中文说明：
经由HSI彩色空间转换、Canny算子边缘检测、索书号边缘点彩色分割等步骤的索书号文字图像分割（内含源文件和所用图像）.
English Description：
The text image segmentation (including the source file and the image used) of the request number through the steps of HSI color space conversion, Canny operator edge detection and color segmentation of the edge points of the request number