关键词: 维吾尔文字, 图像分割, HSI空间, 区域生长, Otsu法

Abstract: Based on the region growing（SRG） algorithm, how to select the correct seed location automatically is one of the major problems for text segmentation. Horizontal lines of the image bar are extracted through an edge detector. The statistical distribution of the pixels in saturation and intensity is done. This paper extracts the pure baselines using Otsu method, sets the baselines as the seed location, and extracts the Uyghur text from the color bar image using the law of growth. The algorithm is tested in four different types of background. Experiments show that this algorithm has 72.31% Character Extract Rate（CER） in flower background.

Key words: Uyghur text, image segmentation, HSI color space, Seed Region Growing（SRG） algorithm, Otsu