Fine Art Glossary
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Complementary colors: two colors directly opposite one another on the color wheel. When placed next to one another, complementary colors are intensified and often appear to vibrate. When mixed, brown or gray is created. Red and green, blue and orange, and yellow and violet have the greatest degree of contrast. Red-violet and yellow-green, red-orange and blue-green, and yellow-orange and blue-violet are also complementary colors.
Composition: the arrangement of the design elements within the design area; the ordering of visual and emotional experience to give unity and consistency to a work of art and to allow the observer to comprehend its meaning.
Computer graphics: refers to visual images made with the assistance of computers. Computer graphics are often made with software called drawing, painting, illustrating and photographic programs or applications.
Contrast: the difference between elements or the opposition to various elements.
Cool color: colors whose relative visual temperatures make them seem cool. Cool colors generally include green, blue-green, blue, blue-violet, and violet.
Corrosion / Pitting
Corrosion is a chemical reaction between a material (usually metal) and its environment, which produces a deterioration of the material's properties. In some instances, corrosion can occur in a small or confined area in the form of pits on a metal surface. Pitting is an extreme, concentrated attack on a material which may take months, or even years, to become visible.
The network of fissures or cracks in a finish layer such as varnish, lacquer, or shellac, due to age degradation, expansion and contraction from climate changes, and other causes.
Craquelure: A network of fine cracks on a paintings surface, typically due to elemental expansion, contraction , and age.
In ceramics, a mismatch in the thermal expansion between the glaze of an item and its physical body often causes small hairline cracks of the glazed surface, which can potentially compromise the pieces structural integrity.
Occur when a material has been folded or bent, creating a line or ridge on the surface without breaking or tearing.