在彩色片普及的今天,人工着色技法乍一看好象是时代的错误,然而,即使在机械万能的美国照相馆里,也有人工着色专业工作室。这是因为人工着色技术对于提高照片的价值有着重大的意义。人工着色技法大致有3种。即(1)用水溶性染料进行湿式修饰;(2)用彩色半 At the first glance, the art of colorization seems to be a mistake of the times at the first glance of the popularization of color films. However, there is also a professional coloring studio in the mechanical universal American photo studio. This is because artificial shading techniques are of great importance for increasing the value of photos. Artificial coloring techniques are roughly 3 kinds. Namely (1) wet modification with water-soluble dye; (2) half-colorized