only handle RGB, grayscale and indexed images. Working with pre-press and Gimp will require some planning, and it’s way too much to write about here. We have devoted a whole chapter to pre-press and Gimp examples of the different shapeburst gradients here below. The Repeat options (Sawtooth wave and Triangular wave) allow you to repeat a gradient fill. The shorter the drag distance, the more often the can act as a plug-in to Gimp. We will also take a brief look at things you need to know if you’re planning to buy a scanner. 220 T h e G i m p Us er ’ s M a n u a l S c a nni ng And Sc an n e r s SCANNING

of camera view. If you are preparing an image to be printed on a machine like this; or if you are planning on a gallery where the images are from different sources, some intelligent cropping to fit the best determined by the length of the drawn line. Repeat There are two repeat modes: Sawtooth Wave and Triangular Wave. The Sawtooth pattern is achieved by beginning with the foreground, transitioning to the remainder of the stroke; "Sawtooth wave" means that the gradient will be restarted from the beginning, which will often produce a color discontinuity; "Triangular wave" means that the gradient will be traversed

remainder of the stroke; • Sawtooth wave means that the gradient will be restarted from the beginning, which will often produce a color discontinuity; • Triangular wave means that the gradient will be traversed default. • Sawtooth Wave: the Sawtooth pattern is achieved by beginning with the foreground, transi- tioning to the background, then starting over with the foreground. • Triangular Wave: starts with the is related to wave height (0-200 pixels). Amplitude = 25 Period It is related to wavelength (0-200 pixels) Period = 110 Phase shift Wave is moved Phase shift = 0.400 Angle Warps wave Angle = -40°

found in Filters Render Patterns Diffraction Patterns . This filter lets you make diffraction or wave interference textures. You can change the Frequency, Contours and Sharp Edges for each of the RGB by using two different colors that you can define in the Colors tab. These two colors then create wave patterns based on a sine function. You can set the X and Y scales, which determine how stretched