In view of existing hairiness and scratch in the yarn black board,through some methods such as smoothness processing,threshold value division and image repairing,can come up with a clear digital image without noise points and exactly measure the yarn diameter.
通过与纱线的实际直径对比得知,所采用的图像处理方法计算出来的纱线直径与实测直径一致,证明利用该图像处理方法所测得的纱线直径不失真,且能够准确反映纱线的外观特征,如粗节、细节、棉结等,为纱线黑板自动化评定提供了参考。
By explanation of two deferent determination methods and by analysis of and comparison between the calculation(measurement) results obtained by using there two methods, the author found out a better method to determine the strand diameter.
紧压绞合导体单线直径的确定是电缆结构设计的重要步骤之一。