在科学技术类期刊中,常有大量的照片图,这些照片图的优劣直接影响论文的水平和刊物的质量。目前编辑部收到的照片适合编辑加工的却有限,许多作者由于种种原因把一些质量低劣的照片送到编辑部,而许多编辑又不熟悉选用照片的标准,因而造成作者与编辑,印刷厂与编辑间的一些矛盾。为此,笔者介绍一下平版印刷过程及如何评价一张照片图的优劣,供编辑同仁参考。 In science and technology journals, there are often a large number of photo maps, the merits of these photos directly affect the quality of the paper and the publication quality. At present, the editorial department receives a limited number of photos for editing and processing. Many authors send some poor quality photos to the editorial department for various reasons. Many editors are unfamiliar with the criteria for selecting photos, thus causing the authors and editors, printing houses, Some conflicts between editors. To this end, I introduce lithography process and how to evaluate the pros and cons of a photo map for reference for editors.