针对视频帧图像背景复杂、字体大小变化较大等特点，提出一种改进的视频帧中文本区域定位算法。

Contraposing the characters of images in video, such as complicated backdrop and big diversification of font, this paper proposes an improved algorithm for text region localization in video.

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实验表明，该算法可以提取视频帧中90%以上的文本区域，并且文本区域定位准确率达92.0%。

The experiments show that the algorithm can extract more than 90% of text regions contained in video frames and the precision can reach up to 92.0%.

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实验结果表明，提出的方法可以快速有效地定位数字图像中的文本区域。

Experimental results showed that the method can rapidly and effectively localize the text region in digital image.

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