An Improved TV Caption Image Binarization Method

被引：0
|
作者：
Jiang Mengdi [1 ]
Cheng Jianghua [1 ]
Chen Minghui [2 ]
Ku Xishu [1 ]
机构：
[1] Natl Univ Def Technol, Coll Elect Sci & Engn, Changsha 410073, Hunan, Peoples R China
[2] PLA Rocket Force Changsha Area, Mil Representat Off, Changsha 410073, Hunan, Peoples R China
来源：
NINTH INTERNATIONAL CONFERENCE ON GRAPHIC AND IMAGE PROCESSING (ICGIP 2017) | 2018年 / 10615卷
关键词：
Video caption; binarization; Niblack method; Otsu method;
D O I：
10.1117/12.2305343
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
TV Video caption image binarization has important influence on semantic video retrieval. An improved binarization method for caption image is proposed in this paper. In order to overcome the shortcomings of ghost and broken strokes problems of traditional Niblack method, the method has considered the global information of the images and the local information of the images. First, Tradition Otsu and Niblack thresholds are used for initial binarization. Second, we introduced the difference between maximum and minimum values in the local window as a third threshold to generate two images. Finally, with a logic AND operation of the two images, great results were obtained. The experiment results prove that the proposed method is reliable and effective.
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收藏
页数：6
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