnecessary edges away • Can reduce file size when bringing images into a vector file • Use the ‘Rectangle Select’ tool (R) to draw a box around the area of the image you

Freehand or even 3-D programs is done with Bezier curves. Because Gimp is based on bitmaps and not on vector graphics (like Corel or Illustrator), you can’t draw with Bezier curves, but you can make advanced Vectors window you can see the position and angle of your vectors (brush strokes). The currently active vector is highlighted in red, all other vectors are grayed out. In the Preview window you’ll see how the add a vector, press the Add button. To delete an unwanted vector, press the Kill button. To navigate from one vector to another, press the “>>” and “<<” buttons. To set the base angle of a vector, drag