投影教学PPT课件配色的研究

Research on Color Matching of Projection Teaching PPT Courseware

通过研究投影教学使用的PPT课件,提出了作为投影教学使用的PPT课件的配色方法.根据色彩的物理理论、人眼的光谱灵敏度、多媒体教室投影银幕的实测对比度等文献资料的分析.结果表明:电脑显示器的对比度高,多媒体教室投影银幕的对比度低,PPT课件在投影银幕的清晰度远不及电脑显示器.由此可得出,制作投影教学使用的PPT课件时,宜提高文图色与背景色的亮度差(明度差),强化亮度对比作用,且暗文图色与亮背景色的配色效果最好;宜提高文图色与背景色的纯度,强化纯度对比作用;文图色与背景色宜建立补色关系,强化色相对比作用.

Through the study of PPT courseware of using in projection teaching,color matching methods of PPT coursewareo was proposed.Based on analysing for the physical theory of colors,the spectrum sensitivity of human eyes and multimedia classroom projection screen test contrast was analysed. The results showed,the contrast of computer monitor is high and the contrast of multimedia classroom projection screen is low.Definition of PPT courseware on the projection screen is much lower than the computer monitor screen.It can be concluded that,when PPT courseware used in Projection teaching tobe make,the brightness difference(lightness difference)between the background color and the image-text color should be increased,the effect of brightness contrast should be strengthened,and the effect is best if dark image-text color matches bright background color.The purity of text color and background color should be increased,and the effect of purity contrast should be strengthened. Complementary relationship should be built between image-text color and background color and the hue contrast effect should be strengthened.