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Object into Graphic

Scanning a Horn

The tendency of scanners to generate false colors in metallic objects can sometimes be used to advantage to produce slightly iridescent effects, as in our saxophone in figure 6. A light green sheet was draped over the horn before scanning to create color reflections. Scanning artifacts, such as scratches on the glass and extraneous shadows add graphic character to the image.

Three-dimensional objects that are too large to fit on the scanner can, as with flat artwork, be scanned in parts and reassembled in an image-processing program.

Theme and variations

We further edited our assembled saxophone scan in Photoshop to produce some interesting graphic variations. To make a CD cover we applied the Watercolor filter (A). In the poster the green background and the opalescent colors on the saxophone were created by reversing (turning to negative) the cyan and yellow channels in a CMYK version of the image (B).

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