范文编号:TX400 范文字数:9674,页数:32 摘要 在图像处理过程中,图像分割是其中十分重要的一个步骤。例如具体应用于文字识别领域时,应实现将文字从背景图像中分离的功能。但由于图像分辨率较低及图像背景比较复杂等原因,图像分割的效果往往不够理想,这也间接增加了文字识别的难度。 关键词:图像分割,计算机视觉,OpenCV,文本定位 ABSTRACT Image segmentation is one of the most important steps in the image processing. For example, when image segmentation is used in the field of character recognition, we should separate the text from the image background. However, due to the low image resolution, the complex image background or other reasons, the effect of image segmentation is often not optimal, which also indirectly increases the difficulty of character recognition. In view of such situation, this thesis introduces the concept of computer vision and details a typical computer vision library OpenCV with its historical development, content, structure and applications. At the same time, this thesis also describes how to improve image segmentation algorithm with the functions from OpenCV library, which aims at correcting the positioning and segmentation results of the printed texts, especially the handwritten texts in a complex image background condition. At the end of this thesis, we test the effectiveness of the improved image segmentation algorithm with a number of image files and analyze the specific effects of different related texts examples and compute respectively the Improvement rate of the handwritten texts and the printed texts. Keywords: Image Segmentation, Computer Vision, OpenCV, Text Positioning 摘要 I 第6章 文本区域定位改进的效果 23
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