摘要
分析了在VxWorks操作系统下,如何利用FreeType字体引擎提取高质量字符并不失真地进行字形变换。另外,为了让飞行员能在复杂的视频背景中识别出字符,提出了一种字符描边方法和一种视频背景融合算法。实验证明,新的解决方案既保证了显示效果,又符合实时系统对传输速度的要求。
This paper analyzes how to use the FreeType font engine to extract high-quality characters as well as glyph transformation without any distortion based on the VxWorks operating system. Besides, in order to allow the pilot to identify characters in the complex video background, this paper proposes a method of character stroke and an algorithm of video background fusion. Experiments show that new solutions not only ensure the display effect, but also meet the real-time system requirements on the transmission speed.
出处
《电子技术应用》
北大核心
2015年第4期25-28,共4页
Application of Electronic Technique
