本文在众多图像分割方法中选择了研究比较早的边缘检测方法来实现图像的分割，并且比较了各种边缘检测算子的检测效果。-This text choose EdgeDetection method that is a study early for image segmentation to carry out Detection image, and compare every kind of edge detection technique.

采用基于连通域（四连通域和八连通域）的方法对图像中的文字进行检测-Detection of the text in the image based on the connected domain (four-connected domain and eight-connected domain) method

ocr image to text detection