Abstract: Feather and down is very important to people’s life，and different kinds of feather and down varies in price and performance，so feather and down recognition being done precisely and rapidly is becoming more and more important.Towards to some abuse and trouble on traditional manual feather and down recognition，automation recognition of feather and down is becoming a trend.In the process of recognizing，image segmentation is a significant step，and the effect of it will directly affect the precise and the speed of the recognition system.So，the genetic algorithms is introduced into the system，and feather and down recognition rate is raised by the image segmentation algorithm based on the genetic algorithm.

Key words: feather and down image, image segmentation, genetic algorithms, threshold

摘要： 羽绒与人们的生活息息相关，不同种类的羽绒在价格、性能方面存在很大差别，故对羽绒进行准确、快速地识别，显得尤为重要。针对传统的人工检测羽绒的种种弊端和不便，羽绒种类自动检测成为一个趋势。在自动检测过程中，一个重要环节就是图像分割，图像分割的效果将直接影响到自动检测的速度和准确率。所以，将遗传算法引入到羽绒识别中来，利用基于遗传算法的阈值分割算法提高了羽绒识别率。

关键词: 羽绒图像, 图像分割, 遗传算法, 阈值