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）-through the HSI color space conversion, Canny operator edge detection, color Call edge points separate the steps of the characters image segmentation Call (intron source document and image)