游程长度 meaning in English

run length

Extracting 17 morphological features to stored - grain pests binary image , for example area , circle quality , invariable moment and so on . extracting 27 texture features to stored - grain pests " gray image . the morphological features extracted are normalized
针对粮虫的灰度图像，提取出基于灰度直方图、游程长度和灰度共生矩阵的27个纹理特征，并对提取的形态学特征进行归一化处理。
Then the research of algorithms of texture - based image retrieval is devised from the following three aspects : 1 . texture - based image retrieval algorithms in spatial domain : perceptual - based tamura texture feature is analyzed ; run - length texture analyzing algorithm is improved ; four laws " texture operators which perform better in texture analyzing are achieved
空间域纹理分析方法方面，分析了对应于人眼视觉感受的tamura纹理特征，将游程长度纹理分析算法改进为游程累加的纹理检索算法；总结出在基于纹理特征的图象检索中四个有效的laws纹理能量算子。