自从1979年第一台彩扩机进入我国以来，国内外彩扩机发展十分迅速，新技术也很多，现在就将其中三项新技术介绍如下：CCD扫描彩色底片以校正偏色与校正密度众所周知．任何一点色彩，都是由红、绿、蓝王原色叠加组成，但由于三原色的比例不同，就产生无数的色彩。例如入的肤色， Since the first color enlarging machine entered China in 1979, domestic color enlarging machines have been developing rapidly and there are many new technologies. Now, three of the new technologies will be introduced as follows: CCD scanning color negative film to correct color cast and correct density is well known. Any color, by the red, green and blue primary colors superimposed composition, but due to the different proportions of the three primary colors, resulting in countless colors. For example, into the skin color,