色标是用来表示特定含义的一种标识，一般用于流水作业场合，利于产品的快速识别和分类。随着现代自动化工业的来临，原有简单的单色色标识别已不能满足快速的工业需求，因此一种对系列色标组合判读的方法就诞生了。本设计通过Visual Basic编程实现，经过色标定位、颜色提取、色标对比识别等一系列步骤来实现色标判读。以色环电阻为例，首先将被测色环电阻图片输入软件，软件通过图像识别确定电阻环数、电阻正反及色环颜色的数据，然后通过色环电阻阻值计算公式确定阻值。本设计具有识别速度快、使用方便、可扩展性高等优点。

Color Tag indicates a special meaning, which is usually used to recognise and classify products in pipelining occasion. As the time of modern roboticized industry comes, quondam homochromous Color Tag is too simple to satisfy double-quick industrial demand.As a result, the technique of judgement of series Color Tag has its naissance. The technique comes true here via programing with Visual Basic. In order to recognise it, we orientate the Color Tag, distill the color and contrast one color with another. For example, we can figure out the value of color-ringed resistance by the technique. At first, wo input a picture of the resistance. The programme itself will tell us the direction, the rings and their color, then it calculates the value of the resistance by a special formula. The designment is excellent because it is convenient to use widely and it recognises quickly.