Awards & Engraving

June '19

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46 • A&E JUNE 2019 HALFTONE TUTORIAL To make a halftone from a full-color or grayscale image, open Photo-PAINT and open an image. Go to Image>Convert to Black and White. The next window opens, and a couple of decisions need to be made regarding the screen type options: the number of lines per inch (LPI), round versus square dots, and the angle direction (Figure H). Here's my short rule: if you want to create the illusion that the dots are cre- ating a gradient or lighter tone of a single, continuous color, and the item is going to be viewed at a distance less than 2 feet (the distance at which a magazine or newspaper would read), use an LPI at 150 to 300. Once the image has been converted to a halftone, save it as a BMP file (bitmap). Figure G is the result of the lawn tractor halftone image at 200 LPI. If you want Figure F Figure G Figure H

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