GCM 110 Chapter Notes - Chapter 3: Grayscale, Scalable Vector Graphics, Device Independence

• School: Ryerson University
• Department: Graphic Communications
• Course: GCM 110
• Professor: Diana Brown

Document Summary

Gcm 110: p. 59-63, 74-75, 79-80, 81-82, 92, 107-111. Kinds of original images: line type matter, lines, diagrams, and pen and ink drawings, continuous-tone photograph. One colour (monochrome), multicolor, or process colour (cmyk) Line screen: measure of how many halftone lines are printed in an inch (lpi) 133 lpi or higher dots will blend into a continuous tone, cannot see individual dots lpi is dependent on the original output device and type of paper. Digits are the fundamental basis for digital imaging. Materials destined for reproduction must be in the form of a digital file, and material that is reproduced is done by spots, dots, and pixels. Register: important when preparing art to print of 2 or more colours. Special colours: logos cannot be reproduced by overprinting, and just use special color inks (pms- pantone matching system) Duotones: a two-color half-tone, used to create more depth and contrast in b&w photos.