Theories And Methods Of Computer Aided Color Design

After a long developing history of artistic color, handicraft color and engineeringcolor, Color Science now has evolved into the age of CACD (Computer Aided ColorDesign). Because of long time neglect of products' color design in Industrial Designfield, the relevant researchers, scientific and technical references and research resultsof CACD are very limited compared with other Industrial Design directions ofComputer Aided Form Design and Computer Aided Ergonomic Design.To resolve this problem, with the support of national 863 projects "Research ofcomputer-aided conceptual design on products innovation", this dissertation carriedon exploratory research to the theory, method and software of CACD.1. Research foundation of CACDAfter analyzing the development history of color sciences to CACD, the featureand meaning of CACD were discussed. Aiming at the current research status, keytechniques in CACD, such as color quantization, color harmony, color emotion, coloraesthetic measure and color design software were summarized.2. Research on single color selectionColor selection was researched from color attributes, color vision perceiving andcolor similarity. Using the characteristics of color models, color selection mode based oncolor attribute was proposed in numerical value. Basing on the features of human'svision perceiving, color selection mode facing physiology and psychology was built.To facilitate the users finding the most similar color in standard color database, themeasurement of color similarity was studied and the methods of judging colorsimilarity in different color models and precision were constructed.3. Research on color harmonyThe relationship between color harmony and color attributes was studied and themethods of color harmony in single attribute, double attributes and triple attributeswere built. Color harmony can be gotten through hue, brightness, chroma, tone andcolor solid. Single attribute color harmony includes hue harmony, brightness harmonyand chroma harmony. Double attributes harmony was realized by color tone designthrough synthesizing brightness with chroma. Three attributes harmony was carriedout by color harmony design in even color space with harmony framework.4. Research on color emotion Driven by color emotion, color emotional language was studied and classified,color emotion indices was set up, and the stylized color language was founded.According to the principle and method of the color language coordinate, thethree-dimensional semantic space of color scheme was established. Through themapping between color emotion and color attribute, the color scheme with designemotion was obtained. Using cluster's analysis method in fuzzy mathematics, theaesthetic value of color scheme was analyzed and optimized.5. CACD System based on CAXABasing on the above researches, a strategic solution of products' color designsoftware was proposed. Basing on the cooperation with CAXA, computer-aided colordesign system (CACDS) composed of four parts (color selection, color harmony,color scheme and color assistant database) was developed.